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Fabrication of Crack-Free La0.2Sr0.8CoO3−x Membranes on Asymmetric and Porous Ceramic Supports—Effects of a Metallic Covering

Published online by Cambridge University Press:  10 February 2011

Z-D. Cao ,
L. Hong  and
X. Chen
Z-D. Cao
Affiliation:
CHEE Department, National University of Singapore, 10 kent Ridge Crescent Singapore 119260
L. Hong
Affiliation:
CHEE Department, National University of Singapore, 10 kent Ridge Crescent Singapore 119260
X. Chen
Affiliation:
Institute of Materials Research & Engineering of Singapore, 3 Research Link, Singapore 117260
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Abstract

Crack-free La0.2Sr0.8CoO3−x (LSCO) membranes have been fabricated on porous ceramic supports such as MgO and CeO2 through dip coating and sintering. To avoid cracks in a LSCO membrane during sintering, a silver coating on top of the LSCO powder-packed layer that is formed via dip coating was found successful. The cracks would be otherwise unavoidable due to the shrinkage mismatch between the membrane and the support during sintering. The silver can be readily removed from the sintered LSCO membrane chemically without causing damages in the membrane.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 606: Symposium NN – Chemical Processing of Dielectrics, Insulators & Electronic Ceramics , 1999 , 229
Copyright
Copyright © Materials Research Society 2000

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