Sintering of thick solid carbonate-based PCD for drilling application
US10352105B2 · kind B2 · utility
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11References
13Claims
0Family size
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Key dates
| Filing date | Sep 26, 2016 |
| Grant date | Jul 16, 2019 |
| Priority date | — |
| Expiry date | Dec 7, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/46
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of making a polycrystalline diamond compact includes forming multiple layers of premixed diamond particles and carbonate material, where the carbonate material includes an alkaline earth metal carbonate, and where each layer has a weight percent ratio of diamond to carbonate that is different from adjacent layers. The layers are subjected to high pressure high temperature conditions to form polycrystalline diamond.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.