Phase equilibria in the La-Ba-Co-O system / Cherepanov VA,Gavrilova LY,Filonova EA,Trifonova MV,Voronin VI // MATERIALS RESEARCH BULLETIN. - 1999. - V. 34, l. 6. - P. 983-988.

ISSN/EISSN:

0025-5408 / нет данных

Type:

Article

Abstract:

Phase equilibria in the La-Ba-Co-O system were studied at 1100 degrees C in air. The existence of oxide phases LaCoO3, BaCoO3-y, Ba2CoO4, and La2BaO4 in quasibinary systems in air at 1100 degrees C was found, in agreement with previous data. Two types of solid solutions were found in the quasiternary system: La1-xBaxCoO3-delta and (La1-zBaz)(2)CoO4. The homogeneity range of La1-xBaxCoO3-delta was found to be 0 less than or equal to x less than or equal to 0.8. As the content of alkali-earth metal (x) increased, a rhombohedral distortion of La1-xBaxCoO3-delta de creased; La0.55Ba0.45CoO3-delta had an ideal cubic structure. The composition of single phase samples of (La1-zBaz)(2)CoO4 composition was obtained for z = 0.300, 0.325, 0.350, and 0.375. These samples had the tetragonal K2NiF4-type structure. (C) 1999 Elsevier Science Ltd.

Author keywords:

oxides; phase equilibria

DOI:

10.1016/S0025-5408(99)00092-6

Web of Science ID:

ISI:000082451500017

Соавторы в МНС:

Другие поля

Поле	Значение
Month	APR
Publisher	PERGAMON-ELSEVIER SCIENCE LTD
Address	THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
Language	English
Research-Areas	Materials Science
Web-of-Science-Categories	Materials Science, Multidisciplinary
ResearcherID-Numbers	Voronin, Vladimir/J-7733-2013 Cherepanov, Vladimir/E-6451-2014
ORCID-Numbers	Voronin, Vladimir/0000-0002-3901-9812 Cherepanov, Vladimir/0000-0003-3653-6459
Number-of-Cited-References	19
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	14
Journal-ISO	Mater. Res. Bull.
Doc-Delivery-Number	233XB