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Advances in
Cryogenic Engineering
Materials VOLUME 44, PART A
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An International Cryogenic Materials Conference Publication
Advances in Cryogenic Engineering
Materials VOLUME 44, PART A
Edited by
U. Balu Balachandran Argonne National Labaratory
Argonne, lllinois
K. Ted Hartwig Texas A&M University College Station, Texas
William H. Warnes Oregon State University
Corvallis, Oregon
Donald G. Gubser Naval Research Labaratory
Washington, D.C.
Richard P. Reed Cryogenic Materials, lnc.
Boulder, Colorado
Victoria A. Bardos Synchrony
Bordentown, New Jersey
SPRINGER SCIENCE+BUSINESS MEDIA, LLC
The Library of Congress cataloged the first volume of this title as follows:
Advances in cryogenic engineering, v . 1-New York, Cryogenic Engineering Conference; distributed by Plenum Press, 1960-
v . illus., diagrs. 26 cm. Vols. 1- are reprints of the Proceedings of the Cryogenic Engineering
Conference, 1954-Editor: 1960- K. D. Timmerhaus
1. Low temperature engineering-Congresses. ed. 11. Cryogenic Engineering Conference
TP490.A3 660.29368
1. Timmerhaus, K. D.,
57-35598
Proceedings of the Twelfth International Cryogenic Materials Conference (ICMC), held July 28-August 1, 1997, in Portland, Oregon
ISBN 978-1-4757-9058-0 ISBN 978-1-4757-9056-6 (eBook) DOI 10.1007/978-1-4757-9056-6
© 1998 Springer Science+Business Media New York Originally published by Plenum Press, New York in 1998
Softcover reprint of the hardcover 1st edition 1998
http ://www.plenum.com
Ali rights reserved
10987654321
No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form ar by any means, electronic, mechanical, photocopying, microfilming, recording, or
otherwise, without written permission from the Publisher
CONTENTS
PREFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . XIX
EDITORIAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . XXI
BEST PAPER AWARDS ..... ... .......... ... ........................... xxiii
1997 INTERNATIONAL CRYOGENICS MATERIALS CONFERENCE BOARD OF DIRECTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . XXV
A-sTRUCTURAL AND CRYOCOOLERMATERIALS
Nickel-Base Alloys: Mechanical & Physical Properties
EFFECTS OF AN 8 TESLA MAGNETIC FIELDON MECHANICAL PROPERTIES OF INCOLOY 908 ALLOY AT 4 K ....... . .. .. .......... .. .
T. Kadota, T. Tanaka, Y. Kohno, H. Nakajima, H. Tsuji, and K. Shibata
AVOIDANCE METHOD STUDY FüR SAGBO CRACKING DURING HEAT TREATMENT OF A ITER CS MODEL COIL CONDUCTOR USING INCOLOY 908 JACKET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
T. Kato, K. Hamada, K. Yamamoto, I. Watanabe, K. Ishio, T. Ando, H. Tsuji, T. Abe, K. Kikuchi, N. Minakawa, M. Tsuchiya, M. Tsubota, Y. Katayama, S. lkeda, H. Ogata, T. Fujioka, and A. Osaki
MECHANICAL INVESTIGATIONS ON AGED STAINLESS STEEL AND INCOLOY 908 MATERIALS AT 4.2 K AND 7 K . . . . . . . . . . . . . . . . . . . . . . . . . . 17
A. Nyilas, B. Obst, and D. R. Harries
LOW-TEMPERATURE TENSILE PROPERTIES OF Fe-Ni ALLOYS..... . ...... 25 R. P. Reed
NEW FAlLURE PREDICTION MODEL FüR A Ni-Fe SUPERALLOY SHEATH OF SUPERCONDUCTING FUSION MAGNETS . . . . . . . . . . . . . . . . . . . . . . . . . . 33
J. H. Kim, I. S. Hwang, and R. L. Tobler
A STUDY OF FRACTURE TOUGHNESS AND MICROSTRUCTURES IN THE WELD HEAT-AFFECTED ZONE OF QLT-PROCESSED 9% Ni STEEL . . . . . . . 41
J. Jang, Y. Yang, W. Kim, and D. Kwon
V
FATIGUE LIFE ESTIMATION OF ITER CONDUITS AT 4 K . . . . . . . . . . . . . . . . . . 49 J. Feng
FRACTURE TOUGHNESS AND TENSILE BEHAVIOR OF INCOLOY 908.. . ... 57 E.-H. Han, R. J. Hughes, H. Au, R. G. Ballinger, D. Grundy, and P. Stahle
Austenitic Alloys & Steels: Mechanical & Physical Properties
SELECTION OF TOKAMAK TOROIDAL FJELD COIL CASE STRUCTURAL MATERIALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
F. M.G. Wong and N. A. Mitchell
TRIAL FABRICATION OF HEAVY SECTION BASE METALS AND WELDED JOINTS FOR ITER TF COIL......... .. .. .. ........ . .. ... ..... ..... .... 73
K. lshio, H. Nakajima, Y. Nunoya, Y. Miura, T. Kawasaki, and H. Tsuji
FATIGUE CRACK GROWTH RATE OF SUS 316 AND WELD JOINT WITH NATURAL CRACK AT 7 K . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
A. Nishimura, J. Yamamoto, and A. Nyilas
WELDING CONSUMABLE DEVELOPMENT FORA CRYOGENIC (4 K) APPLICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
S. F. Kane, T. A. Siewert, C. N. McCowan, and A. L. Farland
