Diamond compacts and process for making same

Details Diamond compacts and process for making same Diamond compacts and process for making same

B - Operations, Transporting

24

D

57/16

B24D 3/04 (2006.01) B24D 18/00 (2006.01)

Patent

CA 1289367

ABSTRACT A process for producing a diamond compact having a compressive strength of at least 10 kbars, the process being performed in the graphite stability field at a maximum pressure of 40 kbars at a temperature of between 1100°C and 1600°C for a time which permits plastic deformation of the diamond crystals giving face-to-face contacts therebetween and a substantial or complete degree of chemical equilibration between the bonding agent and the diamond crystals. Bonding agents are selected from elements and alloys which produce a bond with diamond having a melting point above 1600°C and which inhibit the formation of free graphite in the compact.

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