Island formation and the heterogeneous nucleation of aluminum

Mark R. O'Masta,Eric C. Clough,John H. Martin

Computational Materials Science（2021）

引用 4|浏览1

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摘要

•MD simulations show islands grow during liquid phase epitaxy of aluminum.•Islands relieve strain, while maintaining coherency with lattice mismatched substrates.•Thermodynamic analysis captures reduced undercooling for island versus planar growth.•Islands are transient and subsequent misfit dislocations permanently relieve misfit.•Being as small as 10 nm, this mechanism can activate inoculants within a melt.

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关键词

Heterogeneous nucleation,Misfit strain,Molecular dynamics,Aluminum

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