CoB2W2

CoB₂W₂ is a cobalt-tungsten boride composite—a hard, refractory intermetallic compound combining cobalt and tungsten boride phases. This material belongs to the family of transition metal borides, which are engineered for extreme hardness and thermal stability at elevated temperatures. The dual-phase microstructure leverages cobalt's toughness with tungsten boride's exceptional hardness, making it a candidate for wear-resistant and high-temperature applications where conventional cemented carbides or tool steels fall short. While not yet mainstream in production, such boride composites are active research subjects in cutting tool development, abrasive applications, and thermal barrier systems.