摘要
本文用透射电镜（ＴＥＭ）的衍射技术和高分辨电镜（ＨＲＴＥＭ）研究了用原位固－气－液三态反应法制备的原位ＴｉＣ－ＡｌＮ／Ａｌ复合材料中ＡｌＮ颗粒与Ａｌ界面的微观组织结构，发现ＡｌＮ／Ａｌ界面两侧晶体的两个晶面存在平行关系：（１０１）ＡｌＮ∥（１１１）Ａｌ。作者从金属固溶和金属结晶理论出发，分析了ＡｌＮ／Ａｌ界面微结构的形成机制，较好地解释了原位ＴｉＣ－ＡｌＮ／Ａｌ复合材料中界面结合较好的原因。
The in situ TiCpAlNp/Al composite was successfully fabricated by SLV reaction technique and hot extrusion. The crystal microstructure of AlNp/Al interface on the composite was studied using the diffraction technique of TEM and HREM. It was found that there existed a crystal parallel relationship between two crystals on the AlNp/Al interface:(101)AlN∥(111)Al. Based on the theory of solid solution and crystallization of metals, the authors analyzed the formation mechanism of this crystal parallel relationship between two crystals on AlNp/Al interface, and explained the question why there was good bounding between interfaces in TiCpAlNp/Al composite.
出处
《电子显微学报》
CAS
CSCD
1998年第1期59-63,共5页
Journal of Chinese Electron Microscopy Society
基金
国家重大自然科学基金项目"非连续增强金属基复合材料制备科学"
南京大学固体微结构国家重点实验室资助
上海交通大学金属基复合材料国家重点实验室资助
河北省教委博士基金
关键词
原位复合材料
复合材料
界面
金属结晶
in situ composite\ \ composite interface\ \ AlN ceramics\ \ crystallization of metals
