电沉积Ni-W-P基纳米微粒复合镀层的组织与结构研究  

Structure of Electrodeposited Ni-W-P Based Nano-particles Composite Coatings

作　　者：郭忠诚[1] 何丽芳[1] 

机构地区：[1]昆明理工大学冶金新材料与表面工程研究开发中心,云南昆明650093

出　　处：《电镀与精饰》2010年第12期1-5,共5页Plating & Finishing

基　　金：国家自然科学基金资助(5974065);教育部全国百篇优秀博士学位论文作者专项基金资助(2005035)

摘　　要：电沉积Ni-W-P基纳米微粒复合镀层的表面形貌和相结构分析表明:镀液pH的增大,镀层表面粗糙,但镀层较厚,稀土的加入能有效细化晶粒。(Ni-W-P)-SiO2、(Ni-W-P)-CeO2纳米微粒复合镀层在镀态时是非晶态结构,而(Ni-W-P)-CeO2-SiO2纳米微粒复合镀层在镀态时是混晶结构。热处理后的(Ni-W-P)-CeO2-SiO2复合镀层是晶态结构。Ni3P相的衍射峰加强,这说明随着热处理温度的升高,镀层的非晶态形态逐渐减弱,镀层逐渐向晶态转变。The analytical results of surface morphologies and mi crostructure show that the pH value of electrolyte bath has a considerable e ffect on surface morphologies of the coating.With the increase in pH value,the roughness and thickness of the coatings are raised.The composite coating with the addition of rare earth has a fine grain size.In as-deposited state,（Ni-W-P）-SiO2 and（Ni-W-P）-CeO2 nano particles composite coatings are in am orphous while Ni-W-P-CeO2-SiO2 nano particles composite coating is in am orphous and crystalline mixture state.After heat treatment,Ni-W-P-CeO2-S iO2 nano particles composite coating is in crystalline structure,and the inte nsity of Ni3P peak is increased.All these results show that the structure of the composite coatings changes from amorphous to crystalline state with the incr easing of heat treatment temperature.

关 键 词：电沉积 NI-W-P 复合镀层 组织与结构 纳米微粒 

分 类 号：TQ153.2[化学工程—电化学工业]