April 2012

Journal

ALUMINUM IMPURITY DIFFUSION IN MAGNESIUM

By:
Brennan, Sarah; Warren, Andrew; Coffey, K.; Kulkarni, Nagraj S; Todd, Peter J; Sohn, Yong Ho; Klimov, Mikhail
Journal Name:
Journal of Phase Equilibria and Diffusion
Page Number:
121-125
Volume:
33
Issue Number:
2
Publication Date:
April 2012
View DOI Listing:
https://doi.org/10.1007/s11669-012-0007-2

Abstract

The Al impurity diffusion in polycrystalline Mg (99.9%) via depth profiling with secondary ion mass spectrometry was studied in the temperature range of 673-573K, utilizing the thin film method and thin film solution to the diffusion equation. Multiple samples were utilized and multiple profiles were obtained to determine statistically confident coefficient with maximum standard deviation of 16%. Activation energy and pre-exponential factor of Al impurity diffusion in Mg was determined as 155 kJ/mole and 3.9 x 10-3 m2/sec.