A ceramic material which is an orthorhombic boride of the general formula: AlMgB14:X, with X being a doping agent. The ceramic is a superabrasive, and in most instances provides a hardness of 40 GPa or greater.
US 6,432,855 B1
Iowa State University Research Foundation, Inc.
Cook, Bruce A.; Harringa, Joel L.; and Russell, Alan M., "Superabrasive boride and a method of preparing the same by mechanical alloying and hot pressing" (2002). Iowa State University Patents. 268.