MATERIALS BASED ON CHROMIUM TETRABORIDE AND METHODS FOR PRODUCTION THEREOF Russian patent published in 2021 - IPC C22C29/14 C22C26/00 B22F7/02 B22F3/12 E21B10/46 

FIELD: chemistry.

SUBSTANCE: invention relates to the field of synthesis of new materials, namely to a material based on chromium tetraboride, the phase composition whereof includes chromium tetraboride, chromium diboride and a binder, wherein the contents of the components are: CrB₄ - 45 to 60%, CrB₂ - 25 to 45%, the binder - 10 to 15%, wherein the binder constitutes a metal boride, or a mixture of borides of metals selected from cobalt, copper, nickel, and aluminium. Also proposed are a variant of the material based on chromium tetraboride, a method for producing the material, a plate, a cutting tool, a drilling tool, and a method for drilling underground rock.

EFFECT: ensured high wear resistance, heat resistance, hardness and simultaneously high bending and compression strength.

65 cl, 3 dwg, 2 tbl, 2 ex