NONEQUILIBRIUM ROUGHENING OF INTERFACES IN CRYSTALS UNDER SHEAR - APPLICATION TO BALL-MILLING
NONEQUILIBRIUM ROUGHENING OF INTERFACES IN CRYSTALS UNDER SHEAR - APPLICATION TO BALL-MILLING
复制标题
DOI：
10.1103/physrevlett.74.1819
复制
发表时间：
1995-03-06
影响因子：
8.6
通讯作者：
AVERBACK, RS
中科院分区：
文献类型：
--
作者：
BELLON, P;AVERBACK, RS
提出了一个简单的动力学原子模型来描述晶体受到持续剪切，与热激活扩散竞争。Monte Carlo模拟进行正混合热的合金。结果提供了一个清晰的理解，最近的实验表明，不混溶元素的化学混合可以诱导球磨。在中等剪切速率下，分析模型表明，这种驱动系统表现出非平衡粗糙化。
A simple kinetic atomistic model is proposed for describing crystals submitted to sustained shearing, acting in competition with thermally activated diffusion. Monte Carlo simulations are performed on alloys with positive heats of mixing. The results provide a clear understanding of recent experiments showing that chemical mixing of immiscible elements can be induced by ball milling. At moderate shearing rates, an analytical model shows that such driven systems exhibit nonequilibrium roughening.