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Michael Sumption

  • Professor, Materials Science Engineering
  • MSE Undergrad Studies Chair
  • 394 Watts Hall
    2041 College Rd.
    Columbus, OH 43210
  • 614-688-3684

About

Mike Sumption serves as the associate director of the Center for Superconducting and Magnetic Materials, as well as the Superconducting Technology Center. Dr. Sumption’s background is in materials science and solid state physics. His area of research is materials physics with a concentration in superconductive, electronic, and magnetic materials, with particular interests in:

(i) high performance Nb3Sn, A15 phase formation, and transport properties,
(ii) MgB2 materials, with a focus on formation as well as dopant-induced enhancements of the upper critical fields and the related structural and transport properties,
(iii) Bi:2212 strands and their transport properties
(iv) nanoscale artificial pin structures in multilayer YBCO,
(v) magnetization, AC Losses, flux jumping, and current/field instabilities in superconducting strands,
(vi) flux pinning and connectivity in Nb3Sn and MgB2,
(vi) NbTi, Nb3Sn, Bi:2212, and YBCO-based cables in terms of loss, ICR, and current sharing related to HEP magnet applications.
(vii) oxipnictides, and
(viii) electronic materials and applications.

Efforts in modelling have included stability in Nb3Sn conductors and magnets, anisotropic continuum modeling of bridging and connectivity in superconducting composite structures, field modelling in coils, synergistic pinning in composites, AC loss in various conductors, and fault current limiter design. Materials studies have included rapid quenching and mechanical alloying in Nb3Al, proximity effects in NbTi, and the development of a new class of Nb3Sn strands.

Dr. Sumption’s research has been funded by various organizations, including the US Department of Energy, Division of High Energy Physics, NASA, the Navy, AFOSR, NIH, NRC, the Ohio Department of Development, and private industry. A number of national and international collaborations are ongoing, with universities, national labs, and industry. Dr. Sumption more than 225 publications, and serves on the editorial board of Superconducting Science and Technology and Cryogenics.

 

Honors

  • 2007

    Lumley Research Award. The Ohio State University.

  • 1993

    Award for best student paper. .

Journal Articles

2014

  • Li,Guangze; Zwayer,Jake,B; Kovacs,Chris,J; Susner,Michael,A; Sumption,Michael,D; Rindfleisch,Matthew,A; Thong,Chee,J; Tomsic,Michael; Collings,Edward,W, 2014, "Transport Critical Current Densities and n-Values of Multifilamentary MgB2 Wires at Various Temperatures and Magnetic Fields." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 24, no. 3, 6200105 -
  • Xu,X; Sumption,M; Peng,X; Collings,E,W, 2014, "Refinement of Nb3Sn grain size by the generation of ZrO2 precipitates in Nb3Sn wires." APPLIED PHYSICS LETTERS 104, no. 8, 082602 -
  • Bohnenstiehl,S,D; Susner,M,A; Dregia,S,A; Sumption,M,D; Donovan,J; Collings,E,W, 2014, "Experimental determination of the peritectic transition temperature of MgB2 in the Mg-B phase diagram." THERMOCHIMICA ACTA 576, 27 - 35.
  • Susner,M,A; Bohnenstiehl,S,D; Dregia,S,A; Sumption,M,D; Yang,Y; Donovan,J,J; Collings,E,W, 2014, "Homogeneous carbon doping of magnesium diboride by high-temperature, high-pressure synthesis." APPLIED PHYSICS LETTERS 104, no. 16, 162603 -
  • Collings,Edward,W; Susner,Mike,A; Sumption,Mike,D; Dietderich,Daniel,R, 2014, "Extracted Strand Magnetizations of an HQ Type Nb3Sn Rutherford Cable and Estimation of Transport Corrections at Operating and Injection Fields." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 24, no. 3, 4802605 -
  • Xu,Xingchen; Collings,Edward; Sumption,Michael; Kovacs,Chris; Peng,Xuan, 2014, "The Effects of Ti Addition and High Cu/Sn Ratio on Tube Type (Nb, Ta)(3)Sn Strands, and a New Type of Strand Designed to Reduce Unreacted Nb Ratio." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 24, no. 3, 6000904 -
  • Susner,M,A; Carnevale,S,D; Kent,T,F; Gerber,L,M; Phillips,P,J; Sumption,M,D; Myers,R,C, 2014, "Catalyst-free ZnO nanowires on silicon by pulsed laser deposition with tunable density and aspect ratio." PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES 62, 95 - 103.
  • Majoros,M; Sumption,M,D; Collings,E,W; Long,N,J, 2014, "Stability, Inter-Strand Contact Resistance, and AC Losses in YBCO Roebel Cables." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 24, no. 3, 6600505 -

2013

  • Kim,H,S; Sumption,M,D; Lim,H; Collings,E,W, 2013, "Evaluation of Mechanical Properties of Tubular Materials With Hydraulic Bulge Test for Superconducting Radio Frequency (SRF) Cavities." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 23, no. 3, 3500604 -
  • Susner,M,A; Sumption,M,D; Rindfleisch,M,A; Collings,E,W, 2013, "Critical current densities of doped MgB2 strands in low and high applied field ranges: The J(c)(B) crossover effect." PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 490, 20 - 25.
  • Li,G,Z; Reddy,K,M; Zwayer,J,B; Kuldell,M,A; Susner,M,A; Yang,Y; Sumption,M,D; Yue,J,J; Rindfleisch,M,A; Tomsic,M,J; Thong,C,J; Collings,E,W, 2013, "Critical Current Density and Current Transfer Length of Multifilamentary MgB2 Strands of Various Design." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 23, no. 3, 6200204 -
  • Myers,C,S; Susner,M,A; Motowidlo,L; Distin,J; Sumption,M,D; Collings,E,W, 2013, "Specific Heats of Composite Bi2212, Nb3Sn, and MgB2 Wire Conductors." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 23, no. 3, 8800204 -
  • Li,G,Z; Sumption,M,D; Zwayer,J,B; Susner,M,A; Rindfleisch,M,A; Thong,C,J; Tomsic,M,J; Collings,E,W, 2013, "Effects of carbon concentration and filament number on advanced internal Mg infiltration-processed MgB2 strands." SUPERCONDUCTOR SCIENCE & TECHNOLOGY 26, no. 9, 095007 -
  • Murphy,John,P; Mullins,Matthew,J; Barnes,Paul,N; Haugan,Timothy,J; Levin,George,A; Majoros,Milan; Sumption,Michael,D; Collings,Edward,W; Polak,Milan; Mozola,Pavol, 2013, "Experiment Setup for Calorimetric Measurements of Losses in HTS Coils Due to AC Current and External Magnetic Fields." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 23, no. 3, 4701505 -
  • Kanuchova,M; Majoros,M; Kanuch,J; Ding,Y; Susner,M,A; Sumption,M,D; Collings,E,W, 2013, "LiFeAs Pnictide Superconductor-A Simple Electrochemical Method of Preparation." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 23, no. 3, 7300204 -
  • Xu,X; Sumption,M,D; Bhartiya,S; Peng,X; Collings,E,W, 2013, "Critical current densities and microstructures in rod-in-tube and tube type Nb3Sn strands-present status and prospects for improvement." SUPERCONDUCTOR SCIENCE & TECHNOLOGY 26, no. 7, 075015 -
  • Collings,E,W; Sumption,M,D; Susner,M,A; Dietderich,D,R; Kroopshoop,E; Nijhuis,A, 2013, "Coupling- and Persistent-Current Magnetizations of Nb3Sn Rutherford Cables With Cores of Stainless Steel and Woven Glass-Fiber Tape Measured by Pick-Up Coil Magnetometry." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 23, no. 3, 4702305 -
  • Xu,X; Sumption,M,D; Collings,E,W, 2013, "A model for phase evolution and volume expansion in tube type Nb3Sn conductors." SUPERCONDUCTOR SCIENCE & TECHNOLOGY 26, no. 12, 125006 -

2012

  • Majoros,M; Sumption,M,D; Susner,M,A; Kovacs,C; Collings,E,W; Peng,X; Doll,D; Tomsic,M; Lyons,D, 2012, "A model superconducting helical undulator fabricated using a small filament, tube-type, multifilamentary Nb3Sn wire." SUPERCONDUCTOR SCIENCE & TECHNOLOGY 25, no. 11, 115006 -
  • Ding,Y; Li,G,Z; Yang,Y; Kovacs,C,J; Susner,M,A; Sumption,M,D; Sun,Y; Zhuang,J,C; Shi,Z,X; Majoros,M; Collings,E,W, 2012, "Effects of cold high pressure densification on Cu sheathed Ba0.6K0.4Fe2As2 superconducting wire." PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 483, 13 - 16.
  • Li,G,Z; Sumption,M,D; Susner,M,A; Yang,Y; Reddy,K,M; Rindfleisch,M,A; Tomsic,M,J; Thong,C,J; Collings,E,W, 2012, "The critical current density of advanced internal-Mg-diffusion-processed MgB2 wires." SUPERCONDUCTOR SCIENCE & TECHNOLOGY 25, no. 11, 115023 -
  • Sumption,M,D; Bhartiya,S; Kovacks,C; Peng,X; Gregory,E; Tomsic,M,J; Collings,E,W, 2012, "Critical current density and stability of Tube Type Nb3Sn conductors." CRYOGENICS 52, no. 2-3, 91 - 99.
  • Li,G,Z; Yang,Y; Susner,M,A; Sumption,M,D; Collings,E,W, 2012, "Critical current densities and n-values of MgB2 strands over a wide range of temperatures and fields." SUPERCONDUCTOR SCIENCE & TECHNOLOGY 25, no. 2, 025001 -
  • Susner,M,A; Daniels,T,W; Sumption,M,D; Rindfleisch,M,A; Thong,C,J; Collings,E,W, 2012, "Drawing induced texture and the evolution of superconductive properties with heat treatment time in powder-in-tube in situ processed MgB2 strands." SUPERCONDUCTOR SCIENCE & TECHNOLOGY 25, no. 6, 065002 -

2011

  • Shi,Z,X; Susner,M,A; Sumption,M,D; Collings,E,W; Peng,X; Rindfleisch,M; Tomsic,M,J, 2011, "Doping effect and flux pinning mechanism of nano-SiC additions in MgB2 strands." SUPERCONDUCTOR SCIENCE & TECHNOLOGY 24, no. 6, 065015 -
  • Majoros,Milan; Sumption,Michael,D; Collings,Edward,W; Tomsic,Michael, 2011, "Design of Nb3Sn-Based Short Period Model Superconducting Helical Undulator." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 21, no. 3, 1713 - 1716.
  • Mentink,M,GT; Anders,A; Dhalle,M,MJ; Dietderich,D,R; Godeke,A; Goldacker,W; Hellman,F; ten Kate,H,HJ; Putnam,D; Slack,J,L; Sumption,M,D; Susner,M,A, 2011, "Analysis of Bulk and Thin Film Model Samples Intended for Investigating the Strain Sensitivity of Niobium-Tin." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 21, no. 3, 2550 - 2553.
  • Majoros,M; KANUCHOVA,M; Susner,M,A; Sumption,M,D; Myers,C,S; Bohnenstiehl,S,D; Collings,E,W, 2011, "Effects of Heat Treatments on the Properties of SmFeAsO1-xFx Oxypnictide Bulks Prepared via a Single-Step Route." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 21, no. 3, 2853 - 2857.
  • Collings,E,W; Sumption,M,D; Susner,M,A; Dietderich,D,R; Nijhuis,A, 2011, "Coupling Loss, Interstrand Contact Resistance, and Magnetization of Nb3Sn Rutherford Cables With Cores of MgO Tape and S-Glass Ribbon." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 21, no. 3, 2367 - 2371.
  • Bohnenstiehl,S,D; Susner,M,A; Yang,Y; Collings,E,W; Sumption,M,D; Rindfleisch,M,A; Boone,R, 2011, "Carbon doping of MgB2 by toluene and malic-acid-in-toluene." PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 471, no. 3-4, 108 - 111.
  • Myers,C,S; Susner,M,A; Motowidlo,L; Distin,J; Sumption,M,D; Collings,E,W, 2011, "Transport, Magnetic, and SEM Characterization of a Novel Design Bi-2212 Strand." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 21, no. 3, 2804 - 2807.
  • Majoros,M; Sumption,M,D; Susner,M,A; Collings,E,W; Souc,J; Gomory,F; Vojenciak,M; Fisher,L,M; Kalinov,A,V; Voloshin,I,F, 2011, "AC Magnetization Loss of a YBCO Coated Conductor Measured Using Three Different Techniques." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 21, no. 3, 3293 - 3296.

