Submicron Tungsten Powder with Violet Tungsten Oxide via the Circulatory Oxidization-Reduction Method

摘要：

　　Submicron tungsten powder is obtained through oxidation twice and reduction three times.The samples are characterized by laser particle size analyzer and scanning electron microscope (SEM).Violet tungsten oxide (VTO) is prepared with ammonium paratungstate (APT) in the argon gas.Tungsten powder is obtained with VTO through deoxidation in the hydrogen gas (Rate of purity: 99.99%, dew point:-40℃), and tungsten powders are oxidized in the air.Tungsten oxide WO3) is reduced into tungsten powders in hydrogen gas again.The routes are repeated.The volume percent content of submicron tungsten powder between 0.1 μm and 1.0 μm is 95.73 %.

关键词： Violet tungsten oxide Submicron tungsten powder Circulatory oxidization-reduction

作者: Xiaoming Fu

作者单位: The 3rd Department of Suqian College,Suqian Jiangsu 223800,P.R.China

会议类型: 国际会议

会议名称: 2012 China Functional Materials Technology and Industry Forum(2012中国功能材料科技与产业高层论坛)(CFMTIF2012)

会议地点: 昆明

会议语种:英文

页码: 251-254

在线出版日期: 2012-11-09（万方平台首次上网日期，不代表论文的发表时间）