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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Pluym, T.C., Kodas, T.T., Wang, LM. et al. Silver-palladium alloy particle production by spray pyrolysis. Journal of Materials Research 10, 1661–1673 (1995). https://doi.org/10.1557/JMR.1995.1661
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DOI: https://doi.org/10.1557/JMR.1995.1661