HIGH-TEMPERATURE X-RAY-DIFFRACTION - AN ESSENTIAL TOOL FOR PHASE-DIAGRAM INVESTIGATION - EVIDENCE OF ITS ROLE IN THE SYSTEM BI2O3-SRO

被引：15

作者：

CONFLANT, P ^{[1
]}

DRACHE, M ^{[1
]}

WIGNACOURT, JP ^{[1
]}

BOIVIN, JC ^{[1
]}

机构：

[1] UNIV SCI & TECH LILLE FLANDRES ARTOIS,F-59652 VILLENEUVE DASCQ,FRANCE

来源：

MATERIALS RESEARCH BULLETIN | 1991年 / 26卷 / 11期

关键词：

D O I：

10.1016/0025-5408(91)90129-A

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Previous descriptions of the Bi2O3-SrO system lead to significant discrepancies due to the use of different techniques. A new investigation, using high temperature X-ray diffraction unambiguously characterizes the different equilibrium phases as a fonction of the temperature. The most striking differences are: the presence of a fully reversible beta-2 - beta-1 phase transition in the rhombohedral domain; the thermal phenomenon observed at 780-degrees-C for the SrBi2O4 composition has to be associated to the decomposition into two solid solutions; the Sr6Bi2O9 compound is not part of the Bi2O3-SrO system but, due to a necessary stabilizing Bi(III) - Bi(V) oxydation phenomenon, it must be formulated Sr6Bi(V)y Bi(III)2-y O9+y with y > 0.

引用

页码：1219 / 1226

页数：8

共 11 条

[1] THE SUBSOLIDUS EQUILIBRIA IN THE MOST BASIC ZONE OF THE BI2O3-SRO-O SYSTEM [J].

ABBATTISTA, F ;

BRISI, C ;

MAZZA, D ;

VALLINO, M .

MATERIALS RESEARCH BULLETIN, 1991, 26 (01) :107-117

[2]

CONFLANT P, 1979, CR ACAD SCI C CHIM, V288, P161

[3] STRUCTURAL STUDY OF THE ANIONIC CONDUCTOR BI0,765SR0,235O1,383 [J].

CONFLANT, P ;

BOIVIN, JC ;

THOMAS, D .

JOURNAL OF SOLID STATE CHEMISTRY, 1980, 35 (02) :192-199

[4] DIAGRAM OF SOLID-PHASES OF BI2O3-CAO SYSTEM [J].

CONFLANT, P ;

BOIVIN, JC ;

THOMAS, D .

JOURNAL OF SOLID STATE CHEMISTRY, 1976, 18 (02) :133-140

[5]

CONFLANT P, 1983, SOLID STATE IONICS, V9, P325

[6]

CONFLANT P, 1991, IN PRESS SPR P EMRS

[7]

GUILLERMO R, 1978, REV CHIM MINER, V15, P153

[8]

GUILLERMO R, 1973, THESIS LILLE

[9] PHASE-EQUILIBRIA IN THE SYSTEMS SRO-CUO AND SRO-1-2BI2O3 [J].

HWANG, NM ;

ROTH, RS ;

RAWN, CJ .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1990, 73 (08) :2531-2533

[10] PHASE-EQUILIBRIA AND CRYSTAL-CHEMISTRY IN PORTIONS OF THE SYSTEM SRO-CAO-BI2O3-CUO, .2. THE SYSTEM SRO-BI2O3-CUO [J].

ROTH, RS ;

RAWN, CJ ;

BURTON, BP ;

BEECH, F .

JOURNAL OF RESEARCH OF THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY, 1990, 95 (03) :291-335

← 1 2 →