Thermally stable diamond abrasive compact body
US4940180A · kind A · utility
Inventor
Key dates
| Filing date | Aug 4, 1989 |
| Grant date | Jul 10, 1990 |
| Priority date | — |
| Expiry date | Aug 4, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S76/12
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of producing a thermally stable diamond compact having a metal layer bonded to a surface thereof is provided. The thermally stable diamond compact comprises a mass of diamond particles containing diamond-to-diamond bonding and a second phase uniformly distributed through the diamond mass. The metal of the metallic layer is molybdenum, tantalum, titanium or like high melting refractory metal, nickel or an alloy containing a dominant amount of any one of these metals. The method includes the steps of: PA1 (i) preparing an assembly of a metallic layer, a mass of diamond particles on the metallic layer and a layer of the component or components necessary to form the second phase on the diamond particles, this component or these components having a melting point lower than that of the metallic layer; and PA1 (ii) placing the assembly in a canister and subjecting the assembly to conditions of elevated temperature and pressure for a period sufficient to produce the diamond abrasive compact, the temperature being first raised to a level where the component or components for the second phase are molten allowing their infiltration into the diamond mass and the compact to be produced…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.