Phase equilibria and crystal structures of solid solutions in the system LaCoO3-delta-SrCoO2.5 +/-delta-SrFeO3-delta-LaFeO3-delta / Aksenova T. V.,Anan'ev M. V.,Gavrilova L. Ya.,Cherepanov V. A. // INORGANIC MATERIALS. - 2007. - V. 43, l. 3. - P. 296-300.

ISSN/EISSN:

0020-1685 / нет данных

Type:

Article

Abstract:

The composition region and structure of La1-x Sr-x Co1-y FeyO3-delta solid solutions are determined by x-ray powder diffraction using the Rietveld profile analysis method. The solid solutions based on lanthanum cobaltite, LaCoO3-delta, have a rhombohedrally distorted perovskite-like structure (sp. gr. R (3) over barc), and those based on lanthanum ferrite, LaFeO3-delta, have an orthorhombically distorted structure ( sp. gr. Pbnm). The rhombohedral distortion decreases with increasing strontium content, and the solid solutions with x >= 0.5 have an ideal cubic structure ( sp. gr. Pm 3 m). The composition dependences of lattice parameters for the La1-xSrxCo1-yFeyO3-delta solid solutions are presented, and the 1100 degrees C isotherm of the LaCoO3-delta- SrCoO2.5 +/- delta - SrFeO3-delta - LaFeO3-delta system in air is constructed.

Author keywords:

TEMPERATURE; PEROVSKITE

DOI:

10.1134/S0020168507030168

Web of Science ID:

ISI:000245533800016

Соавторы в МНС:

Другие поля

Поле	Значение
Month	MAR
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
Keywords-Plus	TEMPERATURE; PEROVSKITE
Research-Areas	Materials Science
Web-of-Science-Categories	Materials Science, Multidisciplinary
Author-Email	aksenovatanya@yandex.ru
ResearcherID-Numbers	Cherepanov, Vladimir/E-6451-2014 Ananyev, Maxim/F-5104-2014
ORCID-Numbers	Cherepanov, Vladimir/0000-0003-3653-6459 Ananyev, Maxim/0000-0002-2254-0193
Number-of-Cited-References	11
Usage-Count-Since-2013	10
Journal-ISO	Inorg. Mater.
Doc-Delivery-Number	154UR