Polycrystalline diamond composite compact elements and methods of making and using same
US10953468B2 · kind B2 · utility
1Cited by
4References
11Claims
0Family size
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Key dates
| Filing date | Jul 17, 2018 |
| Grant date | Mar 23, 2021 |
| Priority date | — |
| Expiry date | Jul 17, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C2026/006
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A polycrystalline diamond (PCD) composite compact element has a body of polycrystalline diamond material and a cemented carbide substrate bonded to the body of polycrystalline material along an interface. The cemented carbide substrate has tungsten carbide particles bonded together by a binder material, the binder material including an alloy of Co, Ni and Cr. The tungsten carbide particles form at least 70 weight percent and at most 95 weight percent of the substrate and the binder material has between about 60 to 90 wt. % Ni, between about 10 to 40 wt. % Co, and about 0.25 to 1.0 wt % Cr3C2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.