Preparation and Characterization of Sm1-xSrxCoO3 Ceramics by the Gelcasting Process

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Perovskite Sm1-xSrxCoO3 ceramics have been successfully prepared by gelcasting from oxides and carbonate powders, which were characterized by sintering the gels cast from a suspension of low-solubility metallic oxide precursors and organic monomers. The porosity, pore size, microstructure and electrical conductivity of the obtained Sm1-xSrxCoO3 ceramics were also investigated. It has been shown that single Sm1-xSrxCoO3 perovskite phase forms at a relatively low calcination temperature of 1000°C. Especially, porous Sm1-xSrxCoO3 ceramics with homogeneous microstructure can be obtained by controlling sintering process of the gelcasts. In addition, the Sm1-xSrxCoO3 ceramics show good electrical conductivity, which can meet the demand for solid oxide fuel cell cathode application.

Info:

Periodical:

Key Engineering Materials (Volumes 336-338)

Edited by:

Wei Pan and Jianghong Gong

Pages:

444-447

DOI:

10.4028/www.scientific.net/KEM.336-338.444

Citation:

J. G. Cheng et al., "Preparation and Characterization of Sm1-xSrxCoO3 Ceramics by the Gelcasting Process", Key Engineering Materials, Vols. 336-338, pp. 444-447, 2007

Online since:

April 2007

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Price:

$35.00

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