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Initial magnetization of sintered-bulk and Ag-shiethed tape of Bi(Pb)-Sr-Ca-Cu-O

โœ Scribed by Akio Oota; Hideki Noji; Akihisa Yata; Kenichi Hayashi; Kentaro Ohba

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
340 KB
Volume
165-166
Category
Article
ISSN
0921-4526

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โœฆ Synopsis

The coupling nature of the high-Tc grains in Bi(Pb)-Sr-Ca-Cu-O is studied through initial magnetization M(R) on sintered-bulk samples prepared under different sintering time. Flux penetration along the grain boundary occurs at the field much lower than He,. A prolonged sintering improves this a little and strengthens transport current path leading to enhancement of Tc (p=O) . In comparison, the M(R) curve for a Ag-shiethed tape with Jc(77K)~2400A/cm2 (R=O) is presented and the result of He. is discussed.

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