Effect of Agglomerate Powders Particle Size on Preparation of Hollow Multiphase Ceramic Microspheres by Self-reactive Quenching Method

摘要：

　　Adopting self-reaction quenching technology based on flame spraying technique, self-propagating high-temperature synthesis and quick chilling technique, hollow multiphase ceramic microspheres are prepared.With Al+Cr2O3+Fe+Fe2O3+MnO2 as reactive system, agglomerate powders are obtained and then distinguished as thick powders and fine powders according to the different particle size.The relationship between agglomerate powders initial particle size and hollow ceramic microspheres is analyzed by the means of SEM, EDS, XRD and particle-size analyzer.The result shows that average particle diameter of thick powder is 24.49ma and that of fine powder is 17.15μm.Particle diameters of thick powder quenching product distribute within the range of 20~50μm, and those of fine powder distribute within the range of 5~30μm.The thick powder quenching product phase composition consists of Mn2AlO4, Fe2O3, Fe3O4, FeCr2O4,Cr2O3, A12O3.The fine powder quenching product phase composition consists of Mn2AlO4, Fe2O3,FeCr2O4, Fe3O4.

关键词： Agglomerate powders Self-reactive quenching method Hollow multiphase ceramic microspheres

作者: Yong-shen Hou Jian-jiang Wang Yong-zhao Hou Hong-fei Lou Hai-tao Gao

作者单位: Mechanical Engineering College, West Heping Road 97, Shijiazhuang, 050003, PR China Beijing University of Aeronautics & Astronautics, Xueyuan Road 37, Beijing, 100191, PR China

会议类型: 国际会议

会议名称: The Eighth China National Conference on Functional Materials and Applications(第八届中国功能材料及其应用学术会议)

会议地点: 哈尔滨

会议语种:英文

页码: 285-291

在线出版日期: 2013-08-23（万方平台首次上网日期，不代表论文的发表时间）