PREPARATION OF HIGH-TC SUPERCONDUCTING OXIDE-FILMS IN THE BI-(PB)-CA-SR-CU-O SYSTEM FROM STABILIZED METAL-ALKOXIDES

被引：11

作者：

TOHGE, N

TATSUMISAGO, M

MINAMI, T

机构：

[1] Department of Applied Chemistry, University of Osaka Prefecture, 591, Mozu-Umemachi, Sakai-Shi, Osaka-Fu

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1990年 / 121卷 / 1-3期

关键词：

D O I：

10.1016/0022-3093(90)90173-J

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

High-Tc superconducting oxide films in the Bi(Pb)CaSrCuO system have been prepared from metal-alkoxides stabilized with amines, and their formation process has been studied. Films of the composition Bi2Ca2Sr2Cu3Ox were formed on MgO single crystal substrates by the dip-coating method and calcined at 820°C for 15 min. The above process was repeated about twenty times and then, as a final step, sintered at 850-870°C. Films sintered at 860°C for 20 h were strongly orientated with the c-axis perpendicular to the substrate and exhibited Tc (zero) at 86 K. The substitution for part of the Bi with Pb showed a tendency for Tc (zero) to shift toward higher temperatures, whereas the 110 K phase was not obtained. © 1990.

引用

页码：443 / 447

页数：5

共 15 条

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