Role of modulus mismatch in vertically aligned nanocomposite formation during spinodal decomposition in constrained films
Role of modulus mismatch in vertically aligned nanocomposite formation during spinodal decomposition in constrained films
复制标题
约束薄膜旋节线分解期间模量失配在垂直排列纳米复合材料形成中的作用
DOI：
10.1063/1.4823700
复制
发表时间：
2013-09-30
影响因子：
4
通讯作者：
He, L. H.
中科院分区：
文献类型：
--
作者：
Liao, X. B.;Ni, Y.;He, L. H.
通过旋节线分解垂直排列的纳米复合材料薄膜的自组装在一系列技术应用中具有潜在的意义。利用弹性非均匀立方二元外延层中旋节线分解的三维相场模拟，阐明了由模量失配、立方各向异性因子和产物相之间的各向异性晶格失配介导的弹性相互作用如何促进实验观察到的柱状纳米复合材料的形成。就模量失配、立方各向异性因子和各向异性晶格失配构建了从垂直排列的柱状纳米复合材料到垂直排列的层状纳米复合材料的相图。该结果为这种纳米复合结构的形成提供了指导。
Self-assembly of vertically aligned nanocomposite films via spinodal decomposition is of potential interest in a range of technique applications. How the elastic interaction mediated by modulus mismatch, cubic anisotropy factor, and anisotropic lattice mismatch between the product phases facilitates the experimentally observed columnar nanocomposite formation was elucidated using three-dimensional phase field simulations of spinodal decomposition in an elastically inhomogeneous cubic binary epilayer. A phase diagram from vertically aligned columnar nanocomposites to vertically aligned laminar nanocomposites was constructed with respect to modulus mismatch, cubic anisotropy factor, and anisotropic lattice mismatch. The results provide a guideline for such nanocomposite structure formation.