Phase compatibility and superconductivity of Y-Ba-Cu-O compounds

被引：0

作者：

Wadayama, Yoshihide ^{[1
]}

Kudo, Kotaro ^{[1
]}

Nagata, Akihiko ^{[1
]}

Ikeda, Keisuke ^{[1
]}

Hanada, Shuji ^{[1
]}

Izumi, Osamu ^{[1
]}

机构：

[1] Tohoku Univ, Japan

来源：

Japanese Journal of Applied Physics, Part 2: Letters | 1988年 / 27卷 / 07期

关键词：

Ceramic Materials - Oxides - Superconductivity;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Superconducting properties of Y-Ba-Cu-O compounds were investigated in relation to precipitation of second phases. Contour lines of Jc, Tc and diamagnetic signal intensities were presented in the YO1.5-BaO-CuO system. These superconducting properties decreased steeply with BaCuO2 precipitation, and the maximum Jc was obtained in the yttrium-rich composition of Y1.2Ba2Cu3O7-y. It is considered, therefore, that the BaCuO2 precipitating around the YBa2Cu3O7-y grains interrupt the superconducting current pass at the grain boundary. Yttrium-rich composition, which inhibits BaCuO2 precipitation, is effective for the preparation of the high-Jc sample.

引用

共 50 条

[41] EFFECTS OF SULFUR ADDITION ON THE SUPERCONDUCTIVITY OF Y-BA-CU-O COMPOUND
MATSUBARA, I
TANIGAWA, H
OGURA, T
KOSE, S
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1988, 27 (06): : L1080 - L1082
[42] HIGH-TC SUPERCONDUCTIVITY OF Y-BA-CU-O CERAMICS
KOBAYASHI, M
SATOH, H
AYUSAWA, K
ABE, H
TSURUOKA, T
AJIOKA, T
SHIBATA, S
KAWAMURA, K
NIHEI, K
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1987, 26 (05): : L754 - L756
[43] SUPERCONDUCTIVITY IN ARGON-TREATED Y-BA-CU-O SYSTEM
PANDE, CS
OSOFSKY, MS
SINGH, AK
RICHARDS, LE
ASHOKA, R
LETOURNEAU, V
WOLF, SA
PHYSICAL REVIEW B, 1988, 37 (04): : 1594 - 1596
[44] EFFECT OF BI DOPING ON THE SUPERCONDUCTIVITY IN Y-BA-CU-O SYSTEM
OKONSKAKOZLOWSKA, I
MACIAZEK, E
GRUSZKA, D
POLISH JOURNAL OF CHEMISTRY, 1994, 68 (04) : 869 - 870
[45] PHASE CONVERSIONS IN Y-BA-CU-O SYSTEM
KLINKOVA, LA
SOIKINA, IV
ROMANENKO, IM
ZHURNAL NEORGANICHESKOI KHIMII, 1990, 35 (02): : 446 - 453
[46] CUBIC PHASE IN THE Y-BA-CU-O SYSTEM
AGOSTINELLI, JA
CHEN, S
BRAUNSTEIN, G
PHYSICAL REVIEW B, 1991, 43 (13): : 11396 - 11399
[47] TETRAGONAL-TO-ORTHORHOMBIC PHASE-TRANSITION AND SUPERCONDUCTIVITY IN THE Y-BA-CU-O SYSTEM
SUGAI, T
OYA, G
IMAI, S
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1990, 29 (02): : 266 - 267
[48] HETEROEPITAXIAL GROWTH OF Y-BA-CU-O/BI-SR-CU-O/Y-BA-CU-O
HARADA, K
TANAKA, S
ITOZAKI, H
YAZU, S
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1990, 29 (07): : L1114 - L1116
[49] SUPERCONDUCTIVITY IN HOT-PRESSING Y-BA-CU-O SYSTEM AND CHEMICALLY DOPED R(ER,F)-Y-BA-CU-O SYSTEM
CHEN, C
HE, Y
CUI, CG
LI, SL
SOLID STATE COMMUNICATIONS, 1988, 68 (11) : 1015 - 1017
[50] METASTABILITY OF SUPERCONDUCTING COMPOUNDS IN THE Y-BA-CU-O SYSTEM
BROSHA, EL
DAVIES, PK
GARZON, FH
RAISTRICK, ID
SCIENCE, 1993, 260 (5105) : 196 - 198

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