Molecular Dynamics Simulation of Al2O3-SiC Interface

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Abstract:

The interfacial energy and diffusion phenomenon of the Al2O3(012)-SiC (011) interface model are studied based on molecular dynamics. The interfacial energy increases firstly until reaches its maximum 0.459J/m2 at the temperature of 1500K and then decreases. The relationship of diffusion coefficients for each kind of atoms is C>Si>O>Al. Diffusion coefficients of atoms increase at first and then decrease as the temperature goes up. This indicates the diffusion mechanism has been changed during the temperature rising process.

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Materials Science Forum (Volumes 697-698)

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192-197

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September 2011

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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