Preparation of Ag-Pd Alloy Particles by Ultrasonic Spray Pyrolysis and Application to Electrode for LTCC

摘要

Spherical Ag-Pd alloy particles were prepared from aqueous solutions of AgNO_3 and Pd (NO_3)_2 by ultrasonic spray pyrolysis. As-prepared powders were dense and non-agglomerated particles, which had sub-micron size and narrow size distribution. XRD shows that as-prepared particles are polycrystalline and the crystal phase of the as-prepared particles has an alloy composition. Ag-Pd particles obtained from spray pyrolysis offer superior oxidation-resistivity of Pd as compared with those obtained from coprecipitation.