METHOD FOR PRODUCING A COMPOSITE MATERIAL WB-WC-AlO FROM A SCHEELITE CONCENTRATE OF THE FAR EAST REGION Russian patent published in 2021 - IPC B22F3/23 C22C1/05 

FIELD: powder metallurgy.

SUBSTANCE: invention relates to powder metallurgy, in particular, to production of a powder composite material W₂B₅-WC-Al₂O₃. The material can be used in production of carbide materials for manufacture of wear-resistant parts of mechanisms, cutting and drilling tools. A charge is prepared by mixing powders of a scheelite concentrate containing tungsten oxide (WO₃), boron carbide (B₄C), aluminium (Al) and carbon black (C) at the following ratio in the mass fractions of WO₃B₄C:Al:C=1:(0.1 to 0.15):(0.25 to 0.27):0.01. Thermal recovery is then executed by means of a single-stage SHS process.

EFFECT: production of a composite material from tungsten borides and carbides from the ore concentrate without energy consumption is achieved.

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