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Michael Sumption

  • Professor, Materials Science Engineering
  • 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

  • 2014, "Refinement of Nb3Sn grain size by the generation of ZrO2 precipitates in Nb3Sn wires." APPLIED PHYSICS LETTERS 104, no. 8,
  • 2014, "Experimental determination of the peritectic transition temperature of MgB2 in the Mg-B phase diagram." THERMOCHIMICA ACTA 576,
  • 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 - 6000904.
  • 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,
  • 2014, "Homogeneous carbon doping of magnesium diboride by high-temperature, high-pressure synthesis." APPLIED PHYSICS LETTERS 104, no. 16,
  • 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,
  • 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 - 95-103.
  • 2014, "Stability, Inter-Strand Contact Resistance, and AC Losses in YBCO Roebel Cables." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 24, no. 3,

2013

  • 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,
  • 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,
  • 2013, "Critical Current Density and Current Transfer Length of Multifilamentary MgB2 Strands of Various Design." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 23, no. 3,
  • 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,
  • 2013, "LiFeAs Pnictide Superconductor-A Simple Electrochemical Method of Preparation." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 23, no. 3,
  • 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,
  • 2013, "Specific Heats of Composite Bi2212, Nb3Sn, and MgB2 Wire Conductors." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 23, no. 3,
  • 2013, "A model for phase evolution and volume expansion in tube type Nb3Sn conductors." SUPERCONDUCTOR SCIENCE & TECHNOLOGY 26, no. 12,
  • 2013, "Effects of carbon concentration and filament number on advanced internal Mg infiltration-processed MgB2 strands." SUPERCONDUCTOR SCIENCE & TECHNOLOGY 26, no. 9,
  • 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,

2012

  • 2012, "Critical current densities and n-values of MgB2 strands over a wide range of temperatures and fields." SUPERCONDUCTOR SCIENCE & TECHNOLOGY 25, no. 2,
  • 2012, "The critical current density of advanced internal-Mg-diffusion-processed MgB2 wires." SUPERCONDUCTOR SCIENCE & TECHNOLOGY 25, no. 11,
  • 2012, "A model superconducting helical undulator fabricated using a small filament, tube-type, multifilamentary Nb3Sn wire." SUPERCONDUCTOR SCIENCE & TECHNOLOGY 25, no. 11,
  • 2012, "Critical current density and stability of Tube Type Nb3Sn conductors." CRYOGENICS 52, no. 2-3,
  • 2012, "Effects of cold high pressure densification on Cu sheathed Ba0.6K0.4Fe2As2 superconducting wire." PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 483,
  • 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,

2011

  • 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,
  • 2011, "Carbon doping of MgB2 by toluene and malic-acid-in-toluene." PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 471, no. 3-4,
  • 2011, "AC Magnetization Loss of a YBCO Coated Conductor Measured Using Three Different Techniques." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 21, no. 3,
  • 2011, "Doping effect and flux pinning mechanism of nano-SiC additions in MgB2 strands." SUPERCONDUCTOR SCIENCE & TECHNOLOGY 24, no. 6,
  • 2011, "Transport, Magnetic, and SEM Characterization of a Novel Design Bi-2212 Strand." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 21, no. 3,
  • 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 - 2550-2553.
  • 2011, "Design of Nb3Sn-Based Short Period Model Superconducting Helical Undulator." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 21, no. 3,
  • 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,

2010

  • 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,

2009

  • 2009, "Electrical resistivity, Debye temperature, and connectivity in heavily doped bulk MgB2 superconductors." JOURNAL OF APPLIED PHYSICS 105, no. 10,
  • 2009, "Numerical Modeling of the AC Limiting Properties of Insulated, Conduction Cooled MgB2 Strands." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 19, no. 3,
  • 2009, "A Model Superconducting Helical Undulator Wound Using a Wind and React MgB2 Multifilamentary Wire." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 19, no. 3,
  • 2009, "AC Losses in MgB2 Multifilamentary Strands With Magnetic and Non-Magnetic Sheath Materials." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 19, no. 3,
  • 2009, "Comparison of Critical Current Density in MgB2 With Different Boron Sources and Nano-Particle Dopant Additions." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 19, no. 3,
  • 2009, "Effect of Cable Edge Deformation on RRR and Magnetization of Strands Extracted From Nb3Sn Rutherford-Type Cables." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 19, no. 3,
  • 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,
  • 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 - 065002.
  • 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 - 2588-2592.
  • 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 - 2602.
  • 2009, "Transport AC Loss Reduction in Striated YBCO Coated Conductors by Magnetic Screening." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 19, no. 3,
  • 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 - 2602-2605.
  • 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 - 3270.

