The electroless plating of Ni on the diamond surface

Nickel layer was plated on diamond powder surface by electroless plating in order to keep diamond powders from falling.The pretreatment process and plating formula were confirmed.The structure and surface morphology of the coating was investigated by XRD and SEM analysis.Results showed that the coating on the diamond surface was relatively thin,uniform and pure by first plating.In the second plating,the Ni peaks in X-ray diffraction patterns of powders were stronger with the increasing times of electroless plating.The substrate was completely coated with Ni.The coating was thicker and the edges of diamond became smoother.