La对电沉积纳米镍组织结构和耐蚀性的影响  

Effect of La on Microstruture and Corrosion Resistance of Electrodeposite Nanocrystalline Nickel

作　　者：柯跃前[1] 

机构地区：[1]泉州师范学院理工学院,福建泉州362000

出　　处：《泉州师范学院学报》2008年第4期63-66,共4页Journal of Quanzhou Normal University

基　　金：福建省科技厅重点项目(2006H0020);福建省自然科学资金资助项目(0410011)

摘　　要：添加不同含量的稀土氯化物LaCl3,制备了纳米晶体镍,采用透射电镜(TEM)和环境扫描电镜(ESEM)观察镀层的微观组织和结构.结果表明:添加LaCl3可以明显提高镀层表面光洁度、耐蚀性能,在加入1 g/L LaCl3时,镀层具有最佳耐蚀性能.The rare earth compound LaCl3 （ReC） was added to the modified Watts bath to prepare nanocrystalline Ni by the use of pulse electrodeposition. The microstructure was analysed by TEM and SEM. The results are shown as follows：The surface fineness of the coating is improved by the addition of ReC, at same time the corrosion resistance of coatings is improved greatly. The best corrosion resistance will be obtained when the concentration of LaCl3 is 1 g/L.

关 键 词：电沉积 纳米晶体镍 稀土 耐蚀性 

分 类 号：TG174.44[金属学及工艺—金属表面处理] TQ153.2[金属学及工艺—金属学]