2008

  • 2008, "Effects of Rutherford cable parameters on Nb3Sn extracted strand deformation and performance." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 18, no. 2,
  • 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 - 989.
  • 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 TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 18, no. 2,
  • 2008, "Prospects for improving the intrinsic and extrinsic properties of magnesium diboride superconducting strands." SUPERCONDUCTOR SCIENCE & TECHNOLOGY 21, no. 10,
  • 2008, "Influence of a stainless steel core on coupling loss, interstrand contact resistance, and magnetization of an Nb(3)Sn Rutherford cable." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 18, no. 2,
  • 2008, "Characterization of the A15 layer growth and microstructure for varying heat treatments in Nb(3)Sn tube type composites." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 18, no. 2,
  • 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 - 094506.
  • 2008, "Excess Mg addition MgB(2)/Fe wires with enhanced critical current density." JOURNAL OF APPLIED PHYSICS 103, no. 8,

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 - 063909.
  • 2007, "Experimental and theoretical investigation of the diffusion of Sn in internal-tin Nb3Sn." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 17, no. 2,
  • 2007, "Some factors involved in the development of a tubular process for Nb3Sn conductors." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 17, no. 2,
  • 2007, "Thermal analysis of MgB2 formation." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 17, no. 2,
  • 2007, "Composition profiles and upper critical field measurement of internal-Sn and tube-type conductors." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 17, no. 2,
  • 2007, "Influence of Mg/B ratio and SiC doping on microstructure and high field transport J(c) in MgB2 strands." PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 456, no. 1-2,
  • 2007, "Modeling current-field instabilities in high performance Nb(3)Sn strands in moderate field." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 17, no. 2,
  • 2007, "Interstrand contact resistance in Nb3Sn cables under LARP-Type preparation conditions." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 17, no. 2,
  • 2007, "Overview of MgB2 superconductor applications." INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY 4, no. 3,
  • 2007, "Wind and react and react and wind MgB2 solenoid, race track and pancake coils." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 17, no. 2,
  • 2007, "Significant enhancement of H-c2 and H-irr in MgB2+C4H6O5 bulks at a low sintering temperature of 600 degrees C." SUPERCONDUCTOR SCIENCE & TECHNOLOGY 20, no. 8,
  • 2007, "High critical current density multifilamentary MgB2 strands." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 17, no. 2,
  • 2007, "Multifilamentary MgB2-based solenoidal and racetrack coils." PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 458, no. 1-2,
  • 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 - 2814-2817.
  • 2007, "Superconducting properties of SiC doped MgB2 formed below and above Mg's melting point." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 17, no. 2,
  • 2007, "Fault current limiting properties of MgB2 superconducting wires." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 17, no. 2,
  • 2007, "Modeling of transport AC losses in superconducting arrays carrying anti-parallel currents." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 17, no. 2,
  • 2007, "Development of magnesium diboride (MgB2) wires and magnets using in situ strand fabrication method." PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 456, no. 1-2,
  • 2007, "Transport AC losses in YBCO coated conductors." SUPERCONDUCTOR SCIENCE & TECHNOLOGY 20, no. 9,
  • 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 - 29-36.

2006

  • 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." SUPERCONDUCTOR SCIENCE & TECHNOLOGY 19, no. 2,
  • 2006, "The effect of doping level and sintering temperature on J(c)(H) performance in nano-SiC doped and pure MgB2 wires." JOURNAL OF APPLIED PHYSICS 99, no. 8,
  • 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 - 1457-1461.
  • 2006, "Magnetic measurements of interstrand contact resistance in Nb3Sn cables in response to variation of pre-heat-treatment condition." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 16, no. 2,
  • 2006, "Magnesium diboride superconducting strand for accelerator and light source applications." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 16, no. 2,

2005

  • 2005, "High transport critical current density and large H-c2 and H-irr in nanoscale SiC doped MgB2 wires sintered at low temperature." SUPERCONDUCTOR SCIENCE & TECHNOLOGY 18, no. 5,
  • 2005, "Finite element analysis of drawing of multifilamentary wires." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 15, no. 2,
  • 2005, "Flux pinning in RHQT-processed Nb3Al after various transformation heat treatments." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 15, no. 2,
  • 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 - 3766-3769.
  • 2005, "Large upper critical field and irreversibility field in MgB2 wires with SiC additions." APPLIED PHYSICS LETTERS 86, no. 9,
  • 2005, "Solenoidal coils made from monofilamentary and multifilamentary MgB2 strands." SUPERCONDUCTOR SCIENCE & TECHNOLOGY 18, no. 7,
  • 2005, "Transport and magnetic J(c) of MgB2 strands and small helical coils." APPLIED PHYSICS LETTERS 86, no. 10,
  • 2005, "Increases in the irreversibility field and the upper critical field of bulk MgB2 by ZrB2 addition." APPLIED PHYSICS LETTERS 87, no. 4,
  • 2005, "Multifilamentary, in situ route, Cu-stabilized MgB2 strands." SUPERCONDUCTOR SCIENCE & TECHNOLOGY 18, no. 5,
  • 2005, "AC loss in striped (filamentary) YBCO coated conductors leading to designs for high frequencies and field-sweep amplitudes." SUPERCONDUCTOR SCIENCE & TECHNOLOGY 18, no. 1,
  • 2005, "The introduction of titanium into internal-tin Nb3Sn by a variety of procedures." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 15, no. 2,
  • 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 - 2827-2830.
  • 2005, "Ti and Sn diffusion and its influence on phase formation in internal-tin Nb3Sn superconductor strands." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 15, no. 2,
  • 2005, "Microstructural investigation of internal-tin Nb3Sn strands." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 15, no. 2,
  • 2005, "Improvement of critical current density and thermally assisted individual vortex depinning in pulsed-laser-deposited YBa2Cu3O7-delta thin films on SrTiO3 (100) substrate with surface modification by Ag nanodots." JOURNAL OF APPLIED PHYSICS 97, no. 10,
  • 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 - 670-686.
  • 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 - 268-273.
  • 2005, "Magnetization and d(eff) in multifilamentary Nb3Sn strands." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 15, no. 2,
  • 2005, "Thermally assisted flux flow and individual vortex pinning in Bi2Sr2Ca2Cu3O10 single crystals grown by the traveling solvent floating zone technique." JOURNAL OF APPLIED PHYSICS 97, no. 10,
  • 2005, "Effect of various additions on upper critical field and irreversibility field of in-situ MgB2 superconducting bulk material." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 15, no. 2,
  • 2005, "AC losses of coated conductors in perpendicular fields and concepts for twisting." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 15, no. 2,
  • 2005, "MgB2/Cu racetrack coil winding, insulating, and testing." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 15, no. 2,

