The intensity of wearing of rock-breaking elements from diamond-containing materials in dependens of chemical composition and a method of diamond coating - A. L. Maistrenko; A. P. Zakora; R. S. Shmehera; M. V. Suprun; O. P. Vynohradova; A. S. Bieliaiev; H. A. Petasiuk; Yu. Rostotskyi; A. M. Panova; S. D. Zabolotnyi (Tooling materials science, 2017)