A study of properties of chromium-diamond coatings using nanodiamonds from various producers

The paper addresses the dependence of the key performance parameters of chromium-nanodiamond coatings on the quality of detonation nanodiamonds under study and on the method of their dispersion in an aqueous suspension. It is demonstrated that the best result in terms of the coating microhardness for the coatings prepared by the hard chromium plating method has been achieved with the nanodiamonds produced by NanoCarbon Research Institute (Japan), which indeed form a dispersion of individual particles (about 4-5 nm in size) in water. It is also found out that the best wear resistance is offered by the chromium-nanodiamond coatings deposited using detonation nanodiamonds produced by Tekhnolog SDTB FSUE (Russian Federation).