Patent ID: 7959887

Claim:
A method for manufacturing a diamond composite, comprising a) mixing diamonds with additives, the mixture comprising at least 50 wt % and less than 95 wt % of diamonds and more than 5 wt % additives, b) forming a work piece from the mixture using a pressure of 300 to 700 MPa, c) heating the formed work piece to at least 300° C. for removing possible water and wholly or partially removing additives, d) heating the work piece and controlling the heating temperature and heating time so that a certain desired amount of graphite is created by graphitization of diamonds, wherein the amount of graphite created by graphitization is 3-50 wt % of the amount of diamond, e) infiltrating silicon or silicon alloy into the work piece, the infiltration of silicon or silicon alloy being performed at a temperature below 1900° C. and a pressure less than 50 bars, and f) heating the infiltrated work piece to form silicon carbide, or other carbides thereby creating a final diamond composite.