2010

  • Shi,Z,X; Susner,M,A; Majoros,M; Sumption,M,D; Peng,X; Rindfleisch,M; Tomsic,M,J; Collings,E,W, 2010, "Anisotropic connectivity and its influence on critical current densities, irreversibility fields, and flux creep in in situ processed MgB2 strands." SUPERCONDUCTOR SCIENCE & TECHNOLOGY 23, no. 4, 045018 -

2009

  • T.J. Haugan, F.J. Baca, M.J. Mullins, N.A. Pierce, T.A. Campbell, E.L. Brewster, P.N. Barnes, H. Wang, and M. D. Sumption, 2009, "Temperature and Magnetic Field Dependence of Critical Current Density of YBCO with Varying Flux Pinning Additions." IEEE Trans. Appl. Supercond. 19, 3270 -
  • M. Majoros, Mike D. Sumption, M. A. Susner, M. Tomsic, M. Rindfleisch, and E. W. Collings, 2009, "AC Losses in MgB2 Multifilamentary Strands With Magnetic and Non-Magnetic Sheath Materials." IEEE Trans. Appl. Supercond. 19, 3106 -
  • M. Majoros, M. D. Sumption, M. A. Susner, S. Bhartiya, S. D. Bohnenstiehl, E. W. Collings, M. Tomsic, M. Rindfleisch, J. Phillips, D. Lyons, and J. Yue, 2009, "A Model Superconducting Helical Undulator Wound Using a Wind and React MgB2 Multifilamentary Wire." IEEE Trans. Appl. Supercond. 19, 1376 -
  • M. Majoros, M. D. Sumption, E. W. Collings, and David Doll, 2009, "Numerical Modeling of the AC Limiting Properties of Insulated, Conduction Cooled MgB2 Strands." IEEE Trans. Appl. Supercond. 19, 1872 -
  • M. A. Susner, M. Bhatia, M. D. Sumption, and E. W. Collings, 2009, "Electrical resistivity, Debye temperature, and connectivity in heavily doped bulk MgB2 superconductors." Appl. Phys. 105, 103916 -
  • M.D. Sumption, M. Susner, E.W. Collings, D.R. Dietderich, E. Barzi, D. Turrioni, R. Yamada, and A.V. Zlobin, 2009, "Effect of Cable Edge Deformation on RRR and Magnetization of Strands Extracted From Nb3Sn Rutherford-Type Cables." IEEE Trans. Appl. Supercond. 19, 2481 -
  • S. Bhartiya, Mike D. Sumption, Xuan Peng, Eric Gregory, Michael J. Tomsic, and Edward W. Collings, 2009, "Investigation of the Effects of Low Temperature Heat Treatments on the Microstructure and Properties of Multifilamentary, Tube-Type Nb3Sn Strands." IEEE Trans. Appl. Supercond. 19, 2588 -
  • M. A. A. Mahmud, Mike A. Susner, Mike D. Sumption, Matthew A. Rindfleisch, Michael J. Tomsic, Jinji Yue, and Edward W. Collings, 2009, "Comparison of Critical Current Density in MgB2 With Different Boron Sources and Nano-Particle Dopant Additions." IEEE Trans. Appl. Supercond. 19, 2756 -
  • Milan Majoros, Mike D. Sumption, and Edward W. Collings, 2009, "Transport AC Loss Reduction in Striated YBCO Coated Conductors by Magnetic Screening." IEEE Trans. Appl. Supercond. 19, 3352 -
  • Y.S. Hascicek, Y.Akin, T.W. Baldwin, M.M. Rindfleisch, J. Yue, M.D. Sumption and M Tomsic, 2009, "An MgB2 12.5 kVA superconductor transformer." Supercond. Sci. Technol. 22, 065002 -
  • E.Gregory, M. Tomsic, X. Peng, M.D. Sumption, and A. Ghosh, 2009, "Nb3Sn Superconductors Made by an Economical Tubular Process." IEEE Trans. Appl. Supercond. 19, 2602 -
  • Gregory,Eric; Tomsic,Michael; Peng,Xuan; Sumption,Mike,D; Ghosh,Arup, 2009, "Nb3Sn Superconductors Made by an Economical Tubular Process." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 19, no. 3, 2602 - 2605.
  • Bhartiya,S; Sumption,Mike,D; Peng,Xuan; Gregory,Eric; Tomsic,Michael,J; Collings,Edward,W, 2009, "Investigation of the Effects of Low Temperature Heat Treatments on the Microstructure and Properties of Multifilamentary, Tube-Type Nb3Sn Strands." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 19, no. 3, 2588 - 2592.

2008

  • E.W. Collings, M.D. Sumption, M.A. Susner, D.R. Dietderich, E. Barzi, A.V. Zlobin, Y. Ilyin, and A. Nijhuis, 2008, "Influence of a Stainless Steel Core on Coupling Loss, Interstrand Contact Resistance, and Magnetization of an Nb3Sn Rutherford Cable." IEEE Trans. Appl. Supercond. 18, 1301 -
  • M.D. Sumption, T.J. Haugan, P.N. Barnes, T.A. Campbell, N.A. Pierce, and C. Varanasi, 2008, "Magnetization Creep and Decay in YBa2Cu3O7−x Thin Films with Artificial Nanostructure Pinning." Phys. Rev. B 77, 094506 -
  • E.W. Collings, M.D. Sumption, E. Barzi, D. Turrioni, R. Yamada, A.V. Zlobin, Y. Ilyin, and A. Nijhuis, 2008, "Effect of Core Width, Placement, and Condition on Calorimetrically Measured AC Loss and Interstrand Contact Resistance of Stainless-Steel-Cored Nb3Sn Rutherford Cables." IEEE Trans. Appl. Supercond. 18, 1370 -
  • R. Zeng, L. Lu, W. X. Li, J. L. Wang, D. Q. Shi, J. Horvat, S.X. Dou, M. Bhatia, M. Sumption, E. W. Collings, J. M. Yoo, M. Tomsic, and M. Rindfleisch, 2008, "Excess Mg Addition MgB2 /Fe Wires with Enhanced Critical Current Density." Journal of Applied Physics 103, 083911 -
  • V.R. Nazareth, M.D. Sumption, X. Peng, E. Gregory, M.J. Tomsic, and E.W. Collings, 2008, "Characterization of the A15 Layer Growth and Microstructure for Varying Heat Treatments in Nb3Sn Tube Type Composites." IEEE Trans. Appl. Supercond. 18, 1005 -
  • E. Gregory, M. Tomsic, X. Peng, R. Dhaka, V.R. Nazareth, and M.D. Sumption, 2008, "Niobium Tin Conductors for High Energy Physics, Fusion, MRI and NMR Applications Made by Different Techniques." IEEE Trans. Appl. Supercond. 18, 989 -
  • D. Turrioni, E. Barzi, M. Bossert, E.W. Collings, V. Nazareth, M.D. Sumption, R. Yamada, and A.V. Zlobin, 2008, "Effects of Rutherford Cable Parameters on Nb3Sn Extracted Strand Deformation and Performance." IEEE Trans. Appl. Supercond. 18, 1114 -
  • E.W. Collings, M.D. Sumption, M. Bhatia, M.A. Susner and S.D. Bohnenstiehl, 2008, "Prospects for Improving the Intrinsic and Extrinsic Properties of Magnesium Diboride Superconducting Strands." Supercond. Sci. Technol. 21, 103001 -

