[en] We investigated the properties, regularities of the phase- and structure-formations and the strength characteristics of composite ceramics of the W₂B₅-TiB₂B₄C system. The promising technology of the reaction hot-pressing with the possibility of replacing up to 50% of metal borides in the starting material by a cheap blend containing the appropriate metals, oxides, and boron carbide. Chemical reactions during the sintering of ceramics activate the consolidation and can significantly lower the temperature of hot pressing, which decreases the cost of finished products while maintaining their strength properties.