2007•Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIERequires access

Study on micro-hardness of electroless composite plating of Ni-P with SiC nano-particles

Yong Sun, Zhaoguo Zhang, Jiamin Li, Donghui Xu

Abstract

In this paper, a Ni-P electroless composite coating containing nano SiC particles was produced. The wearability of the composite coating was studied. Temperature, PH of the plating liquid and the concentration of SiC nanoparticles in the plating liquid were taken as parameters and the experiment with three factors and five levels was designed through the method of quadratic orthogonal rotation combination. SiC nanoparticles were dispersed by ultrasonic. The influence of the testing parameters on the hardness of the coating was studied intensively. The optimal parameters were obtained when the temperature is 86±1°C, PH is 6±0.5 and the concentration of SiC nanoparticles is 6g/L. The maximal hardness of the coating is over 1700HV after heat treatment.

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Key concepts: Composite number, Plating (geology), Materials science, Electroless plating, Nano-, Indentation hardness, Metallurgy, Composite material