硫酸铜活化粉煤灰空心微珠的化学镀镍磷  

Nickel-Phosphorous Electroless Plating of Fly Ash Cenospheres Activated by Copper Sulfate Solution

作　　者：胡凯龙[1] 曾爱香[1] 罗丽[1] 

机构地区：[1]长沙理工大学物理与电子科学学院,湖南长沙410004

出　　处：《材料保护》2012年第8期63-64,73,共2页Materials Protection

基　　金：省重点学科建设项目资助

摘　　要：粉煤灰空心微珠化学镀镍磷合金用作电磁吸波材料,成本低、吸波性能好。以硫酸铜代替氯化钯、硝酸银作活化剂,对空心微珠化学镀覆镍磷合金。通过扫描电子显微镜(SEM)、X射线能谱仪(EDS)、X射线衍射仪(XRD)对空心微珠化学镀Ni-P合金前后的表面形貌、结构、成分进行表征分析。结果表明,粉煤灰空心微珠经硫酸铜活化后可以镀覆完整的Ni-P合金层,其主要成分是莫来石、单质Ni和Ni2P。Fly ash cenospheres coated with electroless Ni-P alloy coating can be used as electromagnetic absorbing materials and possess low cost and good electromagnetic absorbing performance.Thus copper sulfate was adopted as an activator to replace palladium chloride and silver nitrate used for Ni-P electroless plating of cenospheres.The morphology,elemental composition,and phase structure of the cenospheres before and after Ni-P electroless plating were analyzed with a scanning electron microscope,an energy dispersive spectrometer,and an X-ray diffractometer.Results indicate that fly ash cenospheres can be completely coated with Ni-P electroless coating after they are activated by copper sulfate solution,and the coated cenospheres mainly consist of mullite,metallic Ni and Ni2P.

关 键 词：化学镀Ni—P 硫酸铜活化剂 粉煤灰空心微珠 

分 类 号：TQ153.2[化学工程—电化学工业]