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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Influence of the sintering atmosphere in doped lanthanum chromite

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Author(s):
L. F. G. Setz [1] ; S. R. H. Mello-Castanho [2] ; I. Santacruz [3] ; R. Moreno [4] ; M. T. Colomer [5]
Total Authors: 5
Affiliation:
[1] Instituto de Pesquisas Energéticas e Nucleares. Centro de Ciência e Tecnologia de Materiais - Brasil
[2] Instituto de Pesquisas Energéticas e Nucleares. Centro de Ciência e Tecnologia de Materiais - Brasil
[3] Universidad de Málaga. Departamento de Química Inorgánica, Cristalografía y Mineralogía - Espanha
[4] Consejo Superior de Investigaciones Científicas. Instituto de Cerámica y Vidrio - Espanha
[5] Consejo Superior de Investigaciones Científicas. Instituto de Cerámica y Vidrio - Espanha
Total Affiliations: 5
Document type: Journal article
Source: Cerâmica; v. 59, n. 351, p. 366-371, 2013-09-00.
Abstract

Lanthanum chromite to be used as interconnector in high temperature solid oxide fuel cells (HTSOFCs) must have adequate electrical conductivity and high density to avoid the mixture of employed gases. Sr and Co doped-LaCrO3 synthesized by combustion reaction was used to study the effect of the sintering atmospheres, inert (Ar) and oxidant (air) on the sintering/densification behavior. The pellets were sintered in a dilatometer and characterized by X-ray diffraction. The sintered densities were determined by Archimedes method, and Scanning Electronic Microscopic was used for microstructure observation. The results shown that inert and oxidant atmospheres promote densification but after thermal cycles, in oxidant media, theHTSOFCs performance may be impaired (AU)