Formation of Regular Hexagonal Dislocation Network in Chemical-Furnace Sintered Alumina
Polycrystalline alumina was prepared at high temperature and high pressure from combustion reaction plus mechanical pressure.The defect structure in the sintered alumina was investigated by transmission electron microscopy and a regular hexagonal dislocation network was found.Diffraction contrast technique revealed that the regular hexagonal network on the (0001) plane was composed of three dislocations with Burgers vectors:1/3 1-2 10,1/3 -2 110 and 1/3 11-2 0.The formation process of dislocation network was discussed.
Transmission electron microscopy Dislocations network Al2O3
Fancheng Meng Zhengyi Fu Weimin Wang Qingjie Zhang
State Key Lab of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology,Wuhan 430070,PR China
国际会议
The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))
长沙
英文
672-674
2007-05-10（万方平台首次上网日期，不代表论文的发表时间）