NONEQUILIBRIUM SEGREGATION AND FRACTURE MECHANISM OF HIGH-MANGANESE CRYOGENIC STEELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
K. S. Xue, D. Y. Sun, Z. R. Xu, B. Wang, J. Li, J. Q. Shen, and W. Wang
TECHNIQUES FOR AUTOMATIC AUTOGENOUS WELDING OF LOW SULFUR 316LN BEAM TUBE ............ . .... . ....... . ........... . ... 105
S. F. Kane and A. L. Farland
NONEQUILIBRIUM SEGREGATION OF MANGANESE IN HIGH-MANGANESE CRYOGENIC STEELS ... . ........... . . . ..... .. . ...... . . 113
D. Y. Sun, K. S. Xue, Z. R. Xu, B. Wang, J. J. Zhang, J. F. Yi, and W. Wang
A STUDY OF MECHANICAL PROPERTIES AND WELDABILITY IN WELDMENT OF COLD-ROLLED Fe-19Mn-5.5Cr-3.5AI-0.25C ALLOY AT CRYOGENIC TEMPERATURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Y. P. Kim, W. S. Kim, and S. H. Hong
STRENGTH, DUCTILITY/TOUGHNESS AND FINE-BLANKING OF NONMAGNETIC HIGH Mn STEEL AND ITS ACCELERATOR SUPERCONDUCTING MAGNETS APPLICATION .... .... .... . .......... . 129
K. Nohara, U. Nishiike, K. Kobayashi, and T. Akita
EFFECTS OF STRESS LEVEL IN PRE-CRACKING ON FRACTURE TOUGHNESS OF SUS 304L STEEL IN AN 8 TESLA MAGNETIC FJELD AT 4K . .. ... . ..... .. ... . . . ...... . .. . . . .... . ... . .... ... .. . . .. .... ... .. . 137
T. Tanaka, T. Kadota, Y. Kohno, and K. Shibata
FRACTURE TOUGHNESS EVALUATION OF A ROUND BAR WITH A CIRCUMFERENTIAL NOTCH AT CRYOGENIC TEMPERATURE . . . . . . . . . . . 145
A. Nishimura, J. Yamamoto, and A. Nyilas
vi
FRACTURE MECHANICS INVESTIGATIONS AT 7 K OF STRUCTURAL MATERIALS WITH EDM NOTCHED ROUND AND DOUBLE EDGED-BARS 153
A. Nyilas, B. Obst, and A. Nishimura
DETERMINING THE AMOUNT OF c-MARTENSITE DURING LOWTEMPERATURE DEFORMATION BY A RESISTOMETRIC TECHNIQUE . . . . 161
M. M. Chemick and L. V Skibina
Insolation Materials & Coatings: Development, Properties, & Testing
CRYOMECHANICS AND DOUBLE-NOICH INTERLAMINAR SHEAR STRENGTH OF G-1 0 Cr GLASS-CLOTHJEPOXY LAMINATES . . . . . . . . . . . . . 167
Y. Shindo, R. Wang, K. Horiguchi, and S. Ueda
DEVELOPMENT OF U.S./ITER CS MODEL COIL TURN INSOLATION . . . . . . . 175 R. P. Reed, P. E. Fabian, and J. B. Schutz
EFFECT OF APPLIED STRESS DURING IRRADIATION AT 5 K ON THE SHEAR/COMPRESSION STRENGTHOF BONDEO SPECIMENS .......... 183
D. E vans and R. P. Reed
THE INTERLAMINAR SHEAR STRENGTH OF FRPs UNDER THE INFLUENCE OF VARIOUS RADIATION SOURCES ...... ..... ........... 191
S. M. Spiessberger, K. Humer, H. W. Weber, E. K. Tschegg, H. Gerstenberg, and A. Udagawa
LOW TEMPERATURE TENSILE AND SHEAR/TENSION PROPERTIES OF COMPOSITE MATERIALS WITH ELECTRICALLY INSULATING BARRIER FILMS . . ............................. . ..... . ......... . . ... ...... ... 197
D. E. Baynham, D. Evans, S. J. Gamage, D. Morrow, and S. J. Robertson
TESTS OF FILL FIBERS AND EPOXY RESINS FüR THE FABRICATION OF IMPREGNATED SUPERCONDUCTING SOLENOIDS . . . . . . . . . . . . . . . . . . . . . 205
M. A. Green, S. K. Mukherjee, S. M. Dardin, 1. W. O'Neill, R. E. Marrs, and E. Magee
PLASMA TREATMENT OF COMPOSITE INTERFACE FüR CRYOGENIC USE . . 211 T. Yagi, S. Ueno, S. Nishijima, and T. Okada
AEROGEL-BASED CRYOGENIC SUPERINSOLATION . . . . . . . . . . . . . . . . . . . . . 219 1. E. Fesmire, S. Rouanet, and 1. Ryu
MECHANICAL PROPERTIES OF ZIRCONIA AND SILICA AT CRYOGENIC TEMPERATURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
S. Ueno, S. Nishijima, A. Nakahira, K. Kijima, H. Ejima, and T. Okada
INSOLATION FüR WIND AND REACT HIGH TEMPERATURE SUPERCONDUCTING COILS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
I. H. Mutlu and Y. S. Hascicek
A COMPOSITE ELECTRICAL INSOLATION IN SUPERCONDUCTING MAGNETS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
A. Yamamoto, T. Ueki, H. Mukai, S. Hosaka, Y. Toda, Y. Makida, S. Mine, and K. Makishima
vii
Polymers, Composites, & Epoxies
FREE VOLUME AND CRYOGENIC PROPERTIES OF HYBRID MATERIALS . . . 245 T. Okada, S. Nishijima, S. Ueno, Y. Honda, K. Niihara, A. Nakahira, and
K. Kijima
PROPERTIES OF MATERIALS FOR USE IN LIQUID HYDROGEN CONTAINMENT VESSELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
S. J. Canfer and D. Evans
FAlLURE CRITERION OF GLASS/EPOXY COMPOSITES USED AS ELECTRICAL INSULATION FOR LARGE SUPERCONDUCTING MAGNETS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
J. M. Rey, F. Rondeaux, B. Gallet, A. Desirelli, and F. Kireher
VAMAS ROUND ROBIN TESTS ON COMPOSITE MATERIAL AND SOLDER AT LIQUID HELIUM TEMPERATURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269
T. Ogata, D. Evans, and A. Nyilas
TOUGHENING OF EPOXY RESIN SYSTEMS FOR CRYOGENIC USE . . . . . . . . . 277 T. Ueki, K. Nojima, K. Asano, S. Nishijima, and T. Okada
