Study on Preparation Technology of Nickel Powder with Liquid Phase Reduction Method

摘要：

　　Ultrafine nickel powder was pre pared by liquid phase reduction method without dis persant.The hydrazine hydrate was used as there ductant, the nickel sulfate was used as the raw mate rial and NaOH was the pH relator.The influence of the reaction temperature, pH, concentration of Ni2+ ions, mole ratio of N2H4? n20/Ni2+ on the nickel powder particle size, morphology, and the dispersion were studied.The samples were analyzed by the Scanning electron microscope (SEM), Xray diffraction (XRD), laser particle size analysis etc.The results showed that: the high purity and spherical nickel powder with face-centered cubic structure could be prepared when the temperature was 80 (C, pH was 11, the concentration of Ni2+ i ons was 0.5 mol/L, the mole ratio of N2H4? H20/Ni2+ was 4.The average diameter of nickel powder was about 400 nm.

关键词： Nickel powder liquid phase reduction preparation technology Particle size

作者: Lei LI Jing-hong DU Guo-you GAN Ji-kang YAN Jia-min ZHANG Yi-chun LIU Jian-hong YI

作者单位: Faculty of Material Science and Engineering,Kunming University of Science and Technology,Yunnan,Kunming,650093,P R China ;Key laboratory of Advance Materials in Yunnan Province,Kunming,650093,P R China

会议类型: 国际会议

会议名称: The 12th China-Russia Symposium on Advanced Materials and Technologies(第十二届中俄双边新材料新工艺国际会议)

会议地点: 昆明

会议语种:英文

页码: 124-129

在线出版日期: 2013-11-19（万方平台首次上网日期，不代表论文的发表时间）