THE MELT PROCESS OF TL-BA(SR)-CA-CU-O TAPE-SHAPED WIRE

被引：8

作者：

OKADA, M ^{[1
]}

YUASA, T ^{[1
]}

MATSUMOTO, T ^{[1
]}

AIHARA, K ^{[1
]}

SEIDO, M ^{[1
]}

MATSUDA, S ^{[1
]}

机构：

[1] HITACHI CABLE LTD,MET RES LAB,TSUCHIURA,IBARAKI 300,JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1990年 / 29卷 / 12期

关键词：

SUPERCONDUCTING WIRE; SUPERCONDUCTING TAPE; HIGH-TC SUPERCONDUCTOR; OXIDE SUPERCONDUCTOR;

D O I：

10.1143/JJAP.29.2732

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The melt process effectively improves crystal orientation, and introduces pinning centers in high-T(c) oxide superconductors. It is, however, very difficult to apply the melt process to compounds containing volatile elements such as thallium oxide. In this paper, an extremely high-speed zone-melting process (HIZM) of tape-shaped wire in the Tl-Ba(Sr)-Ca-Cu-O system is presented. The HIZM was successfully performed on the Tl-2223 tape with a little vaporization of thallium. After solidification, the Tl-2223 matrix transformed to the nonequilibrium phase of 2212 with fine CaO and Cu0 particles. A postannealing was undertaken to retransform the nonequilibrium phases to the equilibrium 2223-phase. It would be possible to control the nonequilibrium CaO phase a pinning center during HIZM and subsequent annealing process.

引用

页码：2732 / 2736

页数：5

共 16 条

[1] ORIENTATION DEPENDENCE OF GRAIN-BOUNDARY CRITICAL CURRENTS IN YBA2CU3O7-DELTA BICRYSTALS
DIMOS, D
CHAUDHARI, P
MANNHART, J
LEGOUES, FK
[J]. PHYSICAL REVIEW LETTERS, 1988, 61 (02) : 219 - 222
[2] HIGH-TC SUPERCONDUCTORS - COMPOSITE WIRE FABRICATION
JIN, S
SHERWOOD, RC
VANDOVER, RB
TIEFEL, TH
JOHNSON, DW
[J]. APPLIED PHYSICS LETTERS, 1987, 51 (03) : 203 - 204
[3] BROADENING OF THE FLUCTUATION REGION UNDER MAGNETIC-FIELD IN (LA, SR)2CUO4 SINGLE-CRYSTAL
KAMBE, S
NAITO, M
KITAZAWA, K
TANAKA, I
KOJIMA, H
[J]. PHYSICA C, 1989, 160 (3-4): : 243 - 248
[4] CRYSTAL-GROWTH AND SUPERCONDUCTIVITY OF TL-CA-BA-CU-O SYSTEM
KOTANI, T
KANEKO, T
TAKEI, H
TADA, K
[J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1989, 28 (08): : L1378 - L1381
[5] A NEW HIGH-TC OXIDE SUPERCONDUCTOR WITHOUT A RARE-EARTH ELEMENT
MAEDA, H
TANAKA, Y
FUKUTOMI, M
ASANO, T
[J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1988, 27 (02): : L209 - L210
[6] MATSUMOTO T, 1989, 1989 P ISTEC WORKSH, P111
[7] MURAKAMI M, 1988, ADV SUPERCONDUCTIVIT, P247
[8] NEUTRON-DIFFRACTION STUDY ON PREFERRED ORIENTATION OF AG-SHEATHED Y-BA-CU-O SUPERCONDUCTOR TAPE WITH JC=1000-3000 A/CM2
OKADA, M
OKAYAMA, A
MATSUMOTO, T
AIHARA, K
MATSUDA, S
OZAWA, K
MORII, Y
FUNAHASHI, S
[J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1988, 27 (09): : L1715 - L1717
[9] AG-SHEATHED TL-BA-CA-CU-O SUPERCONDUCTOR TAPE WITH TC=120-K
OKADA, M
NISHIWAKI, R
KAMO, T
MATSUMOTO, T
AIHARA, K
MATSUDA, S
SEIDO, M
[J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1988, 27 (12): : L2345 - L2347
[10] FABRICATION OF AG-SHEATHED BA-Y-CU OXIDE SUPERCONDUCTOR TAPE
OKADA, M
OKAYAMA, A
MORIMOTO, T
MATSUMOTO, T
AIHARA, K
MATSUDA, S
[J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1988, 27 (02): : L185 - L187

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