Beneficial effects of Co(2+) on co-electrodeposited Ni-SiC nanocomposite coating
文献类型：期刊论文
| 作者 | X. Y. Yang ; K. J. Li ; X. Peng ; F. H. Wang |
| 刊名 | Transactions of Nonferrous Metals Society of China
 |
| 出版日期 | 2009 |
| 卷号 | 19期号:1页码:119-124 |
| 关键词 | Ni-SiC Co(2+) addition co-electrodeposition nanocomposite composite coatings electrochemical codeposition corrosion-resistance oxidation behavior inert particles nickel matrix |
| ISSN号 | 1003-6326 |
| 中文摘要 | Ni-SiC nanocomposites were fabricated by co-electrodeposition of nickel with silicon carbide nanoparticles on the pure nickel substrates from a nickel sulfate bath with and without the addition of Co(2+). The presence of Co(2+) in the electrolyte modifies the Ni matrix to Ni-Co solid solution matrix. It helps to refine the grain size of the nanocomposite coating and improves the content of SiC dispersed in the matrix, and consequently results in higher microhardness. The cathodic polarization curves and electrochemical impedance spectroscopy (EIS) at cathodic potential were investigated in the electrolyte with and without Co(2+). A modified cathodic polarization curve with a positive shift in reduction potential and a smaller capacitive loop of EIS are observed. These are attributed to the strong adsorption of Co(2+) on the SiC nanoparticles. Consequently, it increases the forces of electrostatic attraction between the SiC nanoparticles and the cathode, which promotes the codeposition of SiC nanoparticles in the matrix. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/32495]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | X. Y. Yang,K. J. Li,X. Peng,et al. Beneficial effects of Co(2+) on co-electrodeposited Ni-SiC nanocomposite coating[J]. Transactions of Nonferrous Metals Society of China,2009,19(1):119-124. |
| APA | X. Y. Yang,K. J. Li,X. Peng,&F. H. Wang.(2009).Beneficial effects of Co(2+) on co-electrodeposited Ni-SiC nanocomposite coating.Transactions of Nonferrous Metals Society of China,19(1),119-124. |
| MLA | X. Y. Yang,et al."Beneficial effects of Co(2+) on co-electrodeposited Ni-SiC nanocomposite coating".Transactions of Nonferrous Metals Society of China 19.1(2009):119-124. |
入库方式： OAI收割
来源：金属研究所
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