MOLECULAR DYNAMIC SIMULATION OF POLYMERie MATERIALS AT CRYOGENIC TEMPERATURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285
S. Nishijima, T. Nishiura, and T. Okada
ENHANCED CREEP OF EPOXY RESIN DURING IRRADIATION AT CRYOGENIC TEMPERATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291
T. Nishiura, S. Nishijima, S. Ueno, Y. Tsukasaki, and T. Okada
Aluminum & Copper Alloys: Properties & Processing
POP-IN PHENOMENA IN Al-Li ALLOY A. Bussiba, H. Alush, and M. Kupiec
299
OPTIMIZATION STUDIES ON HIGH-STRENGTH Ag-Cu CONDUCTORS 307 F. Heringhaus, S. 0. Prestemon, G. Gottstein, and H.-J. Schneider-Muntau
FATIGUE-INDUCED ELECTRICAL DEGRADATION OF COMPOSITE HIGH-PURITY/HIGH-STRENGTH ALUMINUM RINGS AT 4 K .. . . . .... . . . .... .. 315
S. L. Bray, J. W. Ekin, and M. J. Nilles
LOW-TEMPERATURE PLASTIC DEFORMATION AND RESISTIVITY OF COARSE-GRAIN PURE ALUMINUM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323
S. E. Demyanov, M. L. Petrovskii, A. V. Petrov, and S. P. Zakatov
TIME-RESOLVED FLOW STRESS BEHAVIOR OF STRUCTURAL
VIII
MATERIALS AT LOW TEMPERATURES B. Obst and A. Nyilas
331
Thermal & Mechanical Properties
PROBLEMS INVOLVED IN DETERMINING THE MECHANICAL PROPERTIES OF SOLID NITROGEN AND A COMPOSITE OF SOLID NITROGEN AND ALUMINUM FOAM (40 K-61 K) .. . .. .. . .. ...... ... .... 339
R. C. Pederson, C. D. Miller, J. M. Arvidson, K. Blount, and M. P. Schulze
SIMPLE GUARDEO HOT PLATE TECHNIQUE FüR MAKING THERMAL CONDUCTIVITY MEASUREMENTS OF COMPOSITE MATERIALS AT CRYOGENIC TEMPERATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349
R. J. Oram and E. G. Wolff
THERMAL CONTRACTION COEFFICIENT MEASUREMENT TECHNIQUE OF SEVERAL MATERIALS AT LOW TEMPERATURES USING ELECTRONIC SPECKLE PATTERN INTERFEROMETRY . . . . . . . . . . . . . . . . . 359
S. Nakahara, S. Nishida, S. Hisada, and T. Fujita
THERMAL CONDUCTIVITY OF SINTERED NICKEL FILMS OBTAINED WITH THE HVOF TECHNIQUE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367
F. Pavese, D. Ferri, D. Giraudi, and M. Vanolo
LOW-TEMPERATURE THERMAL, DIELECTRIC, AND ACOUSTIC PROPERTIES OF AMORPHOUS POLYMERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373
M. Jäckel, F. V. Schoenebeck, T. Eggert, G. Köbemik, U. Escher, B. Kluge, and A. Gladun
~UPERCONDUCTORS
High Temperature Superconductors: Processing
OXYGEN ANNEALING OF YBCO/GOLD THIN-FILM CONTACTS ... . ...... . 381 Y. Xu, J. W. Ekin, C. C. Clickner, and R. L. Fiske
SYNTHESIS OF RE (Gd, Sm, Nd) Ba2Cup7_x SUPERCONDUCTORS THROUGH THE DIFFUSION PROCESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 389
K. Tachikawa, M. Ogasawara, N. Takaoka, N. Kohchi, and A. Kikuchi
DEVELOPMENT OF LOW-Jc APPLICATIONS OF HIGH-Tc SUPERCONDUCTORS BASEDON EXTENDED THICK FILMS SPRAYED ON METALLIC SUBSTRATES WITH THE HVOF TECHNIQUE . . . . . . . . . . . . 397
F. Pavese, M. Bianco, A. Tampieri, M. Itoh, M. Vanolo, D. Giraudi, G. Celotti, and K. Mori
FABRICATION OF 10,000 A/cm2 CLASS Bi-2223 SINTERED BULK ..... ... ... 405 M. Satoh, S. Haseyama, M. Kojima, A. Murata, S. Yoshizawa, T. Negishi, and
I. Tanaka
SUPERCONDUCTING BUTT-JOINT OF Bi-2212/Ag MULTIFILAMENTARY TAPES ...... . ............ . ............... . ......................... 413
M. Okada, K. Fukushima, T. Hirano, J. Sato, H. Kumakura, T. Kiyoshi, K. Togano, and H. Wada
IX
STUDIES OF THE Bi(2223) PHASE FORMATION MECHANISM IN Pb SUBSTITUTED AND Pb FREE BULK SAMPLES AND IN Ag SHEATHED TAPES . . ............ .. . . ........... . ... ... ...... . . . .. . .. . .......... 417
R. F1ükiger, J. C. Grivel, G. Grasso, and 0. Grindatto
PHASE EQUILIBRIUM AND FORMATION OF Bi2223 PHASE IN PIT-PROCESSED TAPES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 427
K. Osamura, H. lto, T. Horita, S. Nonaka, H. D. Ramsbottom, and H. Okuda
THE FORMATION MECHANISM OF (Bi,Pb)-2223 PHASE AND A PSEUDO-BINARY PHASE DIAGRAM OF (Bi,Pb)-Sr-Ca-Cu-0 SYSTEM . . ......... . .. 435
X. Y. Lu, A. Nagata, K. Sugawara, and S. Kamada
GROWTH OF TRANSIENT PHASES DURING Bi(2212) TO Bi(2223) TRANSFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 443
J. E. Ostenson, M. J. Breitwisch, D. Kouzoudis, and D. K. Finnemore
COMPUTER SIMULATIONS OF Bi-2223 SJNTERED BULK Y. A. Kozinkina and I. A. Parinov
449
THE INFLUENCE OF METALLIC INTERFACES ON THE PROPERTIES OF BULK (Hg,A)Ba2Ca2Cupx (A=Pb,Bi) SUPERCONDUCTORS . . . . . . . . . . . . . . . 457
K. M. Amm, P. V.P. S.S. Sastry, D. C. Knoll , and J. Schwartz
