Article ID Journal Published Year Pages File Type
10655609 Intermetallics 2010 5 Pages PDF
Abstract
Solid state reactive diffusion in binary Au-Sn system has been studied using the diffusion couple consisting of pure elements Au and Sn annealed in the temperature range of 180-100 °C for 25 h. Interdiffusion zone consists of four intermetallic phases Au5Sn, AuSn, AuSn2, and AuSn4. Activation energy for parabolic growth constant and integrated diffusivity for each phase has been calculated to indicate about the possible mechanism for diffusion controlled growth process. Parabolic growth constant of individual phases has also been compared. Kirkendall marker plane position has been indicated in the interdiffusion zone and furthermore the ratio of intrinsic diffusivities of species has also been determined.
Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
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