A highly wear resistant sintered, hot pressed, or otherwise compacted ceramic composite material is described, consisting of two discrete phases of the form AlxMgyB14 where x and y ≦1 or like hard, orthorhombic compounds, and TiB2 or like Group IVB transition metal di-borides, and with an unexpectedly high contentof transition metal di-boride in the range from 40 to 90 percent (28 to 85 volume percent).
US 7,517,375 B2
Iowa State University Research Foundation, Inc.
Cook, Bruce Allan; Harringa, Joel Lee; Russell, Alan Mark; Peters, Justin S.; and Ahmed, Atiq, "Wear-resistant boride composites with high percentage of reinforcement phase" (2009). Iowa State University Patents. 79.