【摘要】 本文以ＴＥＭ和ＥＤＳ为主要分析手段，研究了不同颗粒增强的Ａｌ－４％Ｍｇ复合材料的界面及其基体中的微观结构，探讨了它们的形成原因。结果表明：ＳｉＯ_２颗粒与基体间为反应结合，Ａｌ_２Ｏ_３和ＳｉＣ则基本上为机械结合。更多还原

【Abstract】 icrostructures of interfaces and matrix in porticulates reinforced Al-4%Mg composites were investi-gated. The formation mechanism was discussed. Results showed that SiO₂ particle and matrix were reac-tion-bonded , while Al₂O-3,SiC particles and matrix mechanically bonded.更多还原