Methods of fabricating superabrasive articles
AssigneeUS Synthetic Corporation
InventorMohammad N. Sani
Life of this patent
Estimating the term…
Abstract
In one embodiment of the present invention, a method of fabricating a superabrasive article is disclosed. A mass of unsintered diamond particles may be infiltrated with metal-solvent catalyst from a metal-solvent-catalyst-containing material to promote formation of a sintered body of diamond grains including interstitial regions. At least a portion of the interstitial regions may also be infiltrated with silicon from a silicon-containing material. The silicon reacts with the sintered body to form silicon carbide within a portion of the interstitial regions.
Claims10
A method of fabricating a superabrasive article, comprising:
- in a high-pressure/high-temperature process, infiltrating a mass of unsintered diamond particles with metal-solvent catalyst from a metal-solvent-catalyst-containing material to promote formation of a sintered body of diamond grains including interstitial regions;
- during the high-pressure/high-temperature process, infiltrating at least a portion of the interstitial regions of the sintered body with silicon from a silicon-containing material;
- during the high-pressure/high-temperature process, reacting the silicon with the sintered body to form silicon carbide within the at least a portion of the interstitial regions;
- prior to the act of infiltrating the mass of unsintered diamond particles with the metal-solvent catalyst from the metal-solvent-catalyst-containing material:
- positioning the metal-solvent-catalyst-containing material between the mass of unsintered diamond particles and the silicon-containing material;
- and
- positioning the silicon-containing material between the metal-solvent-catalyst-containing material and a substrate.
A method of fabricating a superabrasive article, comprising:
- in a high-pressure/high-temperature process, infiltrating a mass of unsintered diamond particles with metal-solvent catalyst from a metal-solvent-catalyst-containing material to promote formation of a sintered body of diamond grains including interstitial regions;
- during the high-pressure/high-temperature process, infiltrating at least a portion of the interstitial regions of the sintered body with silicon from a silicon-containing material;
- during the high-pressure/high-temperature process, reacting the silicon with the sintered body to form silicon carbide within the at least a portion of the interstitial regions;
- prior to the act of infiltrating the mass of unsintered diamond particles with the metal-solvent catalyst from the metal-solvent-catalyst-containing material:
- positioning the metal-solvent-catalyst-containing material between the mass of unsintered diamond particles and the silicon-containing material;
- and
- positioning the mass of unsintered diamond particles between the metal-solvent-catalyst-containing material and a substrate.
Dependencies are inferred from the claim text.