Compact of boron-doped diamond and method for making same
US4268276A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 13, 1979 |
| Grant date | May 19, 1981 |
| Priority date | — |
| Expiry date | Feb 13, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2237/84
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In one embodiment, a compact for tools, such as cutting, drilling, wire drawing and shaping tools, consists essentially of a porous mass of self-bonded, boron-doped diamond particles and a catalyst-solvent material. The method for making such a compact comprises the steps of bonding a mass of boron-doped diamond particles, aided by a catalyst-solvent material, under high temperatures and high pressures (HP/HT). In another embodiment, a composite compact, which is made in a similar manner to the first embodiment, consists essentially of (i) a layer of a porous mass of self-bonded, boron-doped diamond particles and catalyst-solvent material; and (ii) a substrate layer of cemented carbide bonded to the diamond layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.