Effects of plasma treated TiO_2 nanoparticles on Zn-TiO_2 composite coating

In order to raise the content of the nonmetallic particles in composite plating,high hardness and good wear resistance composite coating was prepared.Nano TiO2was processed in N2plasma,then added to the electricity galvanized liquid Zn-TiO2composite electroplating.This paper studies the current efficiency,coating hardness and plating coating wear resistance.From the research:when nano TiO2was processed in N2plasma, the microhardness of Zn-TiO2composite coating increased from 165to 180Hv,and the wear-resisting coefficient of Zn-TiO2composite coating increased from 0.75to 0.9.Adding the plasma treatmented TiO2can improve more than 36%the current efficiency in the electroplating process than without plasma treatment.