納米級陶瓷粉體膠粒性質與形成鎳基複合電鍍材料之特性分析(1/2)
Date Issued
2000
Date
2000
Author(s)
DOI
892216E002016
Abstract
This research investigated the electrokinetic behavior and stability of nano-sized SiC particles suspended in various
electroplating solutions. Then, SiC powders electrical co-deposited with Ni in a sulfamate bath to form composite coatings.
The negative surface of SiC in pH 4~8 will adsorb the Ni2+ ions in the suspensions which contain nickel chloride or nickel
sulfamate as electrolytes and the surface charge of SiC reverse to positive. In high concentrated electrolyte of nickel
sulfamate suspension, the SiC particles can still maintain positive charge with a low SC reading. The microstructure and
mechanical analysis appear that the SiC particles can codeposition with Ni uniformly. The grain growth of Ni in the matrix
can be inhibited by the SiC to form a uniaxial grain of 150 nm in average. The hardness and wear resistance of the plating
layers are improved by the addition of the SiC and the thermal resistance significantly increases compared with blank
sample.
Publisher
臺北市：國立臺灣大學材料科學與工程學研究所
Type
report
File(s)![Thumbnail Image]()
Loading...
Name
892216E002016.pdf
Size
369.73 KB
Format
Adobe PDF
Checksum
(MD5):80d9f32210417d91cfe930494be01ef8