ARTICLE, MAINLY CUTTING TOOL, CONTAINING SINTERED BASE OF TUNGSTEN CARBIDE BASE AND DIAMOND COATING Russian patent published in 1994 - IPC

FIELD: cutting tools. SUBSTANCE: diamond coating produced by synthesis in gas phase and base additionally has at least one of compounds taken from the group containing silicon and boron carbide and nitride in the amount of 3-70 mas. % . Base may additionally contain one of the following compounds: carbide, oxide, nitride, carbonitride, carbonate, boride and organic substance of, at least, the following elements of groups IIa, IIIa, IVa, IIIb and IV of Periodic system of element in the amount of 0.5-10 mas.%. EFFECT: higher efficiency. 5 cl, 1 tbl