期刊
ELECTROCHIMICA ACTA
卷 50, 期 23, 页码 4544-4550出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2004.10.090
关键词
nickel composite coatings; silicon carbide; pulse plating; wear; preferred orientation
Nickel matrix composite coatings containing micro and nano-sized SiC particles were prepared from an additive-free Watts' type solution under direct and pulse current conditions, in order to study the correlation between SiC particles embedding and the tribological behaviour of deposits. The wear properties of Ni/SiC composite coatings were shown to depend on the type of current, the size of the embedded particles, the weight fraction of codeposited particles, the microstructural modifications induced by codepositing SiC particles and the plating conditions. It was proved that the presence of SiC particles influences the adsorption-desorption phenomena occurring at the metal-catholyte interface during electrocrystallization and, synergically with the plating conditions, modifies the deposits microstructure thus affecting wear properties. (C) 2005 Elsevier Ltd. All rights reserved.
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