2004

  • 2004, "AC magnetic losses in Bi-2223/Ag tapes with different aspect ratios." PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 412,
  • 2004, "Geometry dependence of magnetic and transport AC losses in Bi-2223/Ag tapes with different aspect ratios." SUPERCONDUCTOR SCIENCE & TECHNOLOGY 17, no. 10,
  • 2004, "Analysis of magnetization, AC loss, and d(eff) for various internal-Sn based Nb3Sn multifilamentary strands with and without subelement splitting." CRYOGENICS 44, no. 10,
  • 2004, "Influence of heat-treatment schedules on the transport current densities of long and short segments of superconducting MgB2 wire." PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 407, no. 3-4,
  • 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 - 158-162.
  • 2004, "Stability and instability in high performance (metastable) composite strands during I-V measurement." PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 401, no. 1-4,
  • 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 - 6550-6556.
  • 2004, "Irreversibility field and flux pinning in MgB2 with and without SiC additions." SUPERCONDUCTOR SCIENCE & TECHNOLOGY 17, no. 10,
  • 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 - 66-74.
  • 2004, "Addition of nanoparticle dispersions to enhance flux pinning of the YBa2Cu3O7-x superconductor." NATURE 430, no. 7002,
  • 2004, "Magnesium diboride superconducting RF resonant cavities for high energy particle acceleration." SUPERCONDUCTOR SCIENCE & TECHNOLOGY 17, no. 9,

2003

  • 2003, "Fabrication and properties of PIT Nb-Al and Nb-Sn based superconductors." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 13, no. 2,
  • 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 - 2618-2623.
  • 2003, "Nb3Al strand processing, transport properties, and cabling." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 13, no. 2,
  • 2003, "Hysteretic loss vs. filament width in thin YBCO films near the penetration field." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 13, no. 2,
  • 2003, "Finite element modeling of hydrostatic extrusion for mono-core superconductor billets." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 13, no. 2,
  • 2003, "Stability and flux jumping of internal-Sn, Nb3Sn conductors (and a model system MgB2)." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 13, no. 2,
  • 2003, "Nb3Sn wires synthesized by rapid-heating/quenching process of rod-in-tube wire precursors." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 13, no. 2,
  • 2003, "Influence of transformation heat treatment on microstructure and defects in RHQT-processed Nb3Al." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 13, no. 2,
  • 2003, "Continuous- and batch-processed MgB2/Fe strands - transport and magnetic properties." PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 386,
  • 2003, "Temperature and field dependence of the effective matrix resistivity of Bi : 2223/Ag composites." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 13, no. 2,
  • 2003, "Phase stability at high temperatures in the Nb-Al system." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 13, no. 2,

2002

  • 2002, "Reduction and elimination of external-field AC loss in MgB2/Fe wire by in situ magnetic shielding." PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 378,
  • 2002, "Influence of rapid heating condition on superconducting properties in transformed jelly-roll Nb3Al multifilamentary wire." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 12, no. 1,
  • 2002, "Fabrication and critical current density in 16-filament stainless steel/Fe/MgB2 square wire." SOLID STATE COMMUNICATIONS 124, no. 1-2,
  • 2002, "Real and apparent loss suppression in MgB2 superconducting composites." PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 382, no. 1,
  • 2002, "Transport and magnetic properties of continuously processed MgB2." RARE METAL MATERIALS AND ENGINEERING 31, no. 6,
  • 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 - 52-56.