2007

  • C.V. Varanasi, J. Burke, L. Brunke, H. Wang, M. Sumption, and P.N. Barnes, 2007, "Enhancement and Angular Dependence of Transport Critical Current Density in Pulsed Laser Deposited YBa2Cu3O7-x+BaSnO3 Films in Applied Magnetic Fields." J. Appl. Phys. 102, 063909 -
  • S. Bohnenstiehl, S.A. Dregia, M.D. Sumption, and E.W. Collings, 2007, "Thermal Analysis of MgB2 Formation." IEEE Trans. Appl. Supercond. 17, 2754 - 2756.
  • X. Peng, M.D. Sumption, R. Dhaka, M. Bhatia, M. Tomsic, E. Gregory, and E.W. Collings, 2007, "Composition Profiles and Upper Critical Field Measurement of Internal-Sn and Tube-Type Conductors." IEEE Trans. Appl. Supercon. 17, 2668 - 2671.
  • M. Majoros, L. Ye, A.V. Velichko, T.A. Coombs, M.D. Sumption, and E.W. Collings, 2007, "Transport AC Losses in YBCO Coated Conductors." Supercond. Sci. Tech. 20, S299 - S304.
  • R.K. Dhaka, M.D. Sumption, X. Peng, E. Gregory, M. Tomsic, and E.W. Collings, 2007, "Experimental and Theoretical Investigation of the Diffusion of Sn in Internal-Tin Nb3Sn." IEEE Trans. Appl. Supercon. 17, 2655 - 2659.
  • E. Gregory, B.A. Zeitlin, M. Tomsic, X. Peng, M.D. Sumption, and E.W. Collings, 2007, "Some Factors Involved in the Development of a Tubular Process for Nb3Sn Conductors." IEEE Trans. Appl. Supercond. 17, 2664 - 2667.
  • E.W. Collings, M.D. Sumption, G. Ambrosio, Y. Ilyin, an A. Nijhuis, 2007, "Interstrand Contact Resistance in Nb3Sn Cables Under LARP-Type Preparation Conditions." IEEE Trans. Appl. Supercond. 17, 2494 - 2497.
  • M. Tomsic, M. Rindfleisch, J.J. Yue, K. McFadden, D. Doll, J. Phillips, M.D. Sumption, M. Bhatia, S. Bohnenstiehl, and E.W. Collings, 2007, "Development of Magnesium Diboride (MgB2) Wires and Magnets Using in-situ Strand Fabrication Method." Physica C 456, 203 - 208.
  • M. Tomsic, M. Rindfleisch, J.J. Yue, K. McFadden, J. Phillips, M.D. Sumption, M. Bhatia, S. Bohnenstiehl, and E.W. Collings, 2007, "Overview of MgB2 Superconductor Applications." Int. J. Appl. Ceramic Tech. 4, 250 - 259.
  • M. Bhatia, M.D. Sumption, S. Bohnenstiehl, S.A. Dregia, E.W. Collings, M. Tomsic, and M. Rindfleisch, 2007, "Superconducting Properties of SiC Doped MgB2 Formed Below and Above Mg's Melting Point." IEEE Trans. Appl. Supercond. 17, 2750 - 2753.
  • M. Eisterer, K.R. Schoppl, H.W. Weber, M.D. Sumption, and M. Bhatia, 2007, "Neutron Irradiation of SiC Doped and Magnesium Rich MgB2 Wires." IEEE Trans. Appl. Supercond. 17, 2814 - 2817.
  • M. Majoros, L. Ye, A.A. Campbell, T.A. Coombs, M.D. Sumption, and E.W. Collings, 2007, "Modeling of Transport AC Losses in Superconducting Arrays Carrying Anti-parallel Currents." IEEE Trans. Appl. Supercond. 17, 1803 - 1806.
  • M. Majoros, L. Ye, A.A. Campbell, T.A. Coombs, A.V. Velichko, D.M. Astill, P. Sargent, M. Haslett, M.D. Sumption, E.W. Collings, M. Tomsic, S. Harrison, and M. Husband, 2007, "Fault Current Limiting Properties of MgB2 Superconducting Wires." IEEE Trans. Appl. Supercond. 17, 1764 - 1767.
  • M.S.A. Hossain, J.H. Kim, X. Xu, X.L. Wang, M. Rindfleisch, M. Tomsic, M.D. Sumption, E.W. Collings, and S.X. Dou, 2007, "Significant Enhancement of Hc2 and Hirr in MgB2+C4H6O5 Bulks at a Low Sintering Temperature of 600 Degrees C." Supercond. Sci. Tech. 20, L51 - L54.
  • M.A. Susner, M.D. Sumption, M. Bhatia, X. Peng, M. Tomsic, M.A. Rindfleisch, and E.W. Collings, 2007, "Influence of Mg/B Ratio and SiC Doping on Microstructure and High Field Transport J(c) in MgB2 strands." Physica C 456, 180 - 187.
  • M.D. Sumption and E.W. Collings, 2007, "Modeling Current-Field Instabilities in High Performance Nb3Sn Strands in Moderate Field." IEEE Trans. Appl. Supercon. 17, 2714 - 2717.
  • M.D. Sumption, S.A. Bohnenstiehl, F. Buta, M. Majoros, S. Kawabata, M. Tomsic, M. Rindfleisch, J. Phillips, J. Yue, and E.W. Collings, 2007, "Wind and React and React and Wind MgB2 Solenoid, Race Track and Pancake Coils." IEEE Trans. Appl. Supercond. 17, 2286 - 2290.
  • M.D. Sumption, M.A. Susner, M. Bhatia, M.A. Rindfleisch, M.J. Tomsic, K.J. McFadden, and E.W. Collings, 2007, "High Critical Current Density Multifilamentary MgB2 Strands." IEEE Trans. Appl. Supercond. 17, 2838 - 2841.
  • M.D. Sumption, M. Bhatia, F. Buta, S. Bohnenstiehl, M. Tomsic, M. Rindfleisch, J. Yue, J. Phillips, S. Kawabata, and E.W. Collings, 2007, "Multifilamentary MgB2-Based Solenoidal and Racetrack Coils." Physica C 458, 12 - 20.
  • M.D. Sumption, S. Kawabata, and E.W. Collings, 2007, "AC Loss in YBCO Coated Conductors Exposed to External Magnetic Fields at 50-200 Hz." Physica C 466, no. (1-2), 29 - 36.

2006

  • E. W. Collings, S. Kawabata, M. Bhatia, M. Tomsic, and M. D. Sumption, 2006, "Magnesium Diboride Superconducting Strand for Accelerator and Light Source Applications." IEEE Trans. Appl. Supercond. 16, 1445 - 1449.
  • M.D. Sumption, M. Bhatia, M. Rindfleisch, M. Tomsic, E.W. Collings, 2006, "Transport Properties of Multifilamentary, in-situ route, Cu-Stabilized MgB2 Strands: one Metre Segments and the J(c)(B,T) Dependence of Short Samples." Supercond. Sci. Tech. 19, 155 - 160.
  • Y. Iwasa, D.C. Larbalestier, M. Okada, R. Penco, M. D. Sumption, and X. Xi, 2006, "A Round Table Discussion on MgB2, Toward a Wide Market or a Niche Production?—A Summary." IEEE Trans. Appl. Supercond. 16, 1457 - 1461.
  • E. W. Collings, M. D. Sumption, D. R. Dietderich, Y. Ilyin, and A. Nijhuis, 2006, "Magnetic Measurements of Interstrand Contact Resistance in Nb3Sn Cables in Response to Variation of Pre-Heat-Treatment Condition." IEEE Trans. Appl. Supercond. 16, 1200 - 1204.
  • Shcherbakova, S.X. Dou, S. Soltanian, D. Wexler, M. Bhatia, M.D. Sumption, E.W. Collings, 2006, "The Effect of Doping Level and Sintering Temperature on Jc(H) Performance in Nano-SiC Doped and Pure MgB2 Wires." J. Appl. Phys. 99, 08M510 -

2005

  • X.L. Wang, A.H. Li, S. Yu, S. Ooi, K. Hirata, C.T. Lin, E.W. Collings, M.D. Sumption, M. Bhatia, S.Y. Ding, and S.X. Dou, 2005, "Thermally Assisted Flux Flow and Individual Vortex Pinning in Bi2Sr2Ca2Cu3O10 Single Crystals Grown by the Traveling Solvent Floating Zone Technique." J. Appl. Phys. 97, 10B114 -
  • X. Peng, M.D. Sumption, M. Tomsic, E. Gregory, and E. W. Collings, 2005, "Microstructural Investigation of Internal-Tin Nb3Sn Strands." IEEE Trans. Appl. Supercond. 15, 3422 - 3425.
  • X. Wu, X. Peng, M.D. Sumption, M. Tomsic, E. Gregory, and E. W. Collings, 2005, "Ti and Sn Diffusion and its Influence on Phase Formation in Internal-tin Nb3Sn Superconductor Strands." IEEE Trans. Appl. Supercond. 15, 3399 - 3402.
  • X. Peng, M.D. Sumption, and E.W. Collings, 2005, "Magnetization and deff in Multifilamentary Nb3Sn strands." IEEE Trans. Appl. Supercond. 15, 3498 - 3501.
  • X. Peng, M.D. Sumption, and E.W. Collings, 2005, "Finite Element Analysis of Drawing of Multifilamentary Wires." IEEE Trans. Appl. Supercond. 15, 3426 - 3429.
  • P.N. Barnes, T.J. Haugan, M.D. Sumption, and B.C Harrison, 2005, "Pinning Enhancement of YBa2Cu3O7-d Thin Films with Y2BaCuO5 Nanoparticulates." IEEE Trans. Appl. Supercond. 15, 3766 - 3769.
  • E. Gregory, M. Tomsic, M.D. Sumption, X. Peng, X. Wu, E. W. Collings, and B. A. Zeitlin, 2005, "The Introduction of Titanium into Internal-Tin Nb3Sn by a Variety of Procedures." IEEE Trans. Appl. Supercond. 15, 3478 - 3481.
  • F. Buta, M.D. Sumption, and E.W. Collings, 2005, "Flux Pinning in RHQT-Processed Nb3Al after Various Transformation Heat Treatments." IEEE Trans. Appl. Supercond. 15, 3380 - 3384.
  • M.D. Sumption, M. Bhatia, M. Rindfleisch, J. Phillips, M. Tomsic, and E. W. Collings, 2005, "MgB2/Cu Racetrack Coil Winding, Insulating, and Testing." IEEE Trans. Appl. Supercond. 15, 1457 - 1460.
  • M.D. Sumption, P.N. Barnes, and E.W. Collings, 2005, "AC Losses of Coated Conductors in Perpendicular Fields and Concepts for Twisting." IEEE Trans. Appl. Supercond. 15, 2815 - 2818.
  • M.D. Sumption, M. Bhatia, X. Wu, M. Rindfleisch, M. Tomsic and E.W. Collings, 2005, "Multifilamentary, in-situ Route, Cu-Stabilized MgB2 Strands." Supercond. Sci. Technol. 18, 730 - 734.
  • A.H. Li, H.K. Liu, M. Ionescu, X.L. Wang, S.X. Dou, E.W. Collings, M.D. Sumption, M. Bhatia, Z.W. Lin, and J.G. Zhu, 2005, "Improvement of Critical Current Density and Thermally Assisted Individual Vortex Depinning in Pulsed-Laser-Deposited YBa2Cu3O7-ï�¤ Thin Films on SrTiO3 (100) Substrate with Surface Modification by Ag Nanodots." J. Appl. Phys. 97, 10B107 -
  • P.N. Barnes, G.L. Rhoads, J.C. Tolliver, M.D. Sumption, and K.W. Schmaeman, 2005, "Compact, Lightweight, Superconducting Power Generators." IEEE Transactions on Magnetics 41, 268 - 273.
  • P.N. Barnes, G.A. Levin, C. Varanasi, and M.D. Sumption, 2005, "Low AC Loss Structures in YBCO Coated Conductors with Filamentary Current Sharing." IEEE Trans. Appl. Supercond. 15, 2827 - 2830.
  • M.D. Sumption, M. Bhatia, M. Rindfleisch, M. Tomsic, S. Soltanian, S.X. Dou, and E.W. Collings, 2005, "Large Upper Critical Field and Irreversibility Field in MgB2 Wires with SiC Additions." Appl. Phys. Let. 86, 92507 -
  • M.D. Sumption, M. Bhatia, M. Rindfleisch, M. Tomsic, and E.W. Collings, 2005, "Transport and Magnetic Jc of MgB2 Strands and Small Helical Coils." Appl. Phys. Let. 86, 102501 -
  • S. Soltanian, X.L. Wang, J. Horvat, S.X. Dou, M.D. Sumption, M. Bhatia, E.W. Collings, P. Munroe, and M. Tomsic, 2005, "High Transport Critical Current Density and Large Hc2 and Hirr in Nanoscale SiC doped MgB2 Wires Sintered at Low Temperature." Supercond. Sci. Technol. 18, 658 - 666.
  • P.N. Barnes, M.D. Sumption, and G.L. Rhoads, 2005, "Review of High Power Density Superconducting Generators: Present State and Prospects for Incorporating YBCO Windings." Cryogenics 45, 670 - 686.
  • M. Bhatia, M.D. Sumption, and E.W. Collings, 2005, "Effect of Various Additions on Upper Critical Field and Irreversibility Field of in-situ MgB2 Superconducting Bulk Material." IEEE Trans. Appl. Supercond. 15, 3204 - 3206.
  • M. Bhatia, M.D. Sumption, E. W. Collings, and S. Dregia, 2005, "Increases in the Irreversibility Field and the Upper Critical Field of Bulk MgB2 by ZrB2 Addition." Appl. Phys. Lett. 87, 042505 -
  • M.D. Sumption, M. Bhatia, F. Buta, S Bohnenstiehl, M Tomsic, M. Rindfleisch, J. Yue, J. Phillips, S. Kawabata and E.W. Collings, 2005, "Solenoidal Coils Made from Monofilamentary and Multifilamentary MgB2 Strands." Supercond. Sci. Tech. 18, 961 - 965.
  • M.D. Sumption, E.W. Collings, and P. Barnes, 2005, "AC Loss in Striped (Filamentary) YBCO Coated Conductors Leading to Designs for High Frequencies and Field-Sweep Amplitudes." Supercond. Sci. Tech. 18, 122 -

