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利用电子探针、透射电子显微技术，研究了挤压铸造法制备的莫来石（３Ａｌ２Ｏ３ ·２ＳｉＯ２ ）纤维增强ＺＬ１０９ 合金复合材料的纤维与基体界面。研究中未发现纤维与基体界面有Ｃｕ 元素偏聚及其析出相与反应产物，而界面有明显的Ｍｇ、Ｓｉ元素偏聚，并发生Ｍｇ＋ ２ＳｉＯ２＋ ２Ａｌ→ＭｇＡｌ２Ｏ４＋ ２Ｓｉ反应，反应产物ＭｇＡｌ２Ｏ４ 依附纤维形核生长
The fiber-matrix interface of ZL109 alloy composites reinforced by mullite (3Al2O3 · 2SiO2) prepared by squeeze casting method was studied by means of electron probe and transmission electron microscopy. No segregation of Cu and its precipitates and reaction products were observed at the interface between the fiber and the matrix, while obvious Mg and Si segregation occurred at the interface and Mg + 2SiO2 + 2Al → MgAl2O4 + 2Si reaction occurred. The reaction product MgAl2O4 was dependent on the fiber nucleation Grow