2001

  • 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 - 733-744.
  • 2001, "Static and dynamic parasitic magnetizations and their control in superconducting accelerator dipoles." PHYSICA C 354, no. 1-4,
  • 2001, "Coupling loss and contact resistance in cored stabrite cables - Influences of compaction and variation of core width." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 11, no. 1,
  • 2001, "Analysis of eddy current AC loss for untwisted, multifilamentary superconducting composites with various aspect ratios." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 11, no. 1,
  • 2001, "Ac loss and interstrand contact resistance in bare and coated NbTi/Cu Rutherford cables with cores." SUPERCONDUCTOR SCIENCE & TECHNOLOGY 14, no. 11,
  • 2001, "Transverse resistivities in untwisted HTSC tapes at 4.2, 30, and 60 K." PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 357,
  • 2001, "High-transport critical current density above 30 K in pure Fe-clad MgB2 tape." PHYSICA C 361, no. 2,
  • 2001, "Superconducting properties and rapid heating condition in transformed jelly-roll Nb3Al multifilamentary wires as a function of maximum ohmic-heating temperature." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 11, no. 1,
  • 2001, "Magnetization as a critical defining parameter for strand in precision dipole applications - Implications for field error and F-J stability." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 11, no. 1,
  • 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 - 3980-3983.
  • 2001, "Flux jumping and a bulk-to-granular transition in the magnetization of a compacted and sintered MgB2 superconductor." PHYSICA C 361, no. 2,

2000

  • 2000, "AC loss and contact resistance in copper-stabilized Nb3Al Rutherford cables with and without a stainless steel core." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 10, no. 1,
  • 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, no. 1-4,
  • 2000, "Extraction of matrix resistivity from short samples of superconducting multifilamentary composite tapes: influence of strand twist and internal structure." PHYSICA C 335, no. 1-4,

1999

  • 1999, "Influence of strand surface condition on interstrand contact resistance and coupling loss in NbTi-wound Rutherford cables." CRYOGENICS 39, no. 3,
  • 1999, "Process development and microstructures of Nb3Al precursor strand for reel-to-reel production." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 9, no. 2,
  • 1999, "Short-sample quenching of Nb3Al precursor strand in support of reel-to-reel process development." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 9, no. 2,
  • 1999, "Low coupling loss core-strengthened Bi : 2212/Ag Rutherford cables." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 9, no. 2,
  • 1999, "Bi : 2212/Ag-based Rutherford cables: production, processing and properties." SUPERCONDUCTOR SCIENCE & TECHNOLOGY 12, no. 2,
  • M.D. Sumption and S. Takacs, 1999, "Flux Pinning in the Weak Layers of Superconducting Heterogeneous Structures." Physica C 316, 129-151 - 129-151.
  • 1999, "Low field flux jumping in high performance multifilamentary Nb3Al and Nb3Sn composite strands." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 9, no. 2,
  • 1999, "Core-suppressed AC loss and strand-moderated contact resistance in a Nb3Sn Rutherford cable." CRYOGENICS 39, no. 1,

1998

  • 1998, "Coupling current control in Rutherford cables wound with NbTi, Nb3Sn, and Bi : 2212/Ag." PHYSICA C 310, no. 1-4,
  • 1998, "AC loss properties of some Bi : 2212/Ag Rutherford cables and a comparison with those of cables wound with NbTi and Nb3Sn." CRYOGENICS 38, no. 12,
  • 1998, "Modelling of M-H loop anomalies in synergistically pinned, heterogeneous, composite superconductors." PHYSICA C 306, no. 3-4,

1997

  • 1997, "Second VAMAS ac loss measurement intercomparison: Magnetization measurement of low-frequency (hysteretic) ac loss in NbTi multifilamentary strands." CRYOGENICS 37, no. 1,
  • 1997, "Suppression and control of coupling currents in stabrite-coated Rutherford cable with cores of various materials and thicknesses." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 7, no. 2,
  • 1997, "Anomalous magnetic properties and proximity effect coupling in VAMAS strands." CRYOGENICS 37, no. 3,
  • 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 - 1117-1121.
  • 1997, "Determination of the true (or potential) transport-J(c) of a multifilamentary Bi : HTSC/Ag strand in the presence of bridging and generalized sausaging." PHYSICA C 291, no. 3-4,
  • 1997, "Analysis of optically and magnetically determined bridging in internal-tin process Nb3Sn strands." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 7, no. 2,

1996

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

1995

  • 1995, "Dual Barrier for the Suppression of Residual Resistance Degradation in Chrome-Plated Niobium-Tin Strands." IEEE Transactions on Applied Superconductivity 5, no. 2,
  • 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 - 1162.
  • 1995, "CONTACT RESISTANCE AND CABLE LOSS MEASUREMENTS OF COATED STRANDS AND CABLES WOUND FROM THEM." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 5, no. 2,
  • 1995, "REPORT ON THE 2ND VAMAS AC LOSS ROUND-ROBIN - MAGNETIZATION MEASUREMENT OF LOW-FREQUENCY HYSTERETIC LOSS." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 5, no. 2,
  • 1995, "MATERIALS SELECTION FOR FERROMAGNETIC COMPENSATION IN ACCELERATOR MAGNETS." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 5, no. 2,
  • 1995, "Stability and AC losses in HTSC/Ag multifilamentary strands." APPLIED SUPERCONDUCTIVITY 3, no. 11-12,
  • 1995, "A comparison of ac loss, magnetization, H-r and U-o for Bi:2212 wires, crystals and melt grown samples." APPLIED SUPERCONDUCTIVITY 3, no. 7-10,
  • 1995, "CHROMIUM DIFFUSION INTO PLATED NB3SN STRANDS DEDUCED FROM ELECTRICAL-RESISTIVITY MEASUREMENT." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 5, no. 2,