2004

  • J. Fang, X.M. Luo, D.X. Chen, Et Al., 2004, "AC Magnetic Losses In Bi-2223/Ag Tapes with Different Aspect Ratios." Physica C 412-414, 1134 - 1138.
  • P.N. Barnes and M.D. Sumption, 2004, "Low Loss Striated YBa2Cu3O7-ï�¤ Coated Conductor with Filamentary Current Sharing." J. Appl. Phys. 96, 6550 - 6556.
  • J. Fang, X.M. Luo, D.X. Chen, Et Al., 2004, "Geometry Dependence of Magnetic and Transport AC Losses in Bi-2223/Ag Tapes with Different Aspect Ratios." Supercond. Sci. Technol. 17, 1173 - 1179.
  • M.D. Sumption, X. Peng, E. Lee, X. Wu, and E.W. Collings, 2004, "Analysis of Magnetization, AC Loss, and deff for Various Internal-Sn Based Nb3Sn Multifilamentary Strands with and without Subelement Splitting." Cryogenics 44, 711 - 725.
  • M.D. Sumption, M. Bhatia, S .X. Dou, M. Rindfleisch, M. Tomsic, L. Arda, M. Ozdemir, Y. Hascicek and E.W. Collings, 2004, "Irreversibility Field and Flux Pinning in MgB2 with and without SiC Additions." Supercond. Sci. Technol. 17, 1180 - 1184.
  • T. Haugan, P.N. Barnes, R. Wheeler, F. Meisenkothen, and M. Sumption, 2004, "Addition of Nanoparticle Dispersions to Enhance Flux Pinning of the YBa2Cu3O7-X Superconductor." Nature 430, 867 - 870.
  • E.W. Collings, M.D. Sumption, and T. Tajima, 2004, "Magnesium Diboride Superconducting RF Resonant Cavities for High Energy Particle Acceleration." Supercond. Sci. Technol. 17, S595 - S601.
  • M.D. Sumption and E.W. Collings, 2004, "Stability and Instability in High Performance (Metastable) Composite Strands During I-V Measurement." Physica C 401, 66 - 74.
  • M.D. Sumption and E.W. Collings, 2004, "Stability and Instability in High Performance (Metastable) Composite Strands During I-V Measurement." Physica C 401, 66 - 74.
  • M. Bhatia, M.D. Sumption, M. Tomsic, and E.W. Collings, 2004, "Influence of Heat Treatment Schedules on the Transport Current Densities of Long and Short Segments of Superconducting MgB2 Wire." Physica C 407, 153 - 159.
  • M. Bhatia, M.D. Sumption, M. Tomsic, and E.W. Collings, 2004, "Influence of Heat Treatment Schedules on Magnetic Jc and Phase Formation in Bulk MgB2." Physica C 415, 158 - 162.

2003

  • M.D. Sumption and E.W. Collings, 2003, "Stability and Flux Jumping of Internal-Sn, Nb3Sn Conductors (and a Model System, MgB2)." IEEE Trans. Appl. Supercond. 13, 3394 - 3397.
  • F. Buta, M. D. Sumption, and E. W. Collings, 2003, "Phase Stability at High Temperatures in the Nb-Al System." IEEE Trans. Appl. Supercond. 13, 3462 - 3465.
  • E.W. Collings, E. Lee, M.D. Sumption, M. Tomsic, 2003, "Continuous- and Batch-Processed MgB2/Fe Strands - Transport and Magnetic Properties." Physica C 386, 555 - 559.
  • E. Lee, M.D. Sumption, and E.W. Collings, 2003, "Temperature and Field Dependence of the Effective Matrix Resistivity of Bi:2223/Ag Composites." IEEE Appl. Supercond. 13, 3614 - 3617.
  • M.D. Sumption, E.L. Coleman, C.B. Cobb, P.N. Barnes, T.J. Haugan, J. Tolliver, C.E. Oberly, and E.W. Collings, 2003, "Hysteretic Loss vs. Filament Width in Thin YBCO Films Near the Penetration Field." IEEE Trans. Appl. Supercond. 13, 3553 - 3556.
  • M.D. Sumption, F. Buta, M. Tomsic, A. Austen, E. Gregory, M. Rudziak, T. Wong, L. Motowidlo, Y. Hascicek, R. M. Scanlan, H. Higley, and E.W. Collings, 2003, "Nb3Al Strand Processing, Transport Properties, and Cabling." IEEE Trans. Appl. Supercond. 13, 3466 - 3469.
  • X. Peng, M.D. Sumption, and E.W. Collings, 2003, "Finite Element Modeling of Hydrostatic Extrusion for Mono-Core Superconductor Billets." IEEE Trans. Appl. Supercond. 13, 3434 - 3437.
  • T. Haugan, P.N. Barnes, I. Maartense, C.B. Cobb, E.J. Lee, and M.D. Sumption, 2003, "Island Growth Of Y2BaCuO5 Nanoparticles in (211(~1.5 nm)/123(~10nm))Xn Composite Multilayer Structures to Enhance Flux Pinning of YBa2Cu3O7-ï�¤ Films." J. Mat. Res. 18, 2618 - 2623.
  • F. Buta, M. D. Sumption, and E. W. Collings, 2003, "Influence of Transformation Heat Treatment on Microstructure and Defects in RHQT-Processed Nb3Al." IEEE Trans. Appl. Supercond. 13, 3458 - 3461.
  • M.D. Sumption, X. Peng, E. Lee, F. Buta, E.W. Collings, and M. Tomsic, 2003, "Fabrication and Properties of PIT Nb-Al and Nb-Sn Based Superconductors." IEEE Trans. Appl. Supercond. 13, 3486 - 3489.
  • A. Kikuchi, Y. Iijima, K. Inoue, F. Buta, M.D. Sumption, and E.W. Collings, 2003, "Nb3Sn Wires Synthesized by Rapid-Heating/Quenching Process of Rod-In-Tube Wire Precursors." IEEE Trans. Appl. Supercond. 13, 3430 - 3433.

2002

  • E.W. Collings, E. Lee, X.L. Wang, and M.D. Sumption, 2002, "Real and Apparent Loss Suppression in MgB2 Superconducting Composites." Physica C 382, 98 - 103.
  • C.B. Cobb, P.N. Barnes, T.J. Haugan, J. Tolliver, E. Lee, M.D. Sumption, E.W. Collings, and C.E. Oberly, 2002, "Hysteretic Loss Reduction in Striated YBCO." Physica C 382, 52 - 56.
  • H. Harada, T. Nakano, M. Tsuda, T. Hamajima, F. Buta, E. Lee, M.D. Sumption, E.W. Collings, K. Tagawa, H. Moriai, T. Takeuchi, H. Wada, and K. Watanabe, 2002, "Influence of Rapid Heating Condition on Superconducting Properties in Transformed Jelly-Roll Nb3Al Multifilamentary Wire." IEEE Trans. Appl. Supercond. 12, 1033 - 1036.
  • E.W. Collings, E. Lee, M.D. Sumption, and M. Tomsic, 2002, "Transport and Magnetic Properties of Continuously Processed MgB2." Rare Metal Mat. Eng. 31, 406 - 409.
  • S. Soltanian, X.L. Wang, A.H. Li, E.W. Collings, M.D. Sumption, E. Lee, H.K. Liu, and S.X. Dou, 2002, "Fabrication and Critical Current Density in 16-Filament Stainless Steel/Fe/MgB2 Square Wire." Solid State Commun. 124, 59 - 62.
  • M.D Sumption, E.W. Collings, and E. Lee, 2002, "Reduction and Elimination of External-Field AC Loss in MgB2/Fe Wire by in-situ Magnetic Shielding." Physica C 378-381, 894 - 898.

2001

  • E.W. Collings and M.D. Sumption, 2001, "Static and Dynamic Parasitic Magnetizations and their Control in Superconducting Accelerator Dipoles." Physica C 354, 60 - 65.
  • N. Harada, T. Nakano, M. Tsuda, T. Hamajima, F. Buta, E. Lee, M.D. Sumption, E.W. Collings, K. Tagawa, H. Moriai, T. Takeuchi, H. Wada, and K. Watanabe, 2001, "Superconducting Properties and Rapid Heating Condition in Transformed Jelly-Roll Nb3al Multifilamentary Wires as a Function of Maximum Ohmic-Heating Temperature." IEEE Trans. Appl. Supercond. 11, 3611 - 3614.
  • S.X. Dou, X.L. Wang, J. Horvat, D. Milliken, A.H. Li, K. Konstinov, E.W. Collings, M.D Sumption, and H.K. Liu, 2001, "Flux Jumping and a Bulk-To-Granular Transition in the Magnetization of a Compacted and Sintered MgB2 Superconductor." Physica C 361, 79 - 83.
  • E.W. Collings, M.D. Sumption, and E. Lee, 2001, "Magnetization as a Critical Defining Parameter for Strand in Precision Dipole Applications -- Implications for Field Error and F-J Stability." IEEE Trans. Appl. Supercond. 11, 2567 - 2570.
  • E.W. Collings and M.D. Sumption, 2001, "Transverse Resistivities an Untwisted HTSC Tapes at 4.2, 30, and 60 K." Physica C 357-360, 1153 - 1159.
  • S. Soltanian, X.L. Wang, I. Kusevic, E. Babic, A.H. Li, M.J. Qin, J. Horvat, H.K. Liu, E.W. Collings, E. Lee, M.D. Sumption, and S.X. Dou, 2001, "High Transport Critical Current Density above 30 K in Pure Fe-Clad MgB2 Tape." Physica C 361, 84 - 90.
  • F. Buta, M.D. Sumption, and E.W. Collings, 2001, "Studies for Processing Nb3Al Using a Rapid Ohmic-Heating and Quenching Method." IEEE Trans. Appl. Supercond. 11, 3980 - 3983.
  • M.D. Sumption, E.W. Collings, R.M. Scanlan, S.W. Kim, M. Wake, T. Shintomi, A. Nijhuis, and H.H.J. Ten Kate, 2001, "AC Loss and Interstrand Contact Resistance in Bare and Coated NbTi/Cu Rutherford Cables with Cores." Supercond. Sci. Tech. 14, 888 - 897.
  • M.D. Sumption, E.W. Collings, R.M. Scanlan, S.W. Kim, M. Wake, T. Shintomi, A. Nijhuis, and H.H.J. Ten Kate, 2001, "AC Loss in Cored Stabrite Cables in Response to External Compaction and Variation of Core Thickness and Width." Cryogenics 41, 733 - 744.
  • M.D. Sumption, E. Lee, and E.W. Collings, 2001, "Analysis of Eddy Current AC Loss for Untwisted, Multifilamentary Superconducting Composites with Various Aspect Ratios." IEEE Trans. Appl. Supercond. 11, 2963 - 2966.
  • M.D. Sumption, R.M. Scanlan, and E.W. Collings, 2001, "Coupling Loss and Contact Resistance in Cored Stabrite Cables -- Influences of Compaction and Variation of Core Width." IEEE Trans. Appl. Supercond. 11, 2571 - 2574.

