Patent ID: 6938815

Claim:
A composite material for a product having a specified shape and size comprising a composite matrix reinforced by an additive which has a melting point of at least 300° C. greater than that of the composite matrix: the additive comprising a plurality of solid elements substantially uniformally and stably distributed in the composite matrix for forming the product; the composite matrix contacting and bonding together the plurality of the solid elements at a plurality of interfacial contacting and bonding regions inside the product; each of the plurality of the interfacial contacting and bonding regions between the composite matrix and a respective solid element being metallurgically graded thereby generating a non-abrupt but chemically graded composition profile normally of the respective interfacial contacting and bonding region to minimize stress and strain gradients there across; and each interfacial contacting and bonding region being continuously uniform, 100% dense, void free under 1000 times magnification and efficiently graded in chemical composition profile to withstand without failure a temperature of at least close to the melting point of the composite matrix.