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On Effect of Microstructure about Bi for AgSnO2 Compositions by Reaction Synthesis

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Abstract:

This paper adopted XRD, SEM and DTA/TGA methods to discuss the microstructure of sinter AgSnO2 compositions with bismuth and without bismuth. The results showed that microstructures AgSnO2 compositions are different whether or not include bismuth. The introduction of Bi does not produce the expected SnO2 and Bi2O3 phase, but generated SnO2 and Sn2Bi2O7 phase. The reason with different microstructure has relation with early melting of Bi-rich alloys having low melting point and silver oxide decomposition rate and sinter temperature. Therefore, bring third element should be cautious for preparation composite metal oxide increase silver matrix electrical contact materials.

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Periodical:

Advanced Materials Research (Volumes 476-478)

Pages:

835-838

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.476-478.835

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Online since:

February 2012

Authors:

Xiao Long Zhou, Jian Chun Cao, Yu Cao, Jing Chao Chen, Jie Yu, Yan Du

Keywords:

Electrical Contact Materials, Microstructure, Silver Metal Oxide, Third Element

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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