2000

  • M.D. Sumption, E.W. Collings, A. Nijhuis, and R.M. Scanlan, 2000, "Coupling Current Control in Stabrite-Coated NbTi Rutherford Cables by Varying the Width of a Stainless Steel Core." Adv. Cryo. Eng. 46, 1043 - 1049.
  • M.D. Sumption, R.M. Scanlan, A. Nijhuis, and E.W. Collings, 2000, "AC Loss and Contact Resistance in Copper Stabilized Nb3Al Rutherford Cables with and without a Stainless Steel Core." IEEE Trans Appl. Supercond. 10, 1196 - 1199.
  • M.D. Sumption, E. Lee, and E.W. Collings, 2000, "Influence of Filamentary and Strand Aspect Ratios on AC Loss in Short, Untwisted Samples of HTSC and LTSC Superconducting Multifilamentary Composites." Physica C 337, 187 - 194.
  • M.D. Sumption, E. Lee, S.X. Dou, and E.W. Collings, 2000, "Extraction of Matrix Resistivity from Short Samples of Superconducting Multifilamentary Composite Tapes: Influence of Strand Twist Pitch and Internal Structure." Physica C 335, 164 - 169.

1999

  • E. Gregory, M. Tomsic, F. Buta, M.D. Sumption, and E.W. Collings, 1999, "Process Development and Microstructures of Nb3Al Precursor Strand for Reel-To-Reel Production." IEEE Trans. Appl. Supercond. 9, 2692 - 2695.
  • M.D. Sumption, E.W. Collings, R.M. Scanlan, A. Nijhuis, and H.H.J. Tenkate, 1999, "Core Suppressed AC Loss and Strand-Moderated Contact Resistance in a Nb3Sn Rutherford Cable." Cryogenics 39, 1 - 12.
  • M.D. Sumption, E.W. Collings, and E. Gregory, 1999, "Low Field Flux Jumping in High Performance Multifilamentary Nb3Al and Nb3Sn Composite Strands." IEEE Trans. Appl. Supercond. 9, 1455 - 1458.
  • E.W. Collings, M.D. Sumption, R.M. Scanlan, D.R. Dietderich, and L.R. Motowidlo, 1999, "Low Coupling Loss Core-Strengthened Bi:2212/Ag Rutherford Cables." IEEE Trans. Appl. Supercond. 9, 758 - 761.
  • M.D. Sumption, E.W. Collings, R.M. Scanlan, A. Nijhuis, H.H.J. Ten Kate, S.W. Kim, M. Wake, and T. Shintomi, 1999, "Influence of Strand Surface Condition on Interstrand Contact Resistance and Coupling Loss in NbTi-Wound Rutherford Cables." Cryogenics 39, 197 - 208.
  • M.D. Sumption and S. Takacs, 1999, "Flux Pinning in the Weak Layers of Superconducting Heterogeneous Structures." Physica C 316, 129 - 151.
  • F. Buta, M.D. Sumption, E.W. Collings, N, Harada, E. Gregory, and M. Tomsic, 1999, "Short Sample Quenching of Nb3al Precursor Strand in Support of Reel-To-Reel Process Development." IEEE Trans. Appl. Supercond 9, 1433 - 1436.
  • E.W. Collings, M.D. Sumption, R.M. Scanlan, D.R. Dietderich, L.R. Motowidlo, R.S. Sokolowski, Y. Aoki, and T. Hasegawa, 1999, "Bi:2212/Ag-Based Rutherford Cables: Production, Processing, and Properties." Supercond. Sci. Technol. 12, 87 - 96.

1998

  • M.D. Sumption, R.M. Scanlan, and E.W. Collings, 1998, "Coupling Current Control in Rutherford Cables Wound With NbTi, Nb3Sn, and Bi:2212/Ag." Physica C 310, 291 - 295.
  • M.D. Sumption, S. Takacs, and E.W. Collings, 1998, "Modelling of M-H Loop Anomalies in Synergistically Pinned, Heterogeneous, Composite Superconductors." Physica C 306, 300 - 308.
  • M.D. Sumption, R.M. Scanlan, and E.W. Collings, 1998, "AC Loss Properties of Some Bi:2212/Ag Rutherford Cables and a Comparison of Those with Cables Wound with NbTi and Nb3Sn." Cryogenics 38, 1225 - 1232.

1997

  • M.D. Sumption, and E.W. Collings, 1997, "Effect Current Strengths in NbTi Multifilamentary Samples with and without Nb Barriers and Processed Under Various Conditions." IEEE Trans. Appl. Supercond. 7, 1117 - 1121.
  • M.D. Sumption and E.W. Collings, 1997, "Anomalous Magnetic Properties and Proximity Effect Coupling in VAMAS Strands." Cryogenics 37, 165 - 170.
  • E.W. Collings, M.D. Sumption, K. Itoh, H. Wada, and K. Tachikawa, 1997, "Second VAMAS AC Loss Measurement Intercomparison: Magnetization Measurement of Low-Frequency (Hysteretic) AC Loss in NbTi Multifilamentary Strands." Cryogenics 37, 49 - 60.
  • E.W. Collings, M.D. Sumption, S.W. Kim, M. Wake, T. Shintomi, A. Nijhuis, H.H.J. Ten Kate, and R.M. Scanlan, 1997, "Suppression and Control of Coupling Currents in Stabrite-Coated Rutherford Cable With Cores of Various Materials and Thicknesses." IEEE Trans. Appl. Supercond. 7, 962 - 966.
  • M.D. Sumption, E.W. Collings, E. Gulko, T. Pyon, and E. Gregory, 1997, "Analysis of Optically and Magnetically Determined Bridging in Internal-Tin Process Nb3Sn Strands." IEEE Trans. Appl. Supercond. 7, 1368 - 1371.
  • M.D. Sumption, L.R. Motowidlo, and E.W. Collings, 1997, "Determination of the True (or Potential) Transport-Jc of a Multifilamentary Bi-HTSC/Ag Strand in the Presence of Bridging and Generalized Sausaging." Physica C 291, 267 - 273.

1996

  • M.D. Sumption and E.W. Collings, 1996, "A Model for Bridging and Coupling in Superconductors." Physica C 261, 245 - 258.

1995

  • E.W. Collings and M.D. Sumption, 1995, "Stability and AC Losses in HTSC/Ag Multifilamentary Strands." Applied Superconductivity 5, 551 - 557.
  • E.W. Collings, M.D. Sumption, K. Itoh, H. Wada, and K. Tachikawa, 1995, "Report on the Second VAMAS AC Loss Round Robin -- Magnetization Measurement of Low-Frequency Hysteretic Loss." IEEE Trans. Appl. Supercond. 5, 540 - 544.
  • E.W. Collings and M.D. Sumption, 1995, "Materials Selection for Ferromagnetic Compensation in Accelerator Magnets." IEEE Trans. Appl. Supercond. 5, 408 - 411.
  • M.D. Sumption and E.W. Collings, 1995, "Chromium Diffusion into Plated NbSn Strands Deduced From Electrical Resistivity Measurement." IEEE Trans. Appl. Supercond. 5, 1925 - 1928.
  • E. Gregory, E.A. Gulko, T. Pyun, M.D. Sumption, and E.W. Collings, 1995, "Dual Barrier for the Suppression of Residual Resistance Degradation in Chrome-Plated Niobium-Tin Strands." IEEE Trans. Appl. Supercond. 5, 1921 - 1924.
  • L.R. Motowidlo, G. Galinsky, G. Ozeryansky, W. Zhang, E.E. Hellstrom, M.D. Sumption, and E.W. Collings, 1995, "The Influence of Filament Size and Atmosphere on the Microstructure and Jc of Round Filament Bi2Sr2Ca1Cu2Ox Wires." IEEE Trans. Applied Supercond. 5, 1162 -
  • M.D. Sumption and E.W. Collings, 1995, "A Comparison of AC Loss, Magnetization, Hr, and U0 for Bi:2212 Wires, Crystals, and Melt Grown Samples." Applied Superconductivity 3, 521 - 533.
  • M.D. Sumption, H.H.J. Tenkate, R.M. Scanlan, and E.W. Collings, 1995, "Contact Resistance and Cable Loss Measurement of Coated Strands and the Cables Wound From Them." IEEE Trans. Appl. Supercond. 5, 692 - 696.

1994

  • M.D. Sumption, 1994, "Calculation of the Magnetization of Anisotropic Superconductors with Cylindrical Geometry in Transverse Fields." Applied Superconductivity 2, 41 - 46.
  • M.D. Sumption and E.W. Collings, 1994, "Creep in Superconductive Composites with Anisotropic Pinning Potentials." J. Appl. Phys. 76, 4766 -
  • M.D. Sumption and E.W. Collings, 1994, "Influence of Ni Additions on the Low Temperature Magnetic Properties of A Cu-1%Ni Alloy." J. Appl. Phys. 76, 7461 -
  • M.D. Sumption and E.W. Collings, 1994, "Influence of Twist-Pitch and Sample Length on Proximity Effect Coupling in Multifilamentary Composites Described in Terms of a Field-Independent, Two-Current-Region Model." Cryogenics 34, 491 - 505.

1993

  • M.D. Sumption, D.S. Pyun, and E.W. Collings, 1993, "Transverse and Longitudinal Resistivities in NbTi Multifilamentary Strands with Cu and CuMn Matrices." IEEE Trans. Appl. Supercond. 3, 859 - 862.
  • M.D. Sumption, K.R. Marken, Jr., and E.W. Collings, 1993, "Enhanced Static Magnetization and Creep in SCC-Type Strands via Cable and Twist Pitch Assisted Proximity Effects." IEEE Trans. Appl. Supercond. 3, 751 - 756.
  • M.D. Sumption and E.W. Collings, 1993, "Innovative Strand Design for Accelerator Magnets." Int. J. Mod. Phys. A no. Proc. Suppl. 2B, 662 - 664.

