Preparation of core-shell Cu-Ag bimetallic powder via electroless coating

被引：7
|
作者：
Xu Rui [1 ,2 ]
Zhou Kanggen [1 ]
Hu Minyi [1 ]
机构：
[1] Cent S Univ, Coll Met Sci & Engn, Changsha 410083, Peoples R China
[2] Henan Univ Sci & Technol, Coll Chem & Pharmaceut Engn, Luoyang 471003, Peoples R China
来源：
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION | 2009年 / 24卷 / 04期
基金：
中国国家自然科学基金;
关键词：
core-shell; bimetallic powders; electroless coating;
D O I：
10.1007/s11595-009-4637-0
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A novel method of electroless silver coating on copper powders was reported, in which hydrazine was used as the reducing agent, and had some advantages such was used as inhibiting the substitution reaction and reducing consumption of copper powders. In the processes of sensitization and activation, AgNO3 replaces the conventional PdCl2, which solves the impurity of bath. Oxide film on the surface of copper powders was tested by chemical analysis. Ag element tested by XRD and XRF is in the form of Ag-0 and exists on the surface of copper powders, which acts as catalyzer in reduction reaction. Morphology and composition of the coating were characterized by SEM and XRD respectively.
引用
收藏
页码：637 / 639
页数：3
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