کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
192196 | 459737 | 2010 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Bright nickel film deposited by supercritical carbon dioxide emulsion using additive-free Watts bath Bright nickel film deposited by supercritical carbon dioxide emulsion using additive-free Watts bath](/preview/png/192196.png)
This paper is aimed on studying film smoothening effect of supercritical carbon dioxide emulsion (Sc-CO2-E) on nickel film electroplated using an additive-free Watts bath. Morphology of nickel film electroplated with Sc-CO2-E was found to be similar to that of nickel film prepared from electroless plating. Surface roughness (Ra) of nickel film electroplated with Sc-CO2-E was lower than that of nickel film electroplated through conventional method. A minimum Ra was found for nickel film electroplated through conventional method and Sc-CO2-E when increasing current density from 0.010 to 0.150 A/cm2. The minimum Ra was 69.8 nm at 0.020 A/cm2 and 14.0 nm at 0.030 A/cm2, respectively for conventional and Sc-CO2-E case. After the minimum point, increasing rate of Ra increased was lower for Sc-CO2-E case; this was because of higher hydrogen solubility in Sc-CO2. Grain size of nickel film electroplated with Sc-CO2-E was found to be finer than that of conventional case.
Journal: Electrochimica Acta - Volume 55, Issue 22, 1 September 2010, Pages 6469–6475