FIELD: performing operations.
SUBSTANCE: invention relates to a method of preparing the surface of a substrate from a refractory material for applying a diamond coating by gas-jet deposition. Erosion treatment of substrate surface made of refractory material is carried out for 10-15 minutes with abrasive powder in the form of particles with size from 23 to 50 mcm and microhardness from 19 to 36 GPa. Then, surface of said substrate is cleaned by treating the surface of said substrate with atomic hydrogen immediately before application of diamond coating.
EFFECT: higher erosion resistance of diamond coating.
10 cl, 4 dwg, 2 tbl, 3 ex
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