PHASE-DIAGRAM IN (BI,PB)-SR-CA-CU-O SYSTE M - INFLUENCE OF OXYGEN PARTIAL-PRESSURE ON PB-2212 COMPOSITION

Authors
SATRE P SEBAOUN A MONNEREAU O VACQUIER G
Citation
P. Satre et al., PHASE-DIAGRAM IN (BI,PB)-SR-CA-CU-O SYSTE M - INFLUENCE OF OXYGEN PARTIAL-PRESSURE ON PB-2212 COMPOSITION, Journal de physique. III, 4(2), 1994, pp. 261-269
Citations number
13
Categorie Soggetti
Material Science","Phsycs, Fluid & Plasmas","Physics, Applied
Journal title
Journal de physique. III → ACNP
ISSN journal
11554320
Volume
4
Issue
2
Year of publication
1994
Pages
261 - 269
Database
ISI
SICI code
1155-4320(1994)4:2<261:PI(SM->2.0.ZU;2-#
Abstract
DTA-DTG study of 2212 compound, with and without lead, shows that the different phase transformations observed on heating and cooling involv e a variation of oxygen stoechiometry quantitatively invertable. Influ ence of constraint oxygen partial pressure on phase transformations ha s been studied under several P(O2) by thermal scanning and isothermal dwell. Lead loss under PbO form has been distinguished from oxygen var iations and the existence of an isobaric invariant under 1013 +/- 15 h Pa at 884 +/- 1-degrees-C for 0.5 < P(O2) (of constraint) < 1 has bee n shown.