Crystallisation and superconductivity of rapidly quenched (amorphous) Bi-Ca-Sr-Cu-O samples

被引：2

作者：

Liu, Zhi Yi ^{[1
]}

Persson, M. ^{[1
]}

机构：

[1] Chalmers Univ of Technology, Sweden

来源：

Superconductor Science and Technology | 1988年 / 1卷 / 04期

关键词：

Bismuth Compounds - Amorphous - Ceramic Materials - Crystallization;

D O I：

10.1088/0953-2048/1/4/009

中图分类号：

学科分类号：

摘要：

An amorphous phase of Bi1Ca1Sr1Cu2Ox was prepared by a rapid quench from the melt. It was not superconducting above 4.2 K. High-temperature superconducting phases, with superconducting onsets up to 107 K, were formed by annealing and crystallising amorphous samples in the temperature range of 810 to 920°C. Quenched, partly amorphous samples displayed high-temperature superconductivity but with a lower transition temperature than the fully crystallised ones.

引用

页码：198 / 200