발간논문

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Vol.39, No.8, 894 ~ 901, 2001
Title
Composite Materials : Formation Mechanism of Electrodeposited Ni-SiC Composite Coatings
송민규M . K . Song,안종관J . G . Ahn,이응조E . C . Lee
Abstract
Codeposition behaviors of silicon carbide particles and nickel onto a steel in nickel Watts baths have been investigated using a rotating disc electrode. The zeta potential measurement and adsorption behavior of nickel ions onto the silicon carbide(SiC) particles suggests that SiC particles were attracted to the cathode after an adsorption of positive nickel ions in the bath. The polarization studies indicated that the addition of SiC particles enhanced the mass transfer of nickel ions onto the cathode surface and thus increased the current density. The SiC content in nickel-silicon carbide (Ni-SiC) deposits increased with increasing rotation speed and applied voltage.
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