ALUMINUM IMPURITY DIFFUSION IN MAGNESIUM

Journal Article · Sat Dec 31 23:00:00 EST 2011 · Journal of Phase Equilibria and Diffusion

DOI:https://doi.org/10.1007/s11669-012-0007-2· OSTI ID:1038072

Brennan, Sarah ^[1]; Warren, Andrew ^[1]; Coffey, Kevin ^[1]; Kulkarni, Nagraj S ^[2]; Todd, Peter J ^[2]; Sohn, Yong Ho ^[1]; Klimov, Mikhail ^[1]

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1. University of Central Florida
2. ORNL

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.

• Research Organization: Oak Ridge National Laboratory (ORNL)
• Sponsoring Organization: EE USDOE - Office of Energy Efficiency and Renewable Energy (EE)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1038072
• Journal Information: Journal of Phase Equilibria and Diffusion, Journal Name: Journal of Phase Equilibria and Diffusion Journal Issue: 2 Vol. 33; ISSN 1547-7037
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ACTIVATION ENERGY
ALUMINIUM
DIFFUSION
DIFFUSION EQUATIONS
MAGNESIUM
MASS SPECTROSCOPY
THIN FILMS
aluminum
diffusion
impurity
magnesium
secondary ion mass spectrometry