RECENT IMPROVEMENTS IN LONG LENGTH Bi-2212 CONDUCTORS . . . . . . 465 W. Dai, K. Marken, and S. Hong
CHARACTERISTICS OF THE Ag-SHEATHED Bi-2223 MULTIFILAMENTARY TAPES USING POWDERIWIRE-IN-TUBE TECHNIQUE ..... . . .. ...... . . . . 471
R. Zeng, J. N. Li, Q. Y. Hu, Y. C. Guo, H. K. Liu, and S. X. Dou
SYNTHESIS AND PROCESSING OF DOPED Hg1Ba2Ca2Cupy SUPERCONDUCTORS . . ........ . . . . . .. . .. . .. .. ... .. . . . . . . . .. . .. . . . . . 477
P. V.P. S.S. Sastry, K. M. Amm, D. C. Knoll, S. C. Peterson, and J. Schwartz
DOPING EFFECT ON PARTIAL-MELTING OF Hg_Ba2Ca2Cu3Re0 p y FILAMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 485
T. Goto, M. Konishi, and M. Tonomura
PROCESSING CONSIDERATIONS FüR ADDING NANOMETER-SCALE OXIDES TO ENHANCE FLUX PINNING IN HIGH-TEMPERATURE SUPERCONDUCTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 493
Y. Xu, K. C. Goretta, M. M. Cuber, M. L. Burdt, L. R. Feng, N. Chen, U. Balachandran, and M. Xu
SYNTHESIS OF T1Ba2Ca2Cupx THICK LAYER ON METAL TAPES THROUGH THE DIFFUSION REACTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 I
A. Kikuchi, K. Tachikawa, M. Ogasawara, and T. Nakamura
FORMATION OF POROSITY AND ITS EFFECT ON THE UNIFORMITY OF J c
IN Bi-2212/Ag TAPES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 509 W. Zhang, M. Polak, A. Polyanskii, E. E. Hellstrom and D. C. Larbalestier
X
IMPROVEMENT OF SUPERCONDUCTING PROPERriES ON Bi2Sr2CaCuz0x MULTILAYER SUPERCONDUCTING TAPE AND ITS APPLICATION ..... . . 517
T. Hasegawa, Y. Hikichi, Y. Aoki, H. Kumakura, H. Kitaguchi, and K. Togano
RECENT ADVANCES IN PROCESSING OF Ag-CLAD Bi-2223 SUPERCONDUCTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 525
U. Ba1achandran, M. Lelovic, T. Deis, N. G. Eror, P. Haldar, and V. Selvamanickam
HIGH STRAIN WARM EXTRUSION AND WARM ROLLING OF MULTIFILAMENTARY Bi-2223 METALLIC PRECURSOR WIRE . . . . . . . . . . . 533
C. L.H. Thieme, D. Daly, L. J. Masur, and J. Schwartz
High Temperature Superconductors: Properties
MAGNETIC PROPERTY OF THE YBaCuO-SYSTEM SUPERCONDUCTORS ... 541 S. Kohayashi, H. Miyairi, S. Yoshizawa, S. Haseyama, S. Nagaya, and
H. Nakane
STRUCTURE AND SUPERCONDUCTING PROPERriES OF Bi-2212 CYLINDERS PREPARED BY DIFFUSION PROCESS . . . . . . . . . . . . . . . . . . . . . 547
Y. Yamada, F. Yamashita, K. Wada, and K. Tachikawa
EFFECT OF 3221-PHASE ON PHASE FORMATION AND SUPERCONDUCTING PROPERTIES OF Bi-2223/Ag TAPES ............... 555
J. N. Li, H. K. Liu, and S. X. Dou
EFFECT OF V ADDITIONS ON Bi2223 PHASE FORMATION AND SUPERCONDUCTING PROPERriES OF (Bi,Pb)2Sr2Ca2Cupz .......... . . . . 561
H. Maeda, K. Kakimoto, M. Kikuchi, J. 0. Willis, K. Watanabe, Y. Tanaka, and H. Kumakura
CRITICAL CURRENT AND STRAIN TOLERANCE OF Bi-2223/Ag MULTIFILAMENT TAPES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 569
N. Savvides, A. Thorley, and D. Reilly
AC SUSCEPTIBILITY AND AC LOSS IN Bi-2223/Ag SUPERCONDUCTING TAPES .............. .. .................. . ....................... .. . 577
N. Savvides and K.-H. Muller
THEORY OF CYCLIC LOSS IN A HIGH-T SUPERCONDUCTOR . . . . . . . . . . . . 585 ,. W. 1. Carr, Jr.
SHEATH AND SUBSTRATE LOSSES IN HIGH-Tc SUPERCONDUCTORS . . . . . 593 W. 1. Carr, Jr.
STUDY ON REPRODUCIBILITY OF TRANSPORT CRITICAL CURRENT FOR HTSC ................................ . ............... .. ........... 601
H. Kitaguchi, K. Itoh, H. Wada, and K. Togano
IRREVERSIBILITY AND VORTEX GLASS-LIQUID TRANSITION FIELDS OF SILVER-SHEATHED Bi-2212 SUPERCONDUCTING TAPES ... .... .. . . . . .. 609
T. Matsushita, M. Tagomori, K. Noguchi, M. Kiuchi, and T. Hasegawa
xi
MODELING THE FLUX CREEP CHARACTERISTICS OF HIGH-T c
SUPERCONDUCTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 617 N. Sakamoto, T. Akune, and A. Matsuda
ELECTRICAL RESISTIVITY OF A HIGH-Tc SUPERCONDUCTOR FOR ELECTRIC CURRENT HIGHER THAN Ic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 623
M. Shiotsu, K. Hata, A. Sakurai, C. Suzawa, S. Isojima, K. Sato, and T. Fukui
c-DIRECTION FINITE VOLTAGE IN Bi-BASED/Ag MULTIFILAMENT TAPES .. 631 R. Zeng, Q. Y. Hu, J. N. Li, H. K. Liu, and S. X. Dou
COMPUTER SIMULATIONS OF LARGE-GRAIN YBCO PROPERTIES . . . . . . . . 639 I. A. Parinov, E. V. Pozhkov, and C. E. Vassil'chenko
COMPARISON OFFLUX BUNDLE SIZE BETWEEN THREE-DIMENSIONAL Y-123 AND TWO-DIMENSIONAL Bi-2212 SUPERCONDUCTORS . . ....... . 647
T. Matsushita, M. Kiuchi, and H. Yamato
MAGNETO-OPTICAL OBSERVATION OF MAGNETIC FLUX PENETRATION AND CURRENT DISTRIBUTION IN Y-Ba-Cu-0 SINGLE CRYSTALS AND MELT-TEXTURED CERAMICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 655
