Composite sintered material
US11680022B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 6, 2018 |
| Grant date | Jun 20, 2023 |
| Priority date | — |
| Expiry date | Jun 11, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/786
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A composite sintered material includes a plurality of diamond grains, a plurality of cubic boron nitride grains, and a remainder of a binder phase, wherein the binder phase includes cobalt, a content of the cubic boron nitride grains in the composite sintered material is more than or equal to 3 volume % and less than or equal to 40 volume %, and an average length of line segments extending across continuous cubic boron nitride grains in appropriately specified straight lines extending through the composite sintered material is less than or equal to a length three times as large as an average grain size of the cubic boron nitride grains.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.