Statistical Mechanics of Microstructural Evolution

这是一个关于微观结构演化的统计力学和动力学的实验和理论程序。从部分凝固的一元熔体中建立和分析表征良好的显微组织的实验方法已扩展到二元金属合金和有机体系。提出了一种新的基于自相似和全局微观结构约束的相粗化统计理论。采用热衰减测量和定量立体学来提供演化微观结构的平均场和长度尺度描述之间的明确联系。

This is an experimental and theoretical program on the statistical mechanics and kinetics of microstructure evolution. The experimental approach developed for creating and analyzing well-characterized microstructures from partially solidified unary melts is extended to binary metallic alloys and organic systems. A new statistical theory of phase coarsening based solely on self similarity and global microstructure constraints is pursued. Thermal decay measurements and quantitative stereology is employed to provide a definitive link between the meanfield and lengthscale descriptions of evolving microstructures.