联氨化学镀法制备镍包覆铝复合粉末的新工艺  

New process for the preparation of Ni coated Al composite powder by hydrazine electroless plating

作　　者：贺振华[1] 张东明[1] 张联盟[1] 

机构地区：[1]武汉理工大学材料复合新技术国家重点实验室

出　　处：《化工新型材料》2010年第8期46-47,124,共3页New Chemical Materials

基　　金：武汉理工大学材料复合新技术国家重点实验室自主研究课题(2008-ZD-3)

摘　　要：以联氨为还原剂,使用化学镀方法,采用联氨最后加入的新工艺,成功的制备了镍包覆铝复合粉末。目的是彻底消除联氨化学镀中镀液的不稳定性,让联氨化学镀法能工业应用于粉体包覆。采用X射线衍射,扫描电子显微镜及透射电镜对镍包覆铝复合粉末进行分析,结果表明包覆上去的镍晶粒尺寸较小,并且呈球状,粒径为100~1μm之间,包覆效果良好。提出了联氨化学镀新工艺的非稳态镀覆机理。Hydrazine as the reducing agent,by chemical plating,using new process of hydrazine being add at last,we successfully prepared Ni coated Al composite powders.We purposed to eliminate the instability of plating baths completely and make hydrazine electroless plating apply in industrial powder coating.By analyzing on Ni coated Al composite powders through XRD,SEM and TEM,the results showed that the coated Ni had litter grain size,appearing spherical shape,particle size between 100nm and 1μm,excellent coating effects.Put forward the unsteady plating mechanism of new process for hydrazine electroless plating.

关 键 词：联氨化学镀 镍包覆铝 工业化 工艺条件 非稳态镀覆 

分 类 号：TQ13[化学工程—无机化工]