Article ID Journal Published Year Pages File Type
1643242 Materials Letters 2015 4 Pages PDF
Abstract
Ball milling of SnO2 and Al powders creates Sn nanoparticles embedded in a stable α-Al2O3 phase through a displacement reaction. The production of stable α-Al2O3 phase indicates that sufficient thermal energy was supplied by ball milling to activate the displacement reaction. Melting points of Sn nanoparticles were observed to decrease with reducing particle size. The interfacial energy of solid tin particle-matrix was computed to be larger than liquid tin particle-matrix one. This is due to the formation of incoherent Sn-Al2O3 interfaces by ball milling.
Related Topics
Physical Sciences and Engineering Materials Science Nanotechnology
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