1994

  • 1994, "INFLUENCE OF NI ADDITIONS ON THE LOW-TEMPERATURE MAGNETIC-PROPERTIES OF A CU-1-PERCENT MN ALLOY." JOURNAL OF APPLIED PHYSICS 76, no. 11,
  • M.D. Sumption, 1994, "Calculation of the Magnetization of Anisotropic Superconductors with Cylindrical Geometry in Transverse Fields." Applied Superconductivity 2, 41-46 - 41-46.
  • 1994, "INFLUENCE OF TWIST PITCH AND SAMPLE LENGTH ON PROXIMITY EFFECT COUPLING IN MULTIFILAMENTARY COMPOSITES DESCRIBED IN TERMS OF A FIELD INDEPENDENT, 2 CURRENT REGION MODEL." CRYOGENICS 34, no. 6,
  • 1994, "CREEP IN SUPERCONDUCTIVE COMPOSITES WITH ANISOTROPIC PINNING POTENTIALS." JOURNAL OF APPLIED PHYSICS 76, no. 8,

1993

  • 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 - 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 - 662-664.
  • 1993, "TRANSVERSE AND LONGITUDINAL RESISTIVITIES IN NBTI MULTIFILAMENTARY STRANDS WITH CU AND CUMN MATRICES." IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, VOL 3, NO 1, MARCH 1993 PTS 2-4

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 - 585-588.
  • 1992, "HYSTERETIC METHOD OF LOWER CRITICAL-FIELD DETERMINATION IN HIGH-TC SUPERCONDUCTORS." SUPERCONDUCTOR SCIENCE & TECHNOLOGY 5,
  • 1992, "ADVANCED STRAND DESIGN FOR PRECISION DC-FIELD AND RAMP-FIELD MAGNETS." IEEE TRANSACTIONS ON MAGNETICS 28, no. 1,

1991

  • 1991, "EDDY-CURRENT EFFECTS IN TWISTED AND WOUND SSC STRANDS." IEEE TRANSACTIONS ON MAGNETICS 27, no. 2,
  • 1991, "DESIGN, FABRICATION, AND PROPERTIES OF MAGNETICALLY COMPENSATED SSC STRANDS." IEEE TRANSACTIONS ON MAGNETICS 27, no. 2,
  • 1991, "HYSTERETIC SURFACE EFFECTS IN MULTIFILAMENTARY NBTI WIRES EXPOSED TO TRANSVERSE APPLIED FIELDS." IEEE TRANSACTIONS ON MAGNETICS 27, no. 2,
  • 1991, "POSITION AND AMPLITUDE OF PROXIMITY EFFECT PEAKS IN THE MAGNETIZATION CURVES OF NBTI/CU AND NBTI/CUMN MULTIFILAMENTARY STRANDS." IEEE TRANSACTIONS ON MAGNETICS 27, no. 2,

1990

  • 1990, "INTERFILAMENT AND INTRAFILAMENT MAGNETIZATIONS IN FINE-FILAMENTARY COMPOSITE STRANDS FOR PRECISION-DIPOLE MAGNET APPLICATIONS." CRYOGENICS 30,

Unknown

  • "Coupling Current Control in Stabrite-Coated Nbti Rutherford Cables by Varying the Width of a Stainless Steel Core."

