Patent ID: 9381620
Filing Date: 2016-07-05
CPC Classification: B22F,B24D,C04B,C22C,E21B,F16C

Claim Text:
1. A method of fabricating a polycrystalline diamond compact, comprising: providing an at least partially leached polycrystalline diamond body including a plurality of bonded diamond grains exhibiting diamond-to-diamond bonding therebetween and defining a plurality of interstitial regions; forming an assembly including the at least partially leached polycrystalline diamond body, a substrate, and an at least carbon-saturated infiltrant layer positioned between the at least partially leached polycrystalline diamond body, the at least carbon-saturated infiltrant layer including at least carbon-saturated material at least saturated with non-diamond carbon; and subjecting the assembly to a high-pressure/high-temperature process effective to infiltrate at least a portion of the plurality of interstitial regions of the at least partially leached polycrystalline diamond body with at least a portion of the at least carbon-saturated material from the at least carbon-saturated infiltrant layer.