TiN/Al2O3 Composite Material Synthesized by Aluminothermic Reduction Process in Reductive Atmosphere

摘要：

　　TiN/Al2O3 composite material was prepared by aluminothermic reduction of TiO2 in coke bed from mixtures of TiO2 powder and metal Al powder.The phase composition,lattice parameter and microstructure of products after treatment in different temperatures were analyzed by XRD,SEM.The results show that TiN/Al2O3 composite material can be produced in coke bed via aluminothermic reduction reaction.Moreover,the treatment temperature affects the evolution of aluminothermic reaction and morphology of products obviously.The content,grain size and lattice parameter of TiN in products in coke bed increase with the increasing of treatment temperature.Thermodynamically it confirms that metal Al reacts with oxygen in coke bed while it is involved in aluminothermic reduction reaction,and then it causes the lack of Al,which takes part in the aluminothermic reaction leading to a surplus futile in the products.

关键词： Aluminothermic reduction TiN/Al2O3 composite material Coke bed

作者: Jianhua Nie Yawei Li Hao Yan Yonghe Liang Yuanbing Li

作者单位: State Key Laboratory Breeding Base of Refractories & Ceramics,Wuhan University of Science and Technology,Wuhan 430081,China

会议类型: 国际会议

会议名称: The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))

会议地点: 长沙

会议语种:英文

页码: 721-723

在线出版日期: 2007-05-10（万方平台首次上网日期，不代表论文的发表时间）