Presentations

  • "Stability in Nb3Sn -- Explicit Functional Dependence of Js on deff and RRR, Local RRR Degradation, Adiabatic considerations." 2007,
  • "Phase Formation and Performance Potential in Tube-Type Nb3Sn." 2007,
  • "MgB2 Superconducting Strands: Bc2, Birr, Doping, Connectivity, Phase Formation, Flux Pinning." 2007,
  • "Effects of Simultaneous Titanium and Tantalum Additions on The Properties of Internal - Tin Type Nb3Sn Strands." 2007,
  • "AC Loss in YBCO and MgB2 Conductors: External Field loss, Transport losses, Influence of Magnetic Elements and Dynamic Resistance." 2007,
  • "YBCO Loss Measurements and Analysis for AFRL needs." 2007,
  • "AC Loss for YBCO and MgB2 for Various Applications – i.e. How bad is YBCO? When is (round) MgB2 needed?." 2007,
  • "Superconductivity, Superconductors, and Energy Needs." 2009,
  • "OSU-FNAL Collaboration Presentation." 2009,
  • "Homogeneity and Connectivity of Doped MgB2 Bulks and Strands as Probed by Cp and Current Transport." 2009,
  • "Losses in YBCO Strands/Cables and Quench in YBCO Coils." 2009,
  • "NbAl and MgB2 Development in the US." 2002,
  • "Magnesium Diboride Conductor Development at Hyper Tech Research." 2003,
  • "AC Losses in YBCO Conductors: a High Frequency Perspective." 2003,
  • "Proposal for a Round Robin for AC Loss Measurements in YBCO Coated Conductors." 2003,
  • "MgB2 Applications in the US." 2004,
  • "YBCO at High Frequencies for Air Force Applications." 2005,
  • "AC Loss for YBCO and MgB2." 2007,
  • "AC Loss For YBCO and MgB2 for Various Applications – i.e. How bad is YBCO? When is (round) MgB2 needed?." 2007,
  • "Stability in Nb3Sn -- Explicit Functional Dependence of Js on deff and RRR, Local RRR Degradation, Adiabatic considerations." 2008,
  • "MgB2 Superconducting Strands: Bc2, Birr, Doping, Connectivity, Phase Formation, Flux Pinning." 2008,
  • "Thermal diffusion and Quench Propagation in YBCO Coils with ZnO-Based Insulations." 2008,
  • "Transport, flux pinning, and connectivity in MgB2." 2008,
  • "Influence of Artificial Nanostructure Pinning on the Critical Current Density in YBa2Cu3O7-x Thin Films." 2009,
  • "Flux Pinning, Homogeneity, and Connectivity of Doped MgB2 Bulks and Strands." 2009,
  • "Model Superconducting Helical Undulators Wound from Wind and React MgB2 and Nb3Sn Conductors." 2009,
  • "MgB2 Materials and Applications." 2009,
  • "Comparisons of Sn-Stoichiometry and Performance in RIT and Tube Conductors, Influence of Sn Level and Ti." 2009,
  • "Stability in Nb3Sn Conductors; Magnetic and Self Field Instability Considerations at 4 K And 2 K." 2009,
  • "A Mechanical Alloying Route for Nb-Sn and Nb-Al Superconductors." 2001,
  • "Progress on Nb-Al in the US." 2001,
  • "Instability Measurements in High Performance Nb3Sn." 2004,
  • "YBCO at High Frequencies for Air Force Applications." 2006,
  • "A15 Superconductors via a Mechanical Alloying Route." 2002,
  • "Progress in Nb-Al in the US." 2002,
  • "Magnetization Measurements of HEP Nb3Sn Strands." 2002,
  • "Stabilities and Instabilities in High Current A15 strands." 2003,
  • "deff in Nb3Sn Strands." 2003,
  • "MgB2 at High Fields." 2005,
  • "MgB2; Niche Application or New Conductor." 2005,
  • "Stability and Instability in Nb3Sn Conductors." 2005,
  • "MgB2 Conductor Development." 2005,
  • "Losses in YBCO Conductors." 2005,
  • "AC Loss For YBCO Coated Conductor In Utility Power Applications." 2006,
  • "Stability in High Performance Nb3Sn." 2006,
  • "Phase formation in Tube-Type Nb3Sn Conductors." 2006,
  • "Loss and Stability Issues for YBCO and MgB2 in Motors/Generators -- a Simplified Look." 2009,

Papers in Proceedings

2008

  • "AC transport current and applied magnetic field losses in MgB2 multifilamentary strands with nonmagnetic sheath materials." in Joint Cryogenic Engineering Conference/International Cryogenic Materials Conference. (1 2008).
  • "Measurements of RRR variation in strands extracted from Nb3Sn-type Rutherford cables." in Joint Cryogenic Engineering Conference/International Cryogenic Materials Conference. (1 2008).
  • "Effects of simultaneous titanium and tantalum additions on the properties of internal tin type Nb3Sn strands." in Joint Cryogenic Engineering Conference/International Cryogenic Materials Conference. (1 2008).
  • "Wind and react mgb(2) rotor coils." in Joint Cryogenic Engineering Conference/International Cryogenic Materials Conference. (1 2008).
  • "Changes in microstructure and transport properties of magnesium diboride strands through hot uniaxial pressing." in Joint Cryogenic Engineering Conference/International Cryogenic Materials Conference. (1 2008).
  • "Effects of initial Sn/Cu ratio and heat treatment on the microstructure and microchemistry of Cu-Nb-Sn-Ta tube type composites." in Joint Cryogenic Engineering Conference/International Cryogenic Materials Conference. (1 2008).
  • "AC losses in YBCO coated conductors with different substrates and different stabilizing layers." in Joint Cryogenic Engineering Conference/International Cryogenic Materials Conference. (1 2008).
  • 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 - 012226.
  • 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 - 252.
  • "Measurements of AC loss in cored Nb3Sn Rutherford cables: Interstrand contact resistance as function of core width." in Joint Cryogenic Engineering Conference/International Cryogenic Materials Conference. (1 2008).