1992

  • E.W. Collings and M.D. Sumption, 1992, "AC Loss and Transverse Resistivity in Multifilamentary Strands with Matrices of Cu and CuMn." Cryogenics 32, 585 - 588.
  • E.W. Collings and M.D. Sumption, 1992, "Advanced Strand Design for Precision DC-Field and Ramp-Field Magnets." IEEE Trans. Magn. 28, 156 - 159.
  • E.W. Collings, M.D. Sumption, and W.J. Carr, Jr., 1992, "Hysteretic Method of Lower Critical Field Determination in High Tc Superconductors." Supercond. Sci. Technol. 5, S248 - 255.

1991

  • E.W. Collings, K.R. Marken, Jr., M.D. Sumption, G. Iwaki, and S. Sakai, 1991, "Design, Fabrication, and Properties of Magnetically Compensated SSC Strands." IEEE Trans. Magn. 27, 1787 - 1790.
  • M.D. Sumption, K.R. Marken, Jr., and E.W. Collings, 1991, "Hysteretic Surface Effects in Multifilamentary NbTi Wires Exposed to Transverse Applied Fields." IEEE Trans. Appl. Magn. 27, 2166 - 2169.
  • M.D. Sumption, K.R. Marken, Jr., and E.W. Collings, 1991, "Position and Amplitude of Proximity Effect Peaks in the Magnetization Curves of NbTi/Cu and NbTi/CuMn Multifilamentary Strands." IEEE Trans. Magn. 27, 1129 - 1132.
  • K.R. Marken, A.J. Markworth, M.D. Sumption, E.W. Collings, and R.M. Scanlan, 1991, "Eddy-Current Effects in Twisted and Wound SSC Strands." IEEE Trans. Magn. 27, 1791 - 1795.

1990

  • E.W. Collings, K.R. Marken, Jr., and M.D. Sumption, 1990, "Interfilament and Intrafilament Magnetizations in Fine-Filament Composite Strands for Precision-Dipole Magnet Applications." Cryogenics 30, 48 - 55.

Presentations

  • "Flux Pinning, Homogeneity, and Connectivity of Doped MgB2 Bulks and Strands." 2009, Presented at The International Cryogenic Materials Conference, Tuscon,
  • "Stability in Nb3Sn Conductors; Magnetic and Self Field Instability Considerations at 4 K And 2 K." 2009, Presented at The International Cryogenic Materials Conference, Tuscon,
  • "YBCO at High Frequencies for Air Force Applications." 2006, Presented at AFOSR Workshop,
  • "MgB2 Applications in the US." 2004, Presented at SCEnet, NL|NLD
  • "YBCO at High Frequencies for Air Force Applications." 2005, Presented at Workshop for Coated Conductors and Applications,
  • "Losses in YBCO Strands/Cables and Quench in YBCO Coils." 2009, Presented at 9th European Applied Superconductivity Conference, Dresden, DE|DEU
  • "Model Superconducting Helical Undulators Wound from Wind and React MgB2 and Nb3Sn Conductors." 2009, Presented at The 21st International Magnet Technology Conference, Heifei, CN|CHN
  • "MgB2 Materials and Applications." 2009, Nanjing, CN|CHN
  • "Losses in YBCO Strands/Cables and Quench in YBCO Coils." 2009,
  • "Magnesium Diboride Conductor Development at Hyper Tech Research." 2003, Presented at The US-Japan Workshop on High Tc Superconductors,
  • "AC Losses in YBCO Conductors: a High Frequency Perspective." 2003, Presented at the US-Japan Workshop on High Tc Superconductors,
  • "Proposal for a Round Robin for AC Loss Measurements in YBCO Coated Conductors." 2003, Presented at the VAMAS Versilles Agreement on Measurements and Standards, Tsukuba, JP|JPN
  • "Comparisons of Sn-Stoichiometry and Performance in RIT and Tube Conductors, Influence of Sn Level and Ti." 2009, Presented at The Low Temperature Superconductor Workshop,
  • "Stability in Nb3Sn Conductors; Magnetic and Self Field Instability Considerations at 4 K And 2 K." 2009, Presented at The Low Temperature Superconductor Workshop,
  • "Thermal diffusion and Quench Propagation in YBCO Coils with ZnO-Based Insulations." 2008, Presented at AFRL Review, San Francisco,
  • "YBCO Loss Measurements and Analysis for AFRL needs." 2007, Presented at AFRL Review, San Francisco,
  • "AC Loss For YBCO and MgB2 for Various Applications – i.e. How bad is YBCO? When is (round) MgB2 needed?." 2007, Presented at the International Symposium on Superconductivity, Tsukuba, JP|JPN
  • "Transport, flux pinning, and connectivity in MgB2." 2008, Presented at NIMS Week, Tsukuba, JP|JPN
  • "Instability Measurements in High Performance Nb3Sn." 2004, Presented at Low Temperature Workshop,
  • "Superconductivity, Superconductors, and Energy Needs." 2009, Presented at ENCOMM,
  • "OSU-FNAL Collaboration Presentation." 2009,
  • "Homogeneity and Connectivity of Doped MgB2 Bulks and Strands as Probed by Cp and Current Transport." 2009, Presented at APS March meeting, Pittsburgh,
  • "Loss and Stability Issues for YBCO and MgB2 in Motors/Generators -- a Simplified Look." 2009, Presented at NASA Workshop on Distributed Turboelectric Propulsion for Large Transport Aircraft, Cleveland,
  • "Influence of Artificial Nanostructure Pinning on the Critical Current Density in YBa2Cu3O7-x Thin Films." 2009, Presented at The Materials Research Society Meeting, San Francisco,
  • "Flux Pinning, Homogeneity, and Connectivity of Doped MgB2 Bulks and Strands." 2009, Presented at The Materials Research Society Meeting, San Francisco,
  • "Stabilities and Instabilities in High Current A15 strands." 2003, Presented at the Low Temperature Superconductor Workshop,
  • "deff in Nb3Sn Strands." 2003, Presented at the Low Temperature Superconductor Workshop,
  • "A15 Superconductors via a Mechanical Alloying Route." 2002, Presented at The Low Temperature Superconductor Workshop,
  • "Progress in Nb-Al in the US." 2002, Presented at the Low Temperature Superconductor Workshop,
  • "Magnetization Measurements of HEP Nb3Sn Strands." 2002, Presented at the Low Temperature Superconductor Workshop,
  • "AC Loss for YBCO and MgB2 for Various Applications – i.e. How bad is YBCO? When is (round) MgB2 needed?." 2007, Presented at The European Applied Superconductivity Conference, BE|BEL
  • "Stability in Nb3Sn -- Explicit Functional Dependence of Js on deff and RRR, Local RRR Degradation, Adiabatic considerations." 2008, Presented at the Workshop on Accelerator Magnet Design and Optimization, CERN, Geneva, CH|CHE
  • "MgB2 Superconducting Strands: Bc2, Birr, Doping, Connectivity, Phase Formation, Flux Pinning." 2008, Presented at APS March meeting, New Orleans,
  • "AC Loss For YBCO Coated Conductor In Utility Power Applications." 2006, Presented at The Electric Power Research Institute Workshop, Sixth Annual EPRI Superconductivity Conference and Task Force Meeting, Columbus,
  • "Stability in Nb3Sn -- Explicit Functional Dependence of Js on deff and RRR, Local RRR Degradation, Adiabatic considerations." 2007, Presented at The Low Temperature Superconductor Workshop, Lake Tahoe,
  • "Phase Formation and Performance Potential in Tube-Type Nb3Sn." 2007, Presented at The Low Temperature Superconductor Workshop, Lake Tahoe,
  • "MgB2 Superconducting Strands: Bc2, Birr, Doping, Connectivity, Phase Formation, Flux Pinning." 2007, Presented at MRS Spring Meeting,
  • "Effects of Simultaneous Titanium and Tantalum Additions on The Properties of Internal - Tin Type Nb3Sn Strands." 2007, Presented at The 20th International Conference on Magnet Technology, Philadelphia,
  • "AC Loss in YBCO and MgB2 Conductors: External Field loss, Transport losses, Influence of Magnetic Elements and Dynamic Resistance." 2007, Presented at MRS Spring Meeting,
  • "AC Loss for YBCO and MgB2." 2007, Presented at The US-Japan Workshop, Gifu, JP|JPN
  • "NbAl and MgB2 Development in the US." 2002, Presented at Conference on New Materials, Tsukuba, JP|JPN
  • "MgB2 at High Fields." 2005, Presented at The Low temperature Superconductor Workshop,
  • "MgB2; Niche Application or New Conductor." 2005, Presented at MT19, Genoa,
  • "Stability and Instability in Nb3Sn Conductors." 2005, Presented at The Low Temperature Workshop,
  • "MgB2 Conductor Development." 2005, Presented at the US-Japan Workshop, Madison,
  • "Losses in YBCO Conductors." 2005, Presented at the US-Japan Workshop, Madison,
  • "A Mechanical Alloying Route for Nb-Sn and Nb-Al Superconductors." 2001, Presented at the Low Temperature Workshop,
  • "Progress on Nb-Al in the US." 2001, Presented at the Low Temperature Superconductor Workshop,
  • "Stability in High Performance Nb3Sn." 2006, Presented at Low Temperature Superconductor Workshop,
  • "Phase formation in Tube-Type Nb3Sn Conductors." 2006, Presented at Low Temperature Superconductor Workshop,

Papers in Proceedings

2008

  • M. Majoros, M.D Sumption, S. Kawabata, and E.W. Collings "AC Losses in YBCO Coated Conductors with Different Substrates and Different Stabilizing Layers." in Adv. Cryo. Eng.. (1 2008). 509 -
  • M. Majoros, M. Bhatia, M.D Sumption, S. Kawabata, M. Tomsic, M. Rindfleisch, and E.W. Collings "AC Transport Current and Applied Magnetic Field Losses in MgB2 Multifilamentary Strands with Nonmagnetic Sheath Materials." in Adv. Cryo. Eng.. (1 2008). 388 -
  • M. Majoros and M. D. Sumption "Numerical Modelling of AC Limiting Properties of a Bare MgB2 Wire in Liquid Neon Bath." in Journal of Physics: Conference Series. (1 2008). 012226 -
  • R. Dhaka, M.D. Sumption, X. Peng, D. Doll, M. Tomsic, and E.W. Collings "Effects of Simultaneous Titanium and Tantalum Additions on the Properties of Internal Tin Type Nb3Sn Strands." in Adv. Cryo. Eng.. (1 2008). 317 -
  • M.A. Susner, M.D. Sumption, M. Bhatia, M.J. Tomsic, M.A. Rindfleisch, and E. W. Collings "Changes in Microstructure and Transport Properties of Magnesium Diboride Strands Through Hot Uniaxial Pressing." in Adv. Cryo. Eng.. (1 2008). 375 -
  • M.D. Sumption, V. Nazareth, E. Barzi, D. Turrioni, R. Yamada, A.V. Zlobin, and E.W. Collings "Measurements of RRR Variation in Strands Extracted from Nb3Sn-Type Rutherford Cables." in Adv. Cryo. Eng.. (1 2008). 277 -
  • E. Gregory, M. Tomsic, X. Peng, R. Dhaka, and M.D. Sumption "A Tubular Process for Making Nb3Sn Conductors." in Adv. Cryo. Eng.. (1 2008). 252 -
  • E.W. Collings, M.D. Sumption, E. Barzi, D. Turrioni, R. Yamada, A.V. Zlobin, Y. Ilyin, and A. Nijhuis "Measurements of AC Loss in Cored Nb3Sn Rutherford Cables: Interstrand Contact Resistance as Function of Core Width." in Adv. Cryo. Eng.. (1 2008). 285 -
  • V.R. Nazareth, M.D. Sumption, X. Peng, E. Gregory, M.J. Tomsic and E.W. Collings "Effects of Initial Sn/Cu Ratio and Heat Treatment on the Microstructure and Microchemistry of Cu-Nb-Sn-Ta Tube Type Composites." in Adv. Cryo. Eng.. (1 2008). 260 -
  • S.D. Bohnenstiehl, M.D. Sumption, M. Majoros, M. Tomsic, M. Rindfleisch, J. Phillips, J. Yue, and E.W. Collings "Wind and React MgB2 Rotor Coils." in Adv. Cryo. Eng.. (1 2008). 382 -

