Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报(英文版)

Transactions of Nonferrous Metals Society of China

Vol. 5    No. 2    June 1995

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MICROSTRUCTURE AND Jc OF Y-Ba-Cu-O SUPERCONDUCTOR AFTER Po2-ALTERNATIVE HEAT TREATMENT
Chen Kanghua; Huang Peiyun

Powder Metallurgy Research Institute; Central South University of  Technology; Changsha 410083

Abstract:The effect of Po2-alternative heat treatment on the melting point,the microstructure and the Jc of  YBa2Cu3O7-δ superconductor has been investigated. It is found that the melting point of  YBa2Cu3O7-δ decreasedto 900℃ when Po2 decreased to 10 Pa. The texture of the YBa2Cu3O7-δ polycrystal could occur at temperatures lower than 920℃ after Po2 -alternative treatment.

 

Key words: ceramic superconductor Yba2Cu3O7-δ preparation texture

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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