Sd. Gorpinchenko et al., BREAKDOWN OF AC COATINGS ON ION-IMPLANTATION-MODIFIED METAL-ALLOYS WITH A JET OF ABRASIVE PARTICLES, DIAMOND AND RELATED MATERIALS, 3(4-6), 1994, pp. 779-782
N+ and C+ were implanted (30 keV, 10(17)-10(18) cm-2) into amorphous d
iamond-like coatings (DLCs) produced by pulse-arc sputtering and into
the substrates (stainless steel and hard tungsten-cobalt alloy) on whi
ch the DLCs were deposited. Wear resistance of the implanted DLCs and
that of DLCs on the implanted substrates were studied. It is shown tha
t ion beams stimulate graphitization of the DLCs and thus make the coa
tings weaker. By contrast, implantation of the ions into the substrate
s enhances wear resistance of DLCs, thanks to an increase in the mater
ial hardness under the coating and improvement of adhesion.