2006

  • "Titanium diffusion and phase formation in tube-type rod-in-tube and internal-tin Nb3Sn strands." in International Cryogenic Materials Conference. (1 2006).
  • "Various methods of reducing AC losses and improving stability of internal-tin Nb3Sn superconductors." in International Cryogenic Materials Conference. (1 2006).
  • "Influence of pre-heat-treatmeent condition on interstrand contact resistance in Nb3Sn rutherford cables by calorimetric AC-loss measurement." in International Cryogenic Materials Conference. (1 2006).
  • "Investigation of bonding generation during the drawing of multifilamentary wires." in International Cryogenic Materials Conference. (1 2006).
  • "Solenoid and racetrack coils wound from MgB2 strand." in International Cryogenic Materials Conference. (1 2006).
  • "Characterization of Ti and Ta influence on grain shape and size, as well as transport properties of conductors fabricated by the internal-Sn processa." in International Cryogenic Materials Conference. (1 2006).
  • "AC loss (50-200 Hz) in YBCO conductors with filaments and Cu stabilization." in International Cryogenic Materials Conference. (1 2006).
  • 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 - 425.
  • 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 - 851.

2004

  • "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 Joint Cryogenic Engineering Conference/International Cryogenic Materials Conference (CEC-ICMC). (1 2004).
  • "Flux jump instability of internal-tin strands and cable sections." in Joint Cryogenic Engineering Conference/International Cryogenic Materials Conference (CEC-ICMC). (1 2004).
  • "Nb3Al development for HEP applications." in Joint Cryogenic Engineering Conference/International Cryogenic Materials Conference (CEC-ICMC). (1 2004).
  • 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 - 836-843.
  • "Finite element analysis of extrusion of multifilamentary superconductor precursor." in Joint Cryogenic Engineering Conference/International Cryogenic Materials Conference (CEC-ICMC). (1 2004).
  • 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 - 797-804.
  • "A sol-gel approach to the insulation of Rutherford cables." in Joint Cryogenic Engineering Conference/International Cryogenic Materials Conference (CEC-ICMC). (1 2004).
  • 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 - 533-540.
  • "Attempts to reduce a.c. losses in high current density internal-tin Nb3Sn." in Joint Cryogenic Engineering Conference/International Cryogenic Materials Conference (CEC-ICMC). (1 2004).
  • "Critical current density and bulk pinning force in RHQT-processed niobium-aluminum superconductors." in Joint Cryogenic Engineering Conference/International Cryogenic Materials Conference (CEC-ICMC). (1 2004).

2002

  • "External stabilization of Nb3Sn Rutherford cables - AC loss and contact resistance." in Joint Cryogenic Engineering Conference/International Cryogenic Materials Conference. (1 2002).
  • 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).
  • "Phase formation during the rapid-heating step of rhqt Nb3Al superconductor processing." in Joint Cryogenic Engineering Conference/International Cryogenic Materials Conference. (1 2002).
  • "Fabrication and phase-transformation issues in CTFF-MA processed A15 superconductors." in Joint Cryogenic Engineering Conference/International Cryogenic Materials Conference. (1 2002).
  • "Processing-superconducting property correlation studies in RHQT-processed Niobium-Aluminum superconductors." in Joint Cryogenic Engineering Conference/International Cryogenic Materials Conference. (1 2002).
  • "Suppression of AC (hysteretic) loss by magnetic shielding of MgB2/Fe superconductors: The pseudo-Meissner effect." in Joint Cryogenic Engineering Conference/International Cryogenic Materials Conference. (1 2002).
  • "Development of multifilament jelly-roll NbAl precursor for Melt-Quench processing." in Joint Cryogenic Engineering Conference/International Cryogenic Materials Conference. (1 2002).

2000

  • 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 - 831-834.
  • "Magnetic measurements of AC loss in short multifilamentary tapes." in 12th International Symposium on Superconductivity (ISS 99). (1 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 - 1011-1018.

1998

  • 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. (4 1998).
  • "Factors controlling the onset of proximity effect coupling (PEC) and the influence of pinning-assisted PEC on M-H loop asymmetry multifilamentary composites." in 12th International Cryogenic Materials Conference (ICMC). (1 1998).
  • "Mechano-synthesis of niobium-aluminum superconductors for high field applications." in International Symposium on Metastable, Mechanically Alloyed and Nanocrystalline Materials (ISMANAM 97). (1 1998).
  • "AC loss and contact resistance in Nb3Sn Rutherford cables with and without a stainless steel core." in 12th International Cryogenic Materials Conference (ICMC). (1 1998).
  • 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).
  • "Critical currents and superconducting boundary effects in S-N-S multifilamentary composites." in 12th International Cryogenic Materials Conference (ICMC). (1 1998).

1997

  • 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 - 1225-1232.
  • 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 - 1767-1770.
  • 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 - 1303-1311.
  • 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 - 1175-1182.
  • 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 - 1609-1612.
  • M.D. Sumption and S. Takács "Critical Current Densities in Heterogeneous Superconductors Determined From Magnetization Measurements." in Inst. Phys. Conf. Ser.. (1 1997). 913 - 913.
  • 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 - 573-580.

