Techniques for forming polycrystalline, superabrasive materials, and related methods and cutting elements for earth-boring tools
US12172215B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2021 |
| Grant date | Dec 24, 2024 |
| Priority date | — |
| Expiry date | Oct 3, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/25
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Methods of making cutting elements for earth-boring tools may involve intermixing discrete particles of superabrasive material with a binder material in a solvent to form a slurry. The slurry may be vacuum dried or spray dried to disaggregate individual precursor agglomerates including a group of discrete particles suspended in a discrete quantity of the binder material from one another. The precursor agglomerates may be sintered while exposing the precursor agglomerates to a quantity of catalyst material to form agglomerates including discrete quantities of polycrystalline, superabrasive material while inhibiting formation of inter-granular bonds among the agglomerates themselves. The agglomerates may subsequently be sintered while exposing the agglomerates to another quantity of catalyst material to form a table for the cutting element including inter-granular bonds among adjacent grains of the agglomerates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.