A. I. Belyaeva
INVESTIGATIONS ON Ba02 ADDITIONS IN Ag-CLAD BißrFaCup, CONDUCTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 663
U. P. Trociewitz, P. V.P. S.S. Sastry, B. T. Boutemy, P. R. Sahm, and J. Schwartz
MECHANICAL PROPERTIES AND STRAIN EFFECTS IN Bi2Sr2CaCup/Ag COMPOSITE CONDUCTORS . . . . .. . . . ... . . .. . .. . . .. ... ... . . .. . . . . . . .. 671
B. C. Amm, Y. S. Hascicek, J. Schwartz, and L. Y. Xiao
EFFECT OF SHEATH MATERIAL ON STRUCTURE AND PROPERTIES OF BPSCC0-2223 CONDUCTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 679
A. D. Nikulin, A. K. Shikov, N. E. Khlebova, M. I. Medvedev, E. V. Antipova, I. I. Akimov, and D. A. Filichev
THE INFLUENCE OF PRE-EXISTING DEFECTS ON THEBENDING STRAIN BEHAVIOR OF Bi2Sr2Ca1Cup, AND (Bi,Pb)2Sr2CaFup, Ag-SHEATHED TAPES . . . . . . ... . . . . .... . . ... . .. . .. .. .... . ........ . . . .. .. . ...... . .. . 683
A. A. Polyanskii, M. Polak, J. W. Anderson, W. Zhang, E. E. Hellstrom, and D. C. Larbalestier
TRANSPORT CRITICAL CURRENT DENSITY DISTRIBUTIONS IN Ag/Bi-2223 TAPES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 691
H. D. Ramsbottom, H. lto, T. Horita, K. Matsuno, and K. Osamura
ELECTRO-MAGNETIC ANALYSIS OF HIGH Tc SUPERCONDUCTORS
XII
BASED ON ANISOTROPie E-J CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . 699 N. Amemiya, K. Miyamoto, H. Mukai, and K. Sato
NUMERICAL ANALYSIS ON AC TRANSPORT LOSSES OF HIGH TEMPERATURE SUPERCONDUCTING WIRES AND CABLES
T. Fukunaga and A. Oota
AC MAGNETIC FIELD LOSSES IN BSCC0-2223 SUPERCONDUCTING
707
TAPES ............ . ................ . .. . .... .. .. . . . .. ... ... ... . ..... 715 M. Lelovic, S. Mench, T. Deis, N. G. Eror, U. Balachandran,
V. Selvamanickam, and P. Haidar
TRANSPORT CURRENT AC LOSSES OF HIGH-Tc SUPERCONDUCTING TAPES EXPOSED TO AC MAGNETIC FIELD . . . . . . . . . . . . . . . . . . . . . . . . . . . . 723
S. Fukui, Y. Kitoh, T. Numata, 0. Tsukamoto, J. Fujikami, and K. Hayashi
FREQUENCY DEPENDENCE OF AC TRANSPORT CURRENT LOSS IN Bi-2223/Ag TAPES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 731
Y. K. Huang, J. J. Rabbers, B. ten Haken, and H. J. ten Kate
EVIDENCE OF STRONG RELATIONSHIP BETWEEN CARRIER STATES IN FRACTIONAL QUANTUM-HALL EFFECT ANDIN HIGH-TEMPERATURE SUPERCONDUCTIVITY FOUND IN DIELECTRIC MEASUREMENT OF La2_xSrxCu04 FILM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 739
M. Sugahara, H.-F. Lu, H.-Q. Yin, H. Kaneda, N. Haneji, and N. Yoshikawa
X-RAY DIFFRACTION INVESTIGATION IN HIGH FJELDS AT LOW TEMPERATURE FOR Nd0ßr05Mn03 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 747
K. Watanabe, Y. Watanabe, S. Awaji, M. Fujiwara, N. Kobayashi, and T. Hasebe
High Temperature Superconductors: Applications
MINIATURIZED MULTILAYER FILTERS WITH YBa2Cup7_d ON LaAI03 AND MgO SUBSTRATES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 753
F. A. Miranda, R. S. Kwok, M. S. Demo, D. Y. Bohman, and S. J. Fiedziuszko
THE ANISOTROPie CHARACTERISTIC OF THE MAGNETIC STABILITY OF HTS PERMANENT MAGNETS . . ........... . .......................... 761
M. Qiu, S. Han, and L. Lin
MAGNET CONDUCTOR DEVELOPMENT USING Bi-2223 HIGH TEMPERATURE SUPERCONDUCTING WIRE . . . . . . . . . . . . . . . . . . . . . . . . . . . 769
K. DeMoranville, J. M. Seuntjens, W. Bames, C. J. Christopherson, P. Antaya, and G. Snitchler
DEVELOPMENT OF STRENGTHENED BUNDLE HIGH TEMPERATURE SUPERCONDUCTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 777
J. W. Lue, J. A. Dernko, M. S. Lubell, M. Tomsic, and U. Sinha
DEVELOPMENT OF Ag SHEATHED Bi(2223) TAPES FOR POWER APPLICATIONS WITH IMPROVED HOMOGENEITY . . . . . . . . . . . . . . . . . . . . . 785
G. Grasso, Y. Huang, F. Marti, R. Passerini, J.-C. Grivel, and R. Flukiger
xiii
SINGLE AND THREE-PHASE AC LOSSES IN HTS SUPERCONDUCTING POWER TRANSMISSION LINE PROTOTYPE CABLES . . . . . . . . . . . . . . . . . . . 791
D. E . Daney, H. J. Boenig, M. P. Maley, J. Y. Coulter, and S. Fieshier
DEVELOPMENT OF Ag-SHEATHED Bi2223 SUPERCONDUCTING WIRES AND THEIR APPLICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 799
K. Hayashi, K. Sato, K. Obkura, N. Sbibuta, K. Ohmatsu, T. Kaneko, T. Sashida, M. Ueyama, J. Fujikami, M. Ito, S. Kobayasbi, N. Saga, and S. Hahakura
High Temperature Superconductors: Coated Conductors
BIAXIALLY ALIGNED HIGH Je YBCO TAPES ON YSZ BUFFER LAYERS DEPOSITED BY IBAD METROD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 807
