PREPARATION OF SUPERCONDUCTING BI2SR2CACU2OX CERAMICS BY LOW-TEMPERATURE HEAT-TREATMENT

被引：10

作者：

LEE, WH

ABE, Y

机构：

[1] Department of Materials Science Engineering, Nagoya Institute of Technology, Nagoya, 466, Gokiso-cho, Showa-ku

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1991年 / 30卷 / 4B期

关键词：

BISMUTH-OXIDE-BASED SUPERCONDUCTOR; GLASS CERAMICS; LOW-TEMPERATURE HEAT TREATMENT; MELT QUENCHING; CRITICAL TEMPERATURE; VACUUM CASTING;

D O I：

10.1143/JJAP.30.L697

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Superconducting ceramic rods (T(c) almost-equal-to 80 K) of Bi2Sr2CaCu2O(x) were successfully prepared by heat treatment in air at 700-degrees-C for 20-50 h; the temperature of 700-degrees-C is believed to be the lowest temperature reported so far. The precursor rod specimens were made by vacuum casting the stoichiometric melts into silica tubes; the as-cast rods are spontaneously devitrified during cooling and are composed of crystalline phases of Bi2Sr2CuO(x) (2201 phase) and small amounts of Cu2O and unidentified crystalline phases.

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页码：L697 / L699

页数：3

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