2006

  • E. Gregory, B.A. Zeitlin, M. Tomsic, X. Wu, X. Peng, M.D. Sumption, and E.W. Collings "Various Methods of Reducing AC Losses and Improving Stability of Internal-Tin Nb3Sn Superconductors." in Adv. Cryo. Eng.. (1 2006). 843 -
  • E.W. Collings, M.D. Sumption, D.R. Dietderich, Y. Ilyin, and A. Nijhuis "Influence of Pre-Heat Treatment Condition on Interstrand Contact Resistance in Nb3Sn Rutherford Cables by Calorimetric AC-Loss Measurement." in Adv. Cryo. Eng.. (1 2006). 851 -
  • P.N. Barnes, B.C. Harrison, J.W. Kell, G.A. Levin and M.D. Sumption "Improving YBCO Coated Conductors for Applications." in Adv. Cryo. Eng.. (1 2006). 425 -
  • X. Wu, X. Peng, M.D. Sumption, E. Gregory, M. Tomsic, and E.W. Collings "Titanium Diffusion and Phase Formation in Tube-Type Rod-In-Tube and Internal-Tin Nb3Sn Strands." in Adv. Cryo. Eng.. (1 2006). 504 -
  • M.D Sumption, A. Contractor, S. Kawabata, E.W. Collings "AC Loss (50-200 Hz) in YBCO Conductors with Filaments and Cu Stabilization." in Adv. Cryo. Eng.. (1 2006). 885 -
  • M.D. Sumption, M. Bhatia, F. Buta, S. Bohnenstiehl, M. Tomsic, M. Rindfleisch, J. Yue, J. Phillips, S. Kawabata, and E.W. Collings "Solenoid and Racetrack Coils Wound from MgB2 Strand." in Adv. Cryo. Eng.. (1 2006). 455 -
  • X. Peng, M.D. Sumption, M. Tomsic, and E.W. Collings "Investigation of Bonding Generation during the Drawing of Multifilamentary Wires." in Adv. Cryo. Eng.. (1 2006). 599 -
  • X. Peng, X. Wu, M.D. Sumption, M. Tomsic, E. Gregory, and E.W. Collings "Characterization of Ti and Ta Influence on Grain Shape and Size, as well as Transport Properties of Conductors Fabricated by the Internal-Sn Process." in Adv. Cryo. Eng.. (1 2006). 489 -
  • M.D. Sumption, A. Contractor, S. Kawabata, and E.W. Collings "AC Loss (50-200 Hz) in YBCO Conductors with Filaments and Cu Stabilization." in Adv. Cryo. Eng.. (1 2006). 851 -

2004

  • F. Buta, M.D. Sumption, and E.W. Collings "Critical Current Density and Bulk Pinning Force in RHQT-Processed Niobium Aluminum Superconductors." in Adv. Cryo. Eng.. (1 2004). 508 - 513.
  • E. Gregory, B.A. Zeitlin, M. Tomsic, T. Pyon, M.D. Sumption, E.W. Collings, E. Barzi, D.R. Dietderich, R.M. Scanlan, A.A. Polyanskii, and P.J. Lee "Attempts to Reduce AC Losses in High Current Density Internal-Sn Nb3Sn." in Adv. Cryo. Eng.. (1 2004). 789 - 796.
  • E. Lee, M.D. Sumption, E.W. Collings "Finite Element Modeling of AC Losses in Rutherford Cables with and without Resistive Cores." in Adv. Cryo. Eng.. (1 2004). 797 - 804.
  • X. Peng, M.D. Sumption, and E.W. Collings "Finite Element Analysis of Extrusion of Multifilamentary Superconductor Precursor." in Adv. Cryo. Eng.. (1 2004). 425 - 432.
  • M.D. Sumption, X. Peng, and E.W. Collings "Magnetization and deff in HEP Relevant Nb3Sn Strands-Influence of Interfilamentary Barriers." in Adv. Cryo. Eng.. (1 2004). 836 - 843.
  • M.D. Sumption, R.M. Scanlan , Y.A. Ilyin, A. Nijhuis, and E.W. Collings "Magnetic, Calorimetric, and Transport Studies of Coupling and Interstrand Contact Resistance in Nb3Sn Rutherford Cables with Bimetallic Cores of Stainless Steel Bonded to Copper." in Adv. Cryo. Eng.. (1 2004). 781 - 788.
  • F. Buta, Y. Hascicek, M.D. Sumption, and E.W. Collings "A Sol-Gel Approach to the Insulation of Rutherford Cables." in Adv. Cryo. Eng.. (1 2004). 273 - 279.
  • M.D. Sumption, X. Wu, E. Lee, and E.W. Collings "Flux Jump Instability of Internal-Tin Strands and Cable Sections." in Adv. Cryo. Eng.. (1 2004). 844 - 851.
  • M.D. Sumption, X. Wu, F. Buta, M. Tomsic, J. Phillips, K. Mcfadden, and E.W. Collings "Nb3Al Development For HEP Applications." in Adv. Cryo. Eng.. (1 2004). 485 - 491.
  • Z. Aslanoglu, L. Arda, Y. Akin, M.D. Sumption, M. Tomsic, and Y.S. Hascicek "Characterization of MgB2 Conductors for Coil Development." in Adv. Cryo. Eng.. (1 2004). 533 - 540.

2002

  • M.D. Sumption, X. Peng, E. Lee, M. Tomsic, and E.W. Collings "Fabrication and Phase-Transformation Issues in CTFF-MA Processed A15 Superconductors." in Adv. Cryo. Eng.. (1 2002). 1057 - 1064.
  • M.D. Sumption, E. Lee, E.W. Collings, X.L. Wang, and S.X. Dou "Suppression of AC (Hysteretic) Loss by Magnetic Shielding of MgB2/Fe Superconductors: The Pseudo-Meissner Effect." in Adv. Cryo. Eng.. (1 2002). 824 - 831.
  • M.K. Rudziak, T. Wong, F. Buta, M.D. Sumption, and E.W. Collings "Development of Multifilament Jelly-Roll NbAl Precursor for Melt-Quench Processing." in Adv. Cryo. Eng.. (1 2002). 1041 - 1048.
  • S.X. Dou, S. Soltanian, X.L. Wang, I. Kusevic, E. Babic, A.H. Li, M.J. Qin, J. Horvat, K.K. Liu, E.W. Collings, and M.D. Sumption "High Transport Critical Current Density Above 30 K in MgB2 Tape with Magnetic Shielding." in Adv. Cryo. Eng.. (1 2002).
  • F. Buta, M.D. Sumption, and E.W. Collings "Phase Formation During the Rapid-Heating Step of RHQ Nb3Al Superconductor Processing." in Adv. Cryo. Eng.. (1 2002). 1034 - 1040.
  • F. Buta, M.D. Sumption, Y. Hascicek, and E.W. Collings "Processing-Superconducting Property Correlation Studies in RHQ Processed Niobium-Aluminum Superconductors." in Adv. Cryo. Eng.. (1 2002). 1049 - 1056.
  • E.W. Collings, M.D. Sumption, R.M. Scanlan, and A. Nijhuis "External Stabilization of Nb3Sn Rutherford Cables -- AC Loss and Contact Resistance." in Adv. Cryo. Eng.. (1 2002). 1153 - 1160.

2000

  • F. Buta, M.D. Sumption, E.W. Collings, and M. Tomsic "Progress in the Pilot Scale Production of High-Temperature Processed Nb3Al Strand." in Adv. Cryo. Eng.. (1 2000). 1011 - 1018.
  • M.D. Sumption, and E.W. Collings "Aspect Ratio Dependence of Effective Transverse Matrix Resistivity in Multifilamentary HTSC/Ag Strands." in Advances in Superconductivity XII. (1 2000). 831 - 834.

1999

  • E.W. Collings, E. Lee, and M.D. Sumption "Magnetic Measurements of AC Loss in Short Multifilamentary Tapes." in Advances in Superconductivity XI. (1 1999). 831 -

1998

  • M.D. Sumption, E.W. Collings, R.M. Scanlan, A. Nijhuis, and H.H.J. Ten Kate "AC Loss and Contact Resistance in Nb3Sn Rutherford Cables with and without a Stainless Steel Core." in Adv. Cryo. Eng. (1 1998). 1077 - 1084.
  • M.D. Sumption, S. Takacs, and E.W. Collings "Factors Controlling the Onset of Proximity Effect Coupling (PEC) and the Influence of Pinning-Assisted PEC on M-H Loop Asymmetry in Multifilamentary Composites." in Adv. Cryo. Eng.. (1 1998). 1085 - 1092.
  • M.D. Sumption, S. Takacs, and E.W. Collings "Critical Currents and Superconducting Boundary Effects in S-N-S Multifilamentary Composites." in Adv. Cryo. Eng.. (1 1998). 843 - 850.
  • E.W. Collings, F. Buta, M.D. Sumption, E. Gregory, and M. Tomsic "Melt Quenched Nb3al Processing and Properties." in Proc. Workshop on Nb3Al Superconductor and its Applications. Tsukuba-Shi, (4 1998).
  • A. Calka, D. Wexler, J. Zhou, M.D. Sumption, E.W. Collings "Mechano-Synthesis of Niobium-Aluminum Superconductors for High Field Applications." in Mechanically Alloyed, Metastable and Nanocrystalline Materials. (1 1998). 1043 - 1048.
  • E.W. Collings, M.D. Sumption, R.M. Scanlan, D.R. Dietderich, L.R. Motowidlo, R.S. Sokolowski, Y. Aoki, and T. Hasegawa "Design, Processing, and Properties of Bi:2212/Ag Rutherford Cables." in Superconductivity XI. (1 1998).

