Study of electroless Ni-P-nanometer diamond composite coatings

Composite coating of Ni-P-Nanometer diamond was prepared by electroless pla ting. The effects of agitation mode, concentration of nanometer diamond par ticles and depositing speed were investigated. The results show that microh ardness of the composite coating is greatly increased by the incorporation of nanometer diamond particles. The composite coating has the same amorphou s structure as Ni-P matrix. Mechanism of the composite depositing process i s discussed.