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Silver-palladium alloy particle production by spray pyrolysis

Published online by Cambridge University Press:  03 March 2011

Tammy C. Pluym ,
Toivo T. Kodas ,
Lu-Min Wang  and
Howard D. Glicksman
Tammy C. Pluym
Affiliation:
Chemical and Nuclear Engineering Department, University of New Mexico, Albuquerque, New Mexico 87131-2833
Toivo T. Kodas*
Affiliation:
Chemical and Nuclear Engineering Department, University of New Mexico, Albuquerque, New Mexico 87131-2833
Lu-Min Wang
Affiliation:
Earth and Planetary Sciences Department, University of New Mexico, Albuquerque, New Mexico 87131-2833
Howard D. Glicksman
Affiliation:
DuPont Electronics, DuPont Company, Experimental Station, Wilmington, Delaware 19880-0334
*
a)Author to whom correspondence should be addressed.
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Abstract

Spray pyrolysis was used to produce submicron Ag-Pd metal alloy particles for applications in electronic component fabrication. The particles were prepared in nitrogen carrier gas from metal nitrate precursor solutions with various compositions. The Ag-Pd alloy was the predominant phase for reactor temperatures of 700 °C and above for all compositions. The 70-30 Ag-Pd partcles were fully dense at 700 °C, but an increased reaction temperature was necessary to produce dense particles at higher Pd to Ag ratios. The extent of palladium oxidation was suppressed with increased amounts of Ag. Single-crystal particles could be produced at sufficiently high temperatures. These results show that particle phase composition, size, oxidation behavior, and morphology can be controlled by the Ag-Pd ratio in the precursor solution and by the reaction temperature.

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Type
Articles
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Journal of Materials Research , Volume 10 , Issue 7 , July 1995 , pp. 1661 - 1673
Copyright
Copyright © Materials Research Society 1995

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References

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