Sintering characteristics and thermal expansion behavior of Li-doped lanthanum chromite perovskites depending upon preparation method and Sr doping

Autor:	Bernard Pacaud, Yasuo Takeda, Eisaku Suda, Thierry Seguelong
Rok vydání:	2002
Předmět:	Materials science Doping Inorganic chemistry Analytical chemistry Sintering chemistry.chemical_element General Chemistry Condensed Matter Physics Thermal expansion Preparation method chemistry Lanthanum General Materials Science Chromite Solubility
Zdroj:	Solid State Ionics. 151:335-341
ISSN:	0167-2738
DOI:	10.1016/s0167-2738(02)00533-7
Popis:	The sintering characteristics and thermal expansion behaviors of Li-doped lanthanum chromite perovskites (La 1− x Sr x Cr 1− y Li y O 3 ; x =0, 0.1, 0.2; y =0.01, 0.02, 0.05) synthesized by the Pechini method have been investigated. The solubility limit of Li into the perovskites decreases with increasing Sr content. Li doping to the perovskites improved sintering characteristics; however, the Pechini method did not bring the effect expected on the improvement of the sintering. The thermal expansion coefficient (TEC) of the LaCrO 3 perovskites measured in air was independent of Li doping in this composition range. The TECs in the reduced atmosphere showed lower values than those in air.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::28178a3a4b1bed88de4a5d32ca86ee8a https://doi.org/10.1016/s0167-2738(02)00533-7 Zobrazit plný text záznamu Full Text from ScienceDirect