Particle-size dependence of alloy phase formation in isolated particles in the In–Sn system
- 15 November 2002
- journal article
- Published by American Vacuum Society in Journal of Vacuum Science & Technology A
- Vol. 21 (1) , 32-36
- https://doi.org/10.1116/1.1524149
Abstract
Particle-size dependence of alloy phase formation in isolated particles has been studied by transmission electron microscopy at room temperature, using alloy particles in the In–Sn binary system. In approximately 16-nm-sized particles, essentially the same alloy phases as those in bulk materials formed. Namely, at compositions near the eutectic composition, a mixture of two crystalline phases formed. However, when the size of particles was decreased down to approximately 10 nm in diameter, a liquid phase, which is not an equilibrium phase in bulk materials at room temperature, formed. The formation of a liquid phase is ascribed to the large suppression of the eutectic temperature associated with size reduction.Keywords
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