Interface Sharpening instead of Broadening by Diffusion in Ideal Binary Alloys

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Interface sharpening instead of broadening by diffusion in ideal binary alloys.

We demonstrate, using computer simulations based on deterministic kinetic equations and Monte Carlo technique, that during intermixing in an ideal AB system with an initially wide A/B interface-if the diffusion coefficient D strongly depends on concentration-the interface can become sharp on nanoscale. The sharp interface shifts proportionally with time (in contrast to the square root law). Fur...

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ژورنال

عنوان ژورنال: Physical Review Letters

سال: 2002

ISSN: 0031-9007,1079-7114

DOI: 10.1103/physrevlett.89.165901