FIELD: superhard materials. SUBSTANCE: invention, in particular, relates to diamond- containing composites and can be applied when manufacturing abrasive tools. Blank of diamond-containing charge with 95-100% diamond crystals is formed and thermally treated under conditions providing graphitization of diamond to give intermediate product in which diamond concentration is lowered but not below 50%. Intermediate product is then impregnated with molten silicon. EFFECT: enabled manufacturing large- size shaped objects, reduced gas media consumption , and increased productivity. 12 cl, 1 dwg, 1 tbl, 4 ex
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