Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1614749 | Journal of Alloys and Compounds | 2013 | 4 Pages |
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
Authors
T.C. Huang, T.L. Yang, J.H. Ke, C.C. Li, C.R. Kao,