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High Temperature Stability of Silver Based Porous Nanocomposites for Electrochemical Devices

Published online by Cambridge University Press:  13 May 2013

Ayhan Sarikaya
Affiliation:
Department of Materials Science and Engineering, Missouri University of Science and Technology, Rolla, MO 65409, U.S.A.
Vladimir Petrovsky
Affiliation:
Department of Materials Science and Engineering, Missouri University of Science and Technology, Rolla, MO 65409, U.S.A.
Fatih Dogan
Affiliation:
Department of Materials Science and Engineering, Missouri University of Science and Technology, Rolla, MO 65409, U.S.A.
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Abstract

High temperature (>550°C) applications of silver based porous composites have been limited due to relatively low melting temperature (962°C) of Ag. Incorporation of oxide particles was demonstrated as an effective approach for stabilization of the porous Ag microstructures. This study aims developing an understanding based on the relationships between the properties of the incorporated YSZ (yttria-stabilized zirconia), the developed porous microstructures and the electrochemical response of their electrodes. Minimum degradation was observed with the composite microstructure based on comparable Ag and YSZ particle sizes. The results demonstrated that YSZ incorporation into Ag matrix can increase the stable application temperature to 800°C.

Type
Articles
Copyright
Copyright © Materials Research Society 2013 

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References

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