1997

  • M.D. Sumption, L.R. Motowidlo, G. Ozeryansky, G. Galinsky, and E.W. Collings "Critical Current, Flux Pinning, and Hysteretic Loss in Round Multifilamentary Bi:2212/Ag Strands." in Adv. Cryo. Eng.. (1 1997). 573 - 580.
  • M.D. Sumption, R.M. Scanlan, A. Nijhuis, H.H.J. Ten Kate and E.W. Collings "Calorimetric Measurements of the Effect of Nickel and Stabrite Coatings and Resistive Cores on AC Loss in Accelerator Cables Under Fixed Pressure." in Adv. Cryo. Eng.. (1 1997). 1303 - 1311.
  • M.D. Sumption and S. Takács "Critical Current Densities in Heterogeneous Superconductors Determined From Magnetization Measurements." in Inst. Phys. Conf. Ser.. (1 1997). 913 -
  • M.D. Sumption, H. Liu, E. Gregory, and E.W. Collings "Enhanced Proximity Effect Coupling Due to the Presence of a Nb Barrier in Fine NbTi Multifilamentary Composites." in Adv. Cryo. Eng.. (1 1997). 1175 - 1182.
  • E.W. Collings, M.D. Sumption, R.M. Scanlan, S.W. Kim, M. Wake, and T. Shintomi "Magnetic Studies of AC Loss in Pressurized Rutherford Cables with Coated Strands and Resistive Cores." in Adv. Cryo. Eng.. (1 1997). 1225 - 1232.
  • M. D. Sumption, E. W. Collings, N.V. Vo, and S. X. Dou "Eddy Current and Creep-Based Losses in CTFF-Type Bi:2223/Ag Multifilamentary Tapes." in Proc. 16thICEC/ICMC Conference. (1 1997). 1609 - 1612.
  • E.W. Collings, M.D. Sumption, S. Kim, M. Wake, and T. Shintomi "Suppression of Eddy Current Loss in Bare-Copper Rutherford Cables Using Stainless Steel Cores of Various Thicknesses." in Proc. 16thICEC/ICMC Conference. (1 1997). 1767 - 1770.

1995

  • H. Liu, S.X. Dou, M.D. Sumption and E.W. Collings "Microstructure Development and Phase Transformation of Ag-Sheathed Bi:2223 Tapes." in Superconductivity and Superconducting Materials Technologies. (1 1995). 287 - 292.
  • E.W. Collings and M.D. Sumption "Flux Jump Stability During Magnetization of Bulk YBCO and Internal Mechanical Stresses in The Trapped Critical State." in Advances in Superconductivity VII. Tokyo, (1 1995). 605 - 608.
  • M.D. Sumption and E.W. Collings "Bridging in Superconductors." in Critical State in Superconductors. Singapore, (1 1995). 122 - 129.
  • M.D. Sumption, L.R. Motowidlo, G. Ozeryansky, G. Galinsky, and E.W. Collings "Bi:2212 Multifilamentary Round Wires -- Intrinsic and Extrinsic Jc Limitations, Comparisons to Monocrystal Properties." in Advances in Superconductivity VII. Tokyo, (1 1995). 769 - 772.
  • E.W. Collings and M.D. Sumption "A Study of AC Losses in HTSC/Ag Multifilamentary Strands." in Proc. 7th Us-Japan Workshop on High-Tc Superconductors. Tsukuba, (10 1995).

1994

  • M.D. Sumption, Y. Higashida, K. Michisihita, N. Koshizuka, G. Genda, and E.W. Collings "Static and Dynamic Magnetizations of 3-D Textured and Monocrystalline Bi:2212." in Advances In Superconductivity VI. Tokyo, (1 1994). 593 - 596.
  • M.D. Sumption and E.W. Collings "Influence of Cable and Twist Pitch Interaction on Eddy Currents in Multifilamentary Strands Calculated Using an Anisotropic Continuum Model." in Adv. Cryo. Eng.. (1 1994). 579 - 587.
  • M.D. Sumption and E.W. Collings "Field and Length Dependence of the Creep Rate in Proximity Effected Multifilamentary Strands." in Adv. Cryo. Eng.. (1 1994). 799 - 806.
  • H. Kanithi, P. Valaris, W. Weigert, E.W. Collings, and M.D. Sumption "Current Density and Magnetization of Fine Filamentary NbTi Superconductors." in Supercollider 5. (1 1994). 523 - 528.
  • E.W. Collings, M.D. Sumption, S.X. Dou, and H.K. Liu "Effect of Final Cold Rolling on Flux Pinning in Multiply-Processed Bi:2223 Powder-in-Tube Tapes." in Adv. Cryo. Eng.. (1 1994). 161 - 168.
  • M.D. Sumption and E.W. Collings "Stability, Mechanical Considerations, and AC Loss in HTSC Monoliths, Coils, and Wires." in Proc. of the 4th World Congress on Superconductivity, NASA. (1 1994). 138 -
  • M.D. Sumption, K. Salama, T.S. Luhman, M. Strasik, and E.W. Collings "Lower Critical Field Studies of Melt-Textured and Melt-Grown YBa2Cu3O7-X." in Advances in Superconductivity VI. Tokyo, (1 1994). 597 - 600.
  • M.D. Sumption and E.W. Collings "Transverse Resistivities of Cu-Matrix and Cu-Mn Matrix Multifilamentary Strands as Functions of Magnetic Field and Temperature." in Adv. Cryo. Eng.. (1 1994). 807 - 814.

1993

  • D.S. Pyun, M.D. Sumption, E.W. Collings, Y. Higashida, and K. Michishita "Lower Critical Field Determination for a Rod of Float-Zone Processed BiSrCaCuO: 2212/Ag Composite." in Advances in Superconductivity V. Tokyo, (1 1993). 192 - 202.
  • E. W. Collings, M. D. Sumption, Y. Higashida, and K. Michishita "Magnetic and Pinning Force Studies of Three-Dimensionally Textured Float-Zone-Processed Bi-Sr-Ca-Cu-O (2212/Ag)." in Advances in Superconductivity V. Tokyo, (1 1993). 815 - 818.
  • S.X. Dou, H.K. Liu, Y.C. Guo, D.L. Shi, M.D. Sumption, and E.W. Collings "Magnetic Properties and Irreversibility Behavior in Ag-Sheathed Bi-Based Superconducting Wires Fabricated Using a Controlled Melt Procedure." in Advances in Superconductivity V. Tokyo, (1 1993). 761 - 766.
  • M.D. Sumption, T.S. Luhman, M. Strasik, and E.W. Collings "Magnetic and Microstructural Properties of Melt Grown YBa2Cu3O7-X." in Proceeding of the Sixth US-Japan Workshop on Superconductivity. Houston, (12 1993).

1992

  • E.W. Collings, K.R. Marken, M.D. Sumption, J.R. Clem, S.A. Boggs, and M.V. Parish "AC Loss and Dynamic Resistance of a High Tc Strand Carrying a Direct Current in a Transverse AC Magnetic Field." in Adv. Cryo. Eng.. (1 1992). 883 - 891.
  • E.W. Collings, K.R. Marken, Jr., M.D. Sumption, Z. Lian, W. Jingrong, Z. Pinxiang, and W.J. Carr, Jr. "Low Field AC Loss and Lower Critical Field In PMP High-Tc Superconductors." in Adv. Cryo. Eng.. (1 1992). 957 - 964.
  • E. Gregory, H. Liu, G.M. Ozeryansky, M.D. Sumption, K.R. Marken, Jr., and E.W. Collings "Experiments to Improve Materials For SSC Magnets." in Supercollider 4. (1 1992). 923 - 930.
  • E.W. Collings, M.D. Sumption, K.R. Marken, Jr., Zhou Lian, M.V. Parish, and W.J. Carr, Jr. "AC Hysteresis Loss, Lower Critical Field, and Critical Current Density at 77 K in Melt Processed YBa2Cu3O7- Wires and Rods." in Advances in Superconductivity IV. (1 1992). 153 - 157.
  • K.R. Marken, M.D. Sumption, E.W. Collings, and R.M. Scanlan "Magnetization Decay of SSC-Type Strands in Various Short Test Sample Configurations." in Adv. Cryo. Eng.. (1 1992). 715 - 722.
  • M.D. Sumption and E.W. Collings "Temperature and Field Dependence of Short Term Decay and Loss In Multifilamentary Superconductors." in Adv. Cryo. Eng.. (1 1992). 751 - 758.
  • M.D. Sumption and E.W. Collings "Effect of Twist Pitch, Sample Length, and Field Orientation on the Proximity Enhanced Magnetization in Fine Filamentary Multifilamentary Strands." in Adv. Cryo. Eng.. (1 1992). 783 - 790.
  • Z. Lian, W. Jingrong, Z. Pinxiang, M.D. Sumption, K.R. Marken, and E.W. Collings "Magnetic and Pinning Force Studies of Powder-Melt-Processed YBCO Superconductor." in Adv. Cryo. Eng.. (1 1992). 935 - 942.

1991

  • M.D. Sumption, E.W. Collings, M.V. Parish, W. Jingrong, and W.J. Carr, Jr. "Lower Critical Field Determination in Thick Rods of High-Jc Melt-Processed YBCO." in AIP Conf. Proc. on Superconductivity and its Applications. (1 1991). 547 - 556.
  • E.W. Collings, K.R. Marken, Jr., and M.D. Sumption "Magnetization Studies of Multifilamentary Strands for Superconducting Supercollider (SSC) Applications -- Methods of Controlling Proximity-Effect Coupling and Residual Magnetization." in Proceedings of the International Atomic Energy (IAEA) Symposium on Materials for Fusion and High Energy Physics 1989 -- IAEA-TECDOC-594. (1 1991).
  • M.A. Green, E.W. Collings, K.R. Marken, and M.D. Sumption "Ferromagnetic Material in the Superconductor and its Effect on the Magnetization Sextupole and Decapole in the SSC Dipoles at Injection." in Supercollider 3. (1 1991). 365 - 373.

1990

  • E.W. Collings, K.R. Marken, Jr., A.J. Markworth, J.K. Mckoy, M.D. Sumption, E. Gregory and T.S. Kreilick "Critical Field Enhancement Due to Field Penetration in Fine-Filament Superconductors." in Adv. Cryo. Eng.. (1 1990). 255 - 261.
  • E.W. Collings, K.R. Marken Jr., M.D. Sumption, R.J. Loughlan and R.B. Goldfarb "AC Loss Measurements of two Multifilamentary NbTi Composite Strands." in Adv. Cryo. Eng.. (1 1990). 169 - 176.
  • E.W. Collings, K.R. Marken, Jr., M.D. Sumption, E. Gregory and T.S. Kreilick "Magnetic Studies of Proximity-Effect Coupling in Very Closely Spaced Fine-Filament NbTi/CuMn Composites." in Adv. Cryo. Eng.. (1 1990). 231 - 238.
  • E.W. Collings, K.R. Marken, Jr., and M.D. Sumption "Design of Coupled or Uncoupled Multifilamentary SSC-Type Strands with also Zero Retained Magnetization at Fields Near 0.3T." in Adv. Cryo. Eng.. (1 1990). 247 - 254.
  • E.W. Collings, K.R. Marken, Jr., and M.D. Sumption "Design of Multifilamentary Strands For SSC Dipole Magnets." in Supercollider 2. (1 1990). 581 - 592.