Methods of fabricating polycrystalline diamond products using a selected amount of graphite particles
US8986408B1 · kind B1 · utility
4Cited by
51References
26Claims
0Family size
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Key dates
| Filing date | Oct 3, 2008 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Jun 7, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Embodiments of the invention relate to polycrystalline diamond (“PCD”) fabricated by sintering a mixture including diamond particles and a selected amount of graphite particles, polycrystalline diamond compacts (“PDCs”) having a PCD table comprising such PCD, and methods of fabricating such PCD and PDCs. In an embodiment, a method includes providing a mixture including graphite particles present in an amount of about 0.1 weight percent (“wt %”) to about 20 wt % and diamond particles. The method further includes subjecting the mixture to a high-pressure/high-temperature process sufficient to form PCD.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.