Reaction synthesis of (Ti,V) 2AlC/Al2O3 composite

摘要：

　　The (Ti,V)2AlC/Al2O3 solid solution composite has been synthesized by in situ aluminothermic reduction of the blend powders of Ti,Al,V2O5 and active carbon.The phase evolution during the formation of the composite was examined at the temperature from 500 ℃ to 1400 ℃.Based on the results of X-ray diffractometry (XRD) and differential scanning calorimeter (DSC),a possible reaction mechanism was proposed to explain the formation of (Ti,V)2AlC/Al2O3 solid solution composite.Above the melting point of aluminum,liquid Al reacted with titanium to form the intermetallic compound of TiAl.As the temperature increased to 1300 ℃,the intermetallic compound of TiAl reacted with TiC to form Ti2AlC.The microstructures of the as prepared samples were also analyzed by the scanning electron microscope (SEM) together with the election dispersive spectroscopy (EDS).

关键词： (Ti,V)2AlC/Al2O3 thermite reaction thermodynamics microstructure

作者: Jianfeng Zhu Na Han

作者单位: Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry, Ministry of Education,Shaanxi University of Science and Technology, Xian 710021, China

会议类型: 国际会议

会议名称: the 2011 International Conference on Frontiers of Manufacturing Science and Measuring Technology (第一届制造科学与检测技术国际会议(ICFMM2011))

会议地点: 重庆

会议语种:英文

页码: 1274-1277

在线出版日期: 2011-06-23（万方平台首次上网日期，不代表论文的发表时间）