M. Hosaka, Y. Iijima, N . Sadakata, T. Saitob, 0. Kohno, and K. Takeda
YBaCuO-COATED HIGH-Je CONDUCTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 815 H. C. Freyhardt, J. Dzick, K. Heinemann, A. Isaev, J. Hoffmann,
F. Garcia-Moreno, S. Sievers, A. Usoskin, and J. Wiesmann
YBCO DEPOSITION BY THERMAL EVAPORATION .. . . .. . . .. .. . . . . .. ..... 819 B. Utz, R. Semerad, S. Rieder-Zecha, E. Kobler, P. Berbericb, and H. Kinder
FABRICATION OF YBaFuPx SUPERCONDUCTING TAPE BY CONTINUOUS MOCVD TECHNIQUE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 827
K. Onabe, S. Nagaya, Y. Iijima, N. Sadakata, T. Saitoh, and 0. Kohno
BIAXIALLY ALIGNED YBCO FILM TAPES FABRICATED BY INCLINED SUBSTRATE PULSED LASER DEPOSITION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 835
K. Hasegawa, K. Fujino, H. Mukai, M. Konisbi, K. Hayasbi, K. Sato, S. Honjo, Y. Sato, H. Ishii, Y. lwata
Low Temperature Superconductors: Nb Ti
CRITICAL CURRENTS AND SUPERCONDUCTING BOUNDARY EFFECTS IN S-N-S MULTIFILAMENTARY COMPOSITES . . . . . . . . . . . . . . . . . . . . . . . . . 843
M. D. Sumption, S. Tak:ics, and E. W. Collings
STUDIES ON DIFFUSIONAL DECOMPOSITION AND Je IN A STRONGLY DEFORMED Nb-Ti ALLOY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 851
0. V. Chemyi, N. F. Andrievskaya, V. 0 . Il 'yicbeva, G. E. Storozbilov, and L. G.Udov
INFLUENCE OF THICKNESS ON ORIENTATIONAL DEPENDENCE OF CRITICAL CURRENT DENSITY OF NbTi THIN FILMS . . . . . . . . . . . . . . . . . . . 859
M. Takeda, K. Nishigaki, and H. Toda
DEVELOPMENTS IN LOW TEMPERATURE SUPERCONDUCTOR MATERIALS AT CABOT PERFORMANCE MATERIALS . . . . . . . . . . . . . . . . . . 865
D. B. Smathers and D. A. Sentner
HIGH CRITICAL-CURRENT MEASUREMENTS IN LIQUID AND GASEOUS HELIUM .......... . . . .......... . ....... . .............. . ...... . . ... . 873
L. F. Goodrich, L. T. Medina, and T. C. Stauffer
xiv
SUPERCONDUCTING BEHAVIOR OF Nb-Ti-12.3 wt.% Ta AND Nb-Ti-20.4 WT.% Ta MULTIFILAMENTARY SUPERCONDUCTING WIRES ........ . .. 881
L. V. Potanina, G. P. Vedernikov, V. Yu. Korpusov, A. D. Nikulin, S. I. Novikov, and M. S. Novikov
Low Temperature Superconductors: A-15 Compounds
DEVELOPMENT OF SUPERCONDUCTING JOINTS FOR TWC HIGH-Je Nb3Sn WIRES FOR NMR SUPERCONDUCTING MAGNET APPLICATIONS . . . . . . . 889
G. Liang, J. Zeigler, L. Crowe, J. Hunter, and T. Mann
HIGH-FIELD PERFORMANCE OF Nb3Sn SUPERCONDUCTORS PREPARED FROM INTERMEDIATE COMPOUND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 895
K. Tachikawa, Y. Kuroda, H. Tomori, and M. Ueda
DEVELOPMENT OF Nb3Sn WIRES MADE BY THE INTERNAL-TIN PROCESS 903 E. Gregory, E. Gulko, and T. Pyon
A NEW TECHNIQUE TO FABRICATE MULTIFILAMENT Nbßn SUPERCONDUCTOR USING CABLED MONOCORE SUBELEMENTS . . . . . . 911
D. Yu, K. DeMoranville, M. Takayasu, and T. Wong
An IMPROVED METHOD FOR MAKING HIGH FJELD CRITICAL CURRENT ESTIMATES AND ITS APPLICATION TO HIGH CURRENT MJR WIRES 919
P. D. Jablonski and J. C. McKinnell
DEVELOPMENT OF SUPERCONDUCTING HIGH CURRENT DENSITY LARGE DIAMETER INTERNAL TIN (Nb3Sn) WIRES . . . . . . . . . . . . . . . . . . . . . 927
J. C. Mckinnell and P. D. Jablonski
DEVELOPMENT OF BRONZE-PROCESSED Nb3Sn SUPERCONDUCTORS FOR lGHz NMR MAGNETS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 935
T. Miyazaki, N. Matsukura, T. Miyatake, M. Shimada, K. Takabatake, K. Itoh, T. Kiyoshi, A. Sato, K. Inoue, and H. Wada
IMPROVEMENT OF CRITICAL CURRENT DENSITY IN THE BRONZEPROCESSED Nb3Sn SUPERCONDUCTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 943
T. Miyazaki, N. Matsukura, T. Miyatake, M. Shimada, K. Takabatake, K. ltoh, T. Kiyoshi, A. Sato, K. Inoue, and H. Wada
HIGH CRITICAL CURRENT DENSITIES IN Nb3Sn FILMS WITH ENGINEERED MICROSTRUCTURES- ARTIFICIAL PINNING MICROSTRUCTURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 951
D. R. Dietderich, M. Ke1man, J. R. Litty, and R. M. Scan1an
FLUX PINNING MECHANISMS IN SUPERCONDUCTING A 15 MATERIALS AND THE OPTIMIZATION OF THEIR TRANSPORT PROPERriES . . . . . . . . . 959
D. Rodrigues Jr. , S. Foner, and D. G. Pinatti
CHARACTERIZATION OF HIGH-CURRENT Nb3Sn CABLE-IN-CONDUIT CONDUCTORS vs APPLIED SHEATH STRAIN . . . . . . . . . . . . . . . . . . . . . . . . . . 967
J. R. Miller, R. P. Walsh, M. R. Has1ow, W. J. Kenney, and G. E. Miller
XV
Low Temperature Superconductors: Ac Losses, Stability, & Current Distribution
On EXCESSIVE RESISTANCE AND HEAT GENERATION OF ALUMINUM CONDUCTOR DUE TO MAGNETIC FIELD INHOMOGENEITY . . . . . . . . . . . . 975
