Ni/α-Al_2O_3纳米复合电镀工艺的研究 第一部分──纳米α-Al_2O_3浆料及其镍基复合镀液的制备  

Study on Ni/α-Al_2O_3 nanocomposite plating Part Ⅰ——Preparations of α-Al_2O_3 nanosuspension and its Ni-based electrolyte

作　　者：刘建平 高中平 彭元芳 赵国鹏 曾振欧 

机构地区：[1]广州市二轻工业科学技术研究所,广东广州510170

出　　处：《电镀与涂饰》2007年第3期38-41,共4页Electroplating & Finishing

基　　金：广州市科技攻关项目(2002Z2-D2011);广州电沉积开放实验室资助项目。

摘　　要：采用超声分散和高剪切乳化分散,以及加入一定的分散剂,制备了高浓度(w=15%)的纳米α-Al2O3浆料。该浆料中粉体粒度小,分布范围宽(D(50)=191.3nm),Zeta电位大(+44.3mV),浆料稳定性好(180天无沉降)。采用该浆料制备的镍基纳米复合镀液中,纳米α-Al2O3仍保持较好的分散状态,D(50)=252.5nm,Zeta电位仍为正值(+8.9mV),易于在复合电镀过程中进入复合镀层。A suspension of nano α-Al2O3 was prepared by ultrasonic dispersion coupled with high-shear emulsifying dispersion in the presence of dispersing agent. Particles in the suspension have a small size and narrow particle size distribution [D（50） = 191.3 nm]. The suspension has good storage stability （no sedimentation occurs in 180 days）. Nano α-Al2O3 particles in a Ni-based composite plating bath based on the suspension are relatively well dispersed and has a D（50） 252.5 nm and positive Zeta potential （＋8.9 mV）, favorable for incorporating a-Al2O3 particles into deposit.

关 键 词：Α-AL2O3 纳米粒子 复合电镀 浆料 Zeta电位 

分 类 号：TQ153.12[化学工程—电化学工业]