1995

  • M.D. Sumption and E.W. Collings "Bridging in Superconductors." in Critical State in Superconductors. (1 1995). 122-129 - 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. (1 1995). 769-772 - 769-772.
  • 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 - 287-292.
  • 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. (10 1995).
  • 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. (1 1995). 605-608 - 605-608.

1994

  • "TRANSVERSE RESISTIVITIES OF CU-MATRIX AND CUMN-MATRIX MULTIFILAMENTARY STRANDS AS FUNCTIONS OF MAGNETIC-FIELD AND TEMPERATURE." in 10th International Cryogenic Materials Conference (ICMC)/Cryogenic Engineering Conference (CEC). (1 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. (1 1994). 593-596 - 593-596.
  • 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 - 138.
  • "EFFECT OF FINAL COLD-ROLLING ON FLUX-PINNING IN MULTIPLY-PROCESSED BI-2223 POWDER-IN-TUBE TAPES." in 10th International Cryogenic Materials Conference (ICMC)/Cryogenic Engineering Conference (CEC). (1 1994).
  • "FIELD AND LENGTH DEPENDENCE OF THE CREEP RATE IN PROXIMITY EFFECTED MULTIFILAMENTARY STRANDS." in 10th International Cryogenic Materials Conference (ICMC)/Cryogenic Engineering Conference (CEC). (1 1994).
  • 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. (1 1994). 597-600 - 597-600.
  • "INFLUENCE OF CABLE AND TWIST PITCH INTERACTIONS ON EDDY CURRENTS IN MULTIFILAMENTARY STRANDS CALCULATED USING AN ANISOTROPIC CONTINUUM MODEL." in 10th International Cryogenic Materials Conference (ICMC)/Cryogenic Engineering Conference (CEC). (1 1994).
  • "CURRENT-DENSITY AND MAGNETIZATION OF THE FINE FILAMENTARY NBTI SUPERCONDUCTORS." in 5th International Industrial Symposium on the Super Collider. (1 1994).

1993

  • 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. (1 1993). 761-766 - 761-766.
  • 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. (1 1993). 192-202 - 192-202.
  • 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. (12 1993).
  • 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. (1 1993). 815-818 - 815-818.

1992

  • "EFFECT OF TWIST PITCH, SAMPLE LENGTH, AND FIELD ORIENTATION ON THE PROXIMITY EFFECT ENHANCED MAGNETIZATION OF FINE FILAMENTARY MULTIFILAMENTARY STRANDS." in 9TH INTERNATIONAL CRYOGENIC MATERIALS CONF / CRYOGENIC ENGINEERING CONF. (1 1992).
  • "AC LOSS AND DYNAMIC RESISTANCE OF A HIGH-TC STRAND CARRYING A DIRECT-CURRENT IN A TRANSVERSE AC MAGNETIC-FIELD." in 9TH INTERNATIONAL CRYOGENIC MATERIALS CONF / CRYOGENIC ENGINEERING CONF. (1 1992).
  • 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 - 751-758.
  • 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 - 153-157.
  • "LOW FIELD AC LOSS AND LOWER CRITICAL-FIELD IN PMP HIGH-TC SUPERCONDUCTORS." in 9TH INTERNATIONAL CRYOGENIC MATERIALS CONF / CRYOGENIC ENGINEERING CONF. (1 1992).
  • "EXPERIMENTS TO IMPROVE MATERIALS FOR SSC MAGNETS." in 4TH ANNUAL INTERNATIONAL INDUSTRIAL SYMP ON THE SUPER COLLIDER ( IISSC ) : DISCOVERING THE FUTURE. (1 1992).
  • "MAGNETIC AND PINNING FORCE STUDIES OF POWDER-MELT-PROCESSED YBCO SUPERCONDUCTOR." in 9TH INTERNATIONAL CRYOGENIC MATERIALS CONF / CRYOGENIC ENGINEERING CONF. (1 1992).
  • "MAGNETIZATION DECAY OF SSC-TYPE STRANDS IN VARIOUS SHORT TEST SAMPLE CONFIGURATIONS." in 9TH INTERNATIONAL CRYOGENIC MATERIALS CONF / CRYOGENIC ENGINEERING CONF. (1 1992).

1991

  • "LOWER CRITICAL-FIELD DETERMINATION IN THICK RODS OF HIGH-JC MELT-PROCESSED YBCO." in 5TH ANNUAL CONF ON SUPERCONDUCTIVITY AND APPLICATIONS. (1 1991).
  • 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 - 365-373.

1990

  • "AC loss measurements of two multifilamentary NbTi composite strands." (12 1990).
  • "Design of coupled or uncoupled multifilamentary SSC-type strands with almost zero retained magnetization at fields near 0.3 T." (12 1990).
  • "Magnetic studies of proximity-effect coupling in a very closely spaced fine-filament NbTi/CuMn composite superconductor." (12 1990).
  • "Critical field enhancement due to field penetration in fine-filament superconductors." (12 1990).
  • 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 - 581-592.