Friday , 14 May 2021

Effect of Bath Temperature on Electrochemical Codeposition of Nickel Silicon Carbide Composite

Author Details
Kailash Hamal1, Gobinda Gyawali3, Armila Rajbhandari (Nyachhyon)*2, Soo Wohn Lee3 
1,2Central Department of Chemistry, Tribhuvan University, Kirtipur, Kathmandu, Nepal
3Research Centre for Eco Multi functional Nano Materials, Global Research Laboratory, Sun Moon University, Korea.

Ni-SiC composite has been prepared by codeposition of nano SiC particles on nickel matrix by electrochemical codeposition technique. Nickel sulfamate bath was used along with grain modifier saccharine and cationic surfactant Cetyltrimethylammonium bromide (CTAB). The effect of bath temperature was systematically studied and optimized. The result revealed that, 50⁰C of bath temperature is optimum temperature for the electrochemical codeposition of Ni–SiC. As prepared sample at 50⁰C showed better surface morphology with uniform distribution of SiC particle with appropriate amount. Elemental Analysis showed the incorporation of nano SiC particle in the ratio of Ni:Si:C in 78:2:20 in atomic weight percentage. Excellent microhardness  and  low coefficient of friction  were observed only in the sample prepared at 50⁰C bath temperature.
Keywords: Electrochemical Codeposition, Surface Morphology, Micro hardness, Coefficient of   Friction

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