Article ID Journal Published Year Pages File Type
1614749 Journal of Alloys and Compounds 2013 4 Pages PDF
Abstract
Nickel diffuses five orders of magnitude faster along the c-axis of white Sn than along the a-axis. Experimental evidence is presented to show that, when Ni atoms diffuse from a Sn grain with its c-axis aligned with the Ni flux direction, across the grain boundary, and then into a neighboring Sn grain with its a-axis aligned with the Ni flux direction, Ni3Sn4 will preferentially precipitates at the Sn grain boundary. This is a direct proof that precipitation can be caused by the diffusivity anisotropy of a diffusion medium.
Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
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