V. R. Sobo1, 0. N. Mazurenko, and A. A. Drozd
ELECTRON SCATTERING PROCESSES ANISOTROPY IN AI-Y DILUTE ALLOYS IN STRONG MAGNETIC FIELDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 983
S. E. Demyanov, A. A. Drozd, and A. V. Petrov
THE CRITICAL PROPERTIES OF THREE A 15 MULTIFILAMENTARY SUPERCONDUCTORS CHANGED BY AXIAL COMPRESSION AND TENSION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 991
B. ten Haken, H. H.J. ten Kate, T. Takeuchi, and H. Wada
LORENTZ FORCE SIMULATION TESTS ON A FULL-SCALE PROTOTYPE MODEL COIL OF THE 45-T HYBRID MAGNET . . . . . . . . . . . . . . . . . . . . . . . . . 999
R. P. Walsh, J. R. Miller, I. R. Dixon, and G. E. Miller
DETERMINATION OF THE THERMAL AND MECHANICAL STRAIN BEHAVIOR OF Nb Ti/Cu CABLE EMBEDDED IN AN ALUMINUM STABILIZER .......... .. .......... . ................... . . ...... ..... 1007
R. P. Wa1sh, H. Schneider-Muntau, and J. C. Lottin
DIMENSIONAL CHANGES OF Nb3Sn, Nb3A1, And Bi2Sr2CaCup8
CONDUCTORS DURING HEAT TREATMENT AND THEIR IMPLICATION FOR COIL DESIGN . . . .. . . . . .. ... . . . . . . . . ... .. ... ... .. .. . . . .. .. . . . ... 1013
D. R. Dietderich, J. R. Litty, and R. M. Scan1an
EXPERIMENTAL CHECKING OF AN AC LOSSES MODEL FOR SUPERCONDUCTING TWISTED CABLE-IN-CONDUIT .... . . . . ...... . .. . 1021
T. Schild, S. Negroni, D. Ciazynski, and J. L. Duchateau
INVESTIGATION THE INFLUENCE OF THE Nbßn WIRE DESIGN PARAMETERSAND TWIST PITCH ON HYSTERESIS LOSSES ............ 1029
A. D. Nikulin, A. K. Shikov, A. E. Yorobieva, A. G. Silaev, K. A. Mareev, L. M. Fisher, and I. F.Vo1oshin
EFFECT OF MAGNETIC FIELD DIRECTION ON HfE CRITICAL CURRENT OF TWISTED MULTIFILAMENTARY SUPERCONDUCTING WIRES ... .... 1035
M. Takayasu, D. B. Montgomery, and J. Minervini
TEST SET-UP TO STUDY CURRENT DISTRIBUTION IN AC MULTISTRAND SUPERCONDUCTING CABLES . ... . .................... . . ....... .. . . . 1043
V. S. Vysotsky, K. Funaki, K. Kajikawa, H. Tomiya, M. Nakamura, and M. Takeo
THE CONSEQUENCE OF SELF-FIELD AND NON-UNIFORM CURRENT DISTRIBUTION ON SHORT SAMPLE TESTS OF SUPERCONDUCTING CABLES . . . . ................. ... . . . . ... .... . . . . .. . . . ... . .. . . .. . .. .. 1051
A. P. Verweij
XVI
Low Temperature Superconductors: Coupling Currents in Rutherford Cables
REVIEW ON BOUNDARY-INDUCED COUPLING CURRENTS . . . . . ...... . . . . 1059 A. P. Verweij
ELECTRICAL RESISTANCE OF SUPERCONDUCTING CABLE SPLICES . .. . . 1069 M. Kuchnir
AC LOSS AND CONTACT RESISTANCE IN Nb3Sn RUTHERFORD CABLES WITH AND WITHOUT A STAINLESS STEEL CORE ..... . . . . . .. . ........ 1077
M. D. Sumption, E. W. Collings, R. M. Scanlan, A. Nijhuis, and H. H. J. ten Kate
FACTORS CONTROLLING THE ONSET OF PROXIMITY EFFECT COUPLING (PEC) AND THE INFLUENCE OF PINNING-ASSISTED PEC ON M-H LOOP ASYMMETRY IN MULTIFILAMENTARY COMPOSITES . . . . . .. . . ..... . . . . 1085
M. D. Sumption, S. Takacs, and E. W. Collings
INDEXES
AUTHOR INDEX .. . .. ..... .. . . .. . . . . .. . .. . ..... . . . . . .. . .. ............. 1093
MATERIALS INDEX .... .. .. . .......... . . .. ............. . .. ............ 1097
SUBJECT INDEX ......... . . . .. . . . ... .. . .. . .. .. ... ....... .. ............ 1099
PREFACE
The 1997 International Cryogenic Materials Conference (ICMC) was held at the Oregon Convention Center in Portland, Oregon, in conjunction with the Cryogenic Engineering Conference (CEC) on July 28-August 1. The cryogenic pioneering theme amidst the Pacific Northwest setting attracted over 700 participants, representing 22 countries. The logistics of the Portlandsetting facilitated interactions between conference attendees and the 36 exhibitors. The generous support of financial contributors including Cabot Performance Materials, Oxford Instruments, Intermagnetics General Corporation, Wah Chang and The National High Magnetic Field Lab enabled the planners to control the costs ofthe conference, extend support to foreign and student participants, and provide a warm atmosphere for discussion of information exchanged during the days. Northwest Natural Gas and Trimet, local cryogenic pioneers, provided natural gas-powered transportation and a technical tour oftheir LNG facilities for public transportation. In addition to the technical sessions and exhibits the assembly of experts from around the world (38% non-US attendance) allowed Specialmeetingsand cross-exchange between International Thermonuclear Experimental Reactor (ITER) and Versailles AMAS (VAMAS) scientists.
