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January 28th, 2010

PhysicoChemical Characterization of Strontium- and Cobalt-Doped Lanthanum Chromite Powders Produced by Combustion Synthesis

Published on January 28th, 2010 | By: pwray@ceramics.org

Volume 6 Issue 5, Pages 626 – 635

 

Luiz F. G. Setz, Sonia R. H. Mello-Castanho, Rodrigo Moreno, María T.
Colomer
Published Online: Oct 29 2008 1:04PM

DOI: 10.1111/j.1744-7402.2008.02302.x

 

ABSTRACT
Doped lanthanum chromites are investigated as ceramic interconnect
materials to be used in high-temperature solid oxide fuel cells (SOFCs).
In this work, a La0.80Sr0.20Cr0.92Co0.08O3
powder was produced by combustion synthesis and characterized in terms
of phases and crystalline structure, thermal evolution, particle size,
and surface behavior. The effects of milling time on the particle size
distribution and the agglomeration factor were also studied. The
physicochemical characterization was completed with ζ potential
measurements in order to establish the isoelectric point and the best pH
conditions because slurry-processing techniques are mostly used for the
manufacture of the SOFC devices.

 

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