亚微米Al2O3颗粒的微观结构及Al2O3p/1070Al复合材料的界面
来源期刊：中国有色金属学报2002年第2期
论文作者：姜龙涛 武高辉 孙东立 张强 河野纪雄
文章页码：342 - 346
关键词：界面；Al2O3p/Al；金属基复合材料；Al2O3
Key words：interface; Al2O3p/Al; metal matrix composites; Al2O3
摘 要：利用透射电镜和高分辨电镜对直径为0.15μm的球形Al2O3颗粒增强相及其增强1070Al复合材料的界面进行了观察，结果表明： Al2O3颗粒是由一些角度相差较小的晶面构成的多面体，多面体的各晶面是由密排面沿着密排晶向形成的台阶式结构；0.15μm的Al2O3p/1070Al复合材料界面结合良好，没有发现任何界面反应物；由于颗粒的台阶式结构导致铝基体与Al2O3颗粒存在一定的位相关系。
Abstract: The microstructure of 0.15μm spherical Al2O3 particles and the interface of Al2O3p/1070Al composites were investigated by TEM and HREM. The results show that Al2O3 particles are polyhedrons constructed by planes between which angles are small. And the planes of polyhedrons exhibit stepped structure formed by the closed-packed planes along the closed-packed direction. The interface between the 1070Al matrix and Al2O3 reinforcements is well bonded and free from interfacial reaction products. Because of the stepped structure of Al2O3 particles，some preferential crystallographic orientation relationships between aluminum matrix and Al2O3 particles were observed.
