PREPARATION OF ZnO CERAMIC POWDER BY SOL-GEL METHOD AND ITS VOLTAGE SENSITIVE PROPERTIES  

作　　者：Chen Jianxun, Zhao Ruirong and Jiang HanyingInstitute of Metallurgy Physical Chemistry and New Chemical Materials,Central South University of Technology, Changsha 410083, P. R. China 

出　　处：《中国有色金属学会会刊：英文版》1998年第2期149-153,共5页Transactions of Nonferrous Metals Society of China

摘　　要：ＰＲＥＰＡＲＡＴＩＯＮＯＦＺｎＯＣＥＲＡＭＩＣＰＯＷＤＥＲＢＹＳＯＬＧＥＬＭＥＴＨＯＤＡＮＤＩＴＳＶＯＬＴＡＧＥＳＥＮＳＩＴＩＶＥＰＲＯＰＥＲＴＩＥＳ①ＣｈｅｎＪｉａｎｘｕｎ，ＺｈａｏＲｕｉｒｏｎｇａｎｄＪｉａｎｇＨａｎｙｉｎｇＩｎｓｔｉｔｕｔｅｏ...The method of preparing large grain ZnO powder by solgel method for making low voltage sensitive ZnO ceramics were put forward. The ceramics have been made from this ZnO powder. XRD, IR, DTA, SEM, TEM were used to study the mechanisms of solgel method by using ZnSO4 as the primary material, Na2CO3 as the precipitating agent. The voltage sensitive properties of the ceramics were determined. The results showed that it is feasible to prepare large grain ZnO powder by using the properties of hard agglomerate that easily occurs in the course of dehydrating. The ZnO powder prepared by this method not only has a high sintering activity, but also easily, efficiently reaches the goal of lowering the breakdown voltage.

关 键 词：SOLGEL large grain ZNO powder VOLTAGE SENSITIVE ceramic VOLTAGE SENSITIVE PROPERTIES 

分 类 号：TF12[冶金工程—粉末冶金]