中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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://WOS:000264905700019
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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