The purpose of this paper was to describe the synthesis of Sn-Ag nanoparticles by an arc plasma method. Sn-Ag nanoparticles have been successfully prepared by DC arc plasma with hydrogen addition. The prepared nanoparticles were characterized by X-Ray diffraction, transmission electron microscopy and inductively coupled plasma-atomic emission spectrometry. The obtained results indicated that the nanoparticles have high-purity and spherical shape. The average diameter of the nanoaprticles with 100%-Ar arc was 19.8 nm and that with 50%-H2 arc was 56.5 nm. Another purpose of this work is to investigate the vaporization behavior from molten Sn-Ag mixture with Ar and Ar-H2 arc. We confirmed the vaporization enhancement of Sn from Sn-Ag mixture by hydrogen in arc plasma.
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