Synthesis and characterization of high temperature superconductors - System Bi-Pb-Sr-Ca-Cu-O

被引：3

作者：

Jeremie, A

Grasso, G

Flukiger, R

机构：

[1] University of Geneva, Département de Physique de la Matière Condensée, CH-1211 Genève 4, 24, quai Ernest-Ansermet

来源：

JOURNAL OF THERMAL ANALYSIS | 1997年 / 48卷 / 03期

关键词：

high-temperature superconductors; superconductors;

D O I：

10.1007/BF01979509

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The high temperature superconductors of the system Bi-Pb-Sr-Ca-Cu-O show promising properties and large scale applications can be considered. The (Bi,Pb)(2)Sr2Ca2Cu3O10+delta (Bi,Pb(2223)) phase is attractive because of its high superconducting temperature (110 K) and high current transport capabilities. Simultaneous DTA/TG has proved an excellent tool for synthesizing, characterizing these high temperature superconductors, confirming phase diagrams and finding the optimal annealing temperature for Bi,Pb(2223)/Ag tapes in order to obtain high critical current densities around 30 kA cm(-2) at 77 K and 0T. The identification of the main DTA peaks of measurement of different phase mixtures made it possible to observe the formation of an intermediate phase Bi,Pb(2212) during the formation of Bi,Pb(2223).

引用

页码：635 / 645

页数：11

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