The Effect of Different Preparation Methods on the Microstruture of Zirconium Diboride Ceramic Powder

摘要：

　　The melting point of zirconium diboride is up to 3245 ℃.It is concerned widespread as a high-temperature structural materials because of high melting point,high hardness,excellent electrical conductivity and good thermal conductivity.In this paper zirconium diboride powder was prepared by the carbothermic reduction and precursor pyrolysis.XRD,SEM and DTA were used to characterize the performance of the two powders.Results show that the median diameter of zirconium diboride powder prepared by solid phase is about 6μm,round in shape,is not conducive to the sintering.Zirconium diboride powder prepared by precursor pyrolysis is massive,which is deposited by the layers of zirconium diboride crystals.

关键词： ZrB2 powder carbothermic reduction precursor pyrolysis

作者: Yan-yan Wang Chang-ling Zhou Chong-hai Wang Rui-xiang Liu Xi-Zhu Lin Hong-zhao Xu

作者单位: Shandong Research & Design Institute of Industrial Ceramics,Zibo 255031,China Jinan University,Jinan,250022,China

会议类型: 国际会议

会议名称: 2012 Workshop on Synthesis, Characterization and Applications of Inorganic Powders (2012年全国无机粉体制备与表征技术研讨会)

会议地点: 桂林

会议语种:英文

页码: 9-12

在线出版日期: 2012-07-16（万方平台首次上网日期，不代表论文的发表时间）