TRANSFORMATION OF THE HIGH-T(C) SUPERCONDUCTING PHASE (BI,PB)2SR2CACU2O8+X - STUDY ON VARIATIONS IN OXYGEN STOICHIOMETRY BY OPTIMIZATION OF THERMOGRAVIMETRIC ANALYSIS

被引：5

作者：

SATRE, P

SEBAOUN, A

机构：

[1] Laboratoire de Physico-Chimie des Matériaux et du Milieu Marin, LPCM3, Equipe des Matériaux à Finalité Spécifique, Université de Toulon et du Var, La Garde Cedex

来源：

JOURNAL OF THERMAL ANALYSIS | 1994年 / 41卷 / 01期

关键词：

DTA-DTG; BISMUTH CUPRATE; OXYGEN STOICHIOMETRY; PHASE DIAGRAM; SUPERCONDUCTOR;

D O I：

10.1007/BF02547026

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

DTA-DTG systematic study of high T(c) superconducting phase (Bi,Pb)2Sr2CaCu2O8+x, with and without lead, shows a quantitatively opposite variation of oxygen stoechiometry on heating and cooling. Multiplate sample container, designed for the study, allowed to dissociate PbO loss from oxygen variations. Phases transformations have been studied under several P(O2) by scanning DTA and DTG. Oxygen variations evolution has been evaluated by isothermal TO. The results proved that phase diagram representation must take into consideration the P(O2) coordinate.

引用

页码：211 / 224

页数：14

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