Improvement of the critical current density in the silver sheathed Bi‐Pb‐Sr‐Ca‐Cu‐O superconducting tape
作者:
M. Mimura,
H. Kumakura,
K. Togano,
H. Maeda,
期刊:
Applied Physics Letters
(AIP Available online 1989)
卷期:
Volume 54,
issue 16
页码: 1582-1584
ISSN:0003-6951
年代: 1989
DOI:10.1063/1.101319
出版商: AIP
数据来源: AIP
摘要:
The critical current density (Jc) at 77 K and in 0 T of more than 3000 A/cm2has been obtained in the silver sheathed Bi‐Pb‐Sr‐Ca‐Cu‐O tape fabricated by the combination process of sintering and intermediate cold working. The decrease of theJcwith increasing magnetic field is much smaller in the tape prepared by this process than that prepared by sintering only. The improvement of theJcis attributed to the improvement of the coupling between the grains of the highTcphase. The process enhances the formation of the highTcphase and produces a highly oriented grain structure. These are considered to be responsible for the large improvement of the coupling.
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