Synthesis technology of spinel AlON

摘要：

The high-purity AlON ceramics,AlON/Al2O3 and AlON/AlN multiphase ceramics were prepared by pressureless sintering under nitrogen-based atmosphere with raw materials of Al2O3,AlN and Al powders.The compositions of the phase were determined by XRD,the fracture appearance was analyzed by SEM.The results indicate: the aluminum oxynitride phase in the AlON ceramics and other multiphase ceramics exist in the form of Al5O6N,whose solid-solution zone is 33.4％(mole fraction) AlN belonging to spinel structures.The average grain size of high-purity AlON is about 3 μm.The grain boundary is smooth without other phases.The density is 2.82 g/cm3,the microhardness (10 N) and about bending strength are 1 470 MPa and 94 MPa,respectively.

关键词： pressureless sintering spinel aluminum oxynitride high-purity

作者: WEI Chun-cheng TIAN Gui-shan

作者单位: School of Material Science and Engineering,Shandong University of Technology,Zibo 255049,China

会议类型: 国际会议

会议名称: 2007年国际有色金属大会(International Conference of Nonfereous Materials 2007)(ICNFM)

会议地点: 长沙

会议语种:英文

在线出版日期: 2007-11-28（万方平台首次上网日期，不代表论文的发表时间）