Patent ID: 8673453
Filing Date: 2014-03-18
Classification: C22C,H01L,Y10T

Abstract:
1. A metal matrix composite comprising a matrix containing diamond particles, said diamond particles having an interfacial coupling layer integrally bonded to the diamond particles, wherein said interfacial coupling layer is wettable by said metal and is formed by chemical vapor reaction with said respective diamond particles, said interfacial coupling layer having a substantially uniform thickness and composition, and a thermal conductivity close to that of diamond, wherein the content of the coated diamond particles in the composite is 10-60 vol % of the total, and the metal employed is selected from the group consisting of an alloy of magnesium and copper, an alloy of aluminum and magnesium, an alloy of aluminum and copper, and an alloy of aluminum, magnesium and copper, whereupon the metal matrix composite has a thermal conductivity greater than about 300 W/m.k.