西南交通大学学报(英文版)1996,Vol.4Issue(2):160-163,4.
The Interfacial Microstructure of Al2O3 Fibre Reinforced Al-5.5Zn Matrix Composite
The Interfacial Microstructure of Al2O3 Fibre Reinforced Al-5.5Zn Matrix Composite
Zhang Xiyan 1Gao Qing 1Liu Shikai1
作者信息
- 1. Department of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031 ,China
- 折叠
摘要
Abstract
The interfacial microstructure of Al2O3 short fibre reinforced Al-5.5Zn matrix composite was studied using transmission electron microscope (TEM) in this paper. Experimental results show that there exist a diffusional layer with a wide thickness range and a third phase in the fibre/matrix interface, resulting from Al/SiO2 reaction. Some of the reduced silicon atoms adhere to the fibre/matrix interface and nucleate to form the elemental eutectic silicon, and the others diffuse into the Al/Zn melt and form the diffusional layer. The complexity of the interfacial microstructure may result from the different solidification conditions between the regions in the melt because of the non-uniformity of the fibre distribution and orientation in the preform.关键词
composite,Al2O3 fibre,microstructure,aluminum alloyKey words
composite,Al2O3 fibre,microstructure,aluminum alloy分类
化学化工引用本文复制引用
Zhang Xiyan,Gao Qing,Liu Shikai..The Interfacial Microstructure of Al2O3 Fibre Reinforced Al-5.5Zn Matrix Composite[J].西南交通大学学报(英文版),1996,4(2):160-163,4.