Cu 45 Zr 45 Ag 10 金属性的玻璃被调查由在 situ 传播,电子显微镜学加热试验。在阶段分离和结晶化之间的关系被阐明。在早舞台的成核和控制生长的 nanoscale 阶段分离被看见阻碍 nanocrystallization,当经由 Ag 富有的 nanospheres 的聚集的更粗糙的阶段分离被发现支持 Cu 富有的 nanocrystals 的降水时。作文和动力学异质联合应当在先于结晶化的阶段分离期间起一个关键作用。
The structural evolution of Cu_(45)Zr_(45)Ag_(10) metallic glass was investigated by in situ transmission electron microscopy heating experiments. The relationship between phase separation and crystallization was elucidated. Nucleation and growth-controlled nanoscale phase separation at early stage were seen to impede nanocrystallization, while a coarser phase separation via aggregation of Ag-rich nanospheres was found to promote the precipitation of Cu-rich nanocrystals.Coupling of composition and dynamics heterogeneities was supposed to play a key role during phase separation preceding crystallization.