摩擦辅助喷射电沉积制备纳米晶光亮镍  

Preparation of Bright Nano-Crystalline Nickel via Friction-Aided Jet Electrodeposition

作　　者：朱军[1,2] 田宗军[1,2] 刘志东[1,2] 沈理达[1,2] 黄因慧[1,2] 王桂峰[2] 

机构地区：[1]南京航空航天大学江苏省精密与微细制造技术重点实验室,江苏南京210016 [2]南京航空航天大学机电学院,江苏南京210016

出　　处：《华南理工大学学报（自然科学版）》2011年第11期92-97,共6页Journal of South China University of Technology(Natural Science Edition)

基　　金：江苏省自然科学基金资助项目(BK2009375)

摘　　要：针对传统喷射电沉积技术的不足,提出一种新型的摩擦辅助喷射电沉积技术.分别使用该技术和传统喷射电沉积技术制备了一组镍沉积层,利用XRD、TEM分析了沉积层的组织结构,用显微硬度计测试了沉积层的表面显微形貌和显微硬度,并用振动样品磁强计测试了沉积层的磁性能.结果表明:采用该技术可以制备出表面平整光亮的电沉积层,所制备的镍沉积层具有纳米晶微观结构,平均晶粒尺寸约为10nm,远小于传统喷射电沉积技术制得的沉积层的平均晶粒尺寸;摩擦辅助作用细化了晶粒,改善了沉积层的组织结构,提高了结构层的硬度,沉积层磁性能也有很大改变.In order to overcome the disadvantages of the traditional jet electrodeposition, a novel friction-aided technology was proposed. To make a comparison, nickel deposition layers were prepared by using the proposed and the traditional technologies, respectively. Afterwards, the microstructure, surface morphology, microhardness and magnetic properties of the layers were investigated by means of XRD, TEM, mierohardness test and vibrating-sample magnetic strength test. The results show that the friction-aided technology helps to prepare electrodeposition layer with smooth and bright surface and well-organized structure, that the deposited nickel layers are all in nano-crystalline microstructure whose average size （about 10 nm） is far less than that prepared by the traditional jet electro- deposition technology, and that the friction helps to refine the grains, improve the microstructure, increase the hardness of the deposited layer, and greatly change the magnetic properties of the deposited layers.

关 键 词：喷射电沉积 摩擦 纳米晶 镍 显微形貌 磁性能 

分 类 号：TG662[金属学及工艺—金属切削加工及机床] TQ153[化学工程—电化学工业]