Theory of ultrathin films at metal-ceramic interfaces

Details Theory of ultrathin films at metal-ceramic interfaces Theory of ultrathin films at metal-ceramic interfaces

2012-02-21

arxiv.org/abs/1202.4584v1

Philosophical Magazine Letters, 90:8, 599-609 (2010)

Physics

Condensed Matter

Materials Science

Scientific paper

10.1080/09500831003800863

A theoretical model for understanding the formation of interfacial thin films is presented, which combines density functional theory calculations for interface energies with thermodynamic modeling techniques for multicomponent bulk systems. The theory is applied to thin film formation in VC-doped WC-Co cemented carbides. It is predicted that ultrathin VC films may exist in WC/Co interfaces at the high temperature sintering conditions where most of the WC grain growth occurs, which provides an explanation of the grain growth inhibiting effect of VC additions in the WC-Co system.

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