Diamond particles in the Ni sulfamate electrolyte solution were deposited with nickel onto steel wire and codeposition mechanism of diamond and nickel was studied also under rotating disc electrode geometry. Composite coating is the method that codepo...
Diamond particles in the Ni sulfamate electrolyte solution were deposited with nickel onto steel wire and codeposition mechanism of diamond and nickel was studied also under rotating disc electrode geometry. Composite coating is the method that codeposit inert particles in the electrolyte with metal matrix to improve material properties such as wear resistance, corrosion resistance and hardness. Effect of potential, initial diamond concentration and rotating speed on Ni-diamond composite coatings were studied.
Increasing of initial diamond concentration and rotating speed enhance the codeposition ratio of diamond and mass transfer of nickel ions. As diamond in the deposits increase, hardness of deposits increase, and friction coefficient is lowered. Zeta potential of deposits increase, and friction coefficient is lowered.