Patent ID: 8372334
Filing Date: 2013-02-12
Classification: B22F,C22C

Abstract:
1. A method for making a diamond-bonded construction comprising the steps of: treating a diamond-bonded body having a material microstructure comprising a matrix phase of bonded-together diamond grains and interstitial regions disposed between the diamond grains, wherein a catalyst material used to form the diamond-bonded body during a first high pressure/high temperature condition is disposed within the interstitial regions, wherein during the step of treating the catalyst material is removed from interstitial regions of the entire diamond-bonded body; and introducing an infiltrant material into the interstitial regions of a first region of the diamond-bonded body removed of the catalyst material and subjecting the diamond-bonded body to second high pressure/high temperature condition to form a reaction product between a reactive material in the infiltrant material and the diamond grains, wherein the reaction product is disposed within the interstitial regions removed of the catalyst material.