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Competitive Phase Growth in Stressed Thin Films

机译:强调薄膜的竞争相增长

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摘要

The influence of compositional strain, transformation strain, and temperature on the competitive growth of three phases in a free standing, thin film is examined. A dynamical system, comprised of coupled Cahn-Hilliard and Allen-Cahn equations, is developed and solved numerically using a dual-grid finite difference scheme. Numerical simulation shows that long-range elastic fields alter the kinetics of phase growth from that observed in stress free systems. Phases that are non-equilibrium phases in the absence of stress can stablize in the stressed film the magnitudes of these effects are presented in a simple case.
机译:研究了组成菌株,转化应变和温度对自由致薄膜三相竞争生长的影响。由耦合的CAHN-HILLIARD和ALLEN-CAHN方程组成的动力系统,并使用双电网有限差分方案在数值上进行求解和解决。数值模拟表明,远程弹性田改变了在应力系统中观察到的相位生长的动力学。在没有应力的情况下在没有应力的情况下的相阶段可以在应力膜中稳定地呈现这些效果的幅度在一个简单的情况下呈现。

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