Phase composition and thermal properties of Ce1-x Ln (x) O2-d (Ln = Sm, Pr) solid solutions / Ostroushko A. A.,Russkikh O. V.,Petrova S. A.,Zakharov R. G.,Prosvetova M. V. // INORGANIC MATERIALS. - 2010. - V. 46, l. 9. - P. 959-964.

ISSN/EISSN:

0020-1685 / нет данных

Type:

Article

Abstract:

Ce1 - x Ln (x) O2 - d (Ln = Sm, Pr; x = 0-0.30) oxides have been prepared through pyrolysis of polymer-salt systems, and their particle size and specific surface area have been determined. Their sintering behavior and thermal expansion have been studied using dilatometry. The thermal expansion of the Pr-containing materials is shown to vary considerably with temperature. X-ray diffraction data (obtained at various temperatures and oxygen pressures) suggest that the Ce1 - x Pr (x) O2 - d oxides undergo a low-temperature phase transition, presumably a reversible decomposition of one solid solution to two others. The structural parameters of the phases involved and the oxygen nonstoichiometry of the samples are determined.

Author keywords:

OXYGEN PERMEABILITY; MIXED CONDUCTIVITY; DOPED CERIA; EXPANSION

DOI:

10.1134/S0020168510090074

Web of Science ID:

ISI:000281392800007

Соавторы в МНС:

Другие поля

Поле	Значение
Month	SEP
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
Keywords-Plus	OXYGEN PERMEABILITY; MIXED CONDUCTIVITY; DOPED CERIA; EXPANSION
Research-Areas	Materials Science
Web-of-Science-Categories	Materials Science, Multidisciplinary
Author-Email	alexandre.ostroushko@usu.ru
ResearcherID-Numbers	Petrova, Sofya/A-9157-2014
ORCID-Numbers	Petrova, Sofya/0000-0002-9796-5794
Funding-Acknowledgement	Federal Agency for Science and Innovation; Federal Agency for Education
Funding-Text	This work was supported by the Federal Agency for Science and Innovation and the Federal Agency for Education.
Number-of-Cited-References	16
Usage-Count-Last-180-days	2
Usage-Count-Since-2013	20
Journal-ISO	Inorg. Mater.
Doc-Delivery-Number	644PV