The 1997 technical program consisted ofa wide range oftopics. Excellent plenary presentations were made by Peter Limon (Fermilab) about the plans and dreams for future accelerators, and by E. Trifon Laskaris (GE) about the new advances in magnetic resonance therapy. A focused session, organized by program committee member Bob Hawsey (Oak Ridge), highlighted the new developments in high-temperature superconducting (HTS) coated conductors. These conductors are the second generation ofHTS conductors to make impressive critical current performance at high magnetic fields, after the Bi-oxide HTS conductors, which were prominent in the program. Superconducting materials composed the majority ofthe program, with continued progress in Nb-Ti, Nb3Sn, and Nb3Al, better understanding of the BSCCO phase formation and the current-voltage characteristics, longer-Iength BSCCO tapes and wires, ac Iosses and strain effects in strands in cables, and progress in Hg- and Tl-oxide superconductors all being reported. I thank program committee members Lesh Motowidlo (IGC), Balu Balachandran (Argonne), Ron Scanlan (Berkeley), Mike Sumption (Ohio State), Justin Schwartz (Florida State), Kozo Osamura (Kyoto University-Japan sub-chair), and Herbert Freyhardt (University of Göttingen-Europe sub-chair). Structural materials and advanced composites, especially advanced alloys for the International Thermonuclear Experimental Reactor, took a !arger than usual share of the pro gram, as organized by K. Ted Hartwig (Texas A& M), Dick Reed (Boulder) and Dave Evans (Rutherford Laboratory). The Student Meritorious Paper Award winner was Kathleen Amm (Florida State) for her investigation ofthe growth of Hg-oxide HTS conductors on textured meta! substrates.
Clear, warm weather persisted throughout the conference, as expected for a typical Oregon summ er. The social program was highlighted by an excursion to the Oregon Museum of Science and Industry and the treasures of the Gobi Desert.
xix
Finally, we want to thank a number ofpeople who helped make the program successful. Bruce Strauss (DOE) and Shawn Wheeler (CRDF) gave us advice and consultation, without which we could not have provided any kind of assistance to the I arge number of foreign scientists who were supported. Nancy Cooley, Kim Bass, and Sue Walton worked on various stages of organizing the program and managing the program budget.
David B. Smathers Conference Chairman
Lance D. Cooley Program Chairman
EDITORIAL
Since 1954 Advances in Oyogenic Engineering has been the archival publication of papers presented at the biennial CEC/ICMC conferences. Advances in Crvogenic Engineering resides throughout the world in the I ibraries of most institutions that conduct rcsearch and development in cryogenic engineering and applied superconductivity. Thc publication inc1udes invited, unso1icited, and government-sponsored research papers in the research areas of superconductors and structura1 materials for cryogenic appl ications. A II of the papers published must (I) be presented at the conference, (2) pass the review process. and (3) report previously unpublished theoretica1 studies, reviews. or measurements of material properlies at low temperatures.
Two or more specialists review each paper and assess its value to the scicntitic community and correctness in presentation. Reviewcrsreturn their comments to the appropriate technical editor. who decides whether to accept, reject, or return the manuscript to the author for revision. Only on the positive recommendation oftwo reviewers is the paper accepted. If one review is positive and one is negative, a third independent review is solicited. Authors must makc changes deemed mandatory by the reviewers. To ensure objectivity, the names of the reviewers are withheld from the author, and from each other.
Nearly two hundred contributed and invited talks covering all aspects of cryogenic materials research were presented at the 1997 ICMC; 142 papers are published in this volume. I would like to extend my appreciation to Melinda Adamsand Kim Bass ofthe University ofWisconsin für their assistance in the conference Publications Office. On behalf ofthe Technical Editorsand myself, I would like to thank Marilyn Stieg for the skillful rewriting of several papers that, tor an assortment of reasons, could not be corrected by the authors.
The next CEC/ICMC joint conference (held biennially) will be held in MontreaL Canada, on Ju1y 13- 16, 1999. Julian Cave (IREQ Hydro-Quebec) wi ll be the ICMC Chairman, and Al Ze11er (Michigan State University) will be the CEC Chairman.
Victoria A. Bardos Managing Editor
xxi
BEST PAPER A W ARDS
Awards for the best papers of the 1995 ICMC Proceedings, Advances in Cryogenic Engineering- Materials, Volume 42, were presented at the 1997 conference. From those nominated by the editors, the Awards Committee selected one paper from each oftwo categories: superconductors and structural materials. In addition, the Program Committee selected one meritorious paper from the 1997 conference representing the work of students. With pleasure we acknowledge these authors for their exemplary contributions.
BEST PAPERS: VOLUME 42
Development of Superconducting Wires for Fusion Application C. E. Bruzek, P. Suiten, P. Mocaer, P. Mougenot, F. Peltier, and G. Grunblutt
GEC Alsthom Power Generation/ASIA Be/fort, France
Effect of Cr and Ni on the Temperature Dependence of Deformation Behavior and Shape Memory Effects in Fe-Mn-Si Alloys
L. J. Rong, Y. Y. Li, H. M. Cheng, and C. X. Shi Institute of Meta! Research, Academia Sinica
Shenyang, P. R. China
STUDENT MERITORIOUS PAPER: VOLUME 44
The Influence of Metallic Interfaces on the Properties of Bulk (Hg,A)Ba2Ca2Cu30 , (A=Pb,Bi) Superconductors
K. M. Amm, P. V. P. S. S. Sastry, D. C. Knoll, and J. Schwartz National High Magnetic Field Laboratory/Florida State University
Tallahassee, FL, USA
XXIII
International Cryogenic Materials Conference
1997 BOARD OF DIRECTORS
Julian Cave IREQ Hydro-Quebec Varennes, QUE, Canada
Alan F. Clark National Institute of Standards and
Technology Gaithersburg, Maryland, USA
Edward Collings Ohio State University Columbus, Ohio, USA
Lance Cooley University of Wisconsin Madison, Wisconsin
David Evans Rutherford Appleton Labaratory Chilton, Oxon, England
Herbert C. Freyhardt University of Göttingen Göttingen, Germany
Gunther Hartwig Kernforschungszentrum Karlsruhe Karlsruhe, Germany
K. Theodore Hartwig Texas A&M University College Station, Texas, USA
Yi-Yi Li Institute of Meta! Research Shenyang, People's Republic ofChina
Hiroshi Maeda National Research Institute for Metals Tsukuba, Ibaraki, Japan
Toichi Okada Osaka University lbaraki, Osaka, Japan
Richard P. Reed Cryogenic Materials, Inc. Boulder, Golorado, USA
David B. Smathers Tosoh, SMD Grove City, OH, USA
K. Tachikawa Tokai University Hiratsuka, Kanagawa, Japan
Herman J. H. ten Kate University ofTwente Enschede, The Netherlands
Harald W. Weber Atomic Institute of the Austrian Universities Wien, Austria
Konstantin A. Yushchenko E.O. Paton Welding Institute Kiev, Ukraine
Lian Zhou National Institute for NonFerrous Meta! Xi' an, Shaanxi, Peoples Republic ofChina
XXV