Cubic boron nitride sintered material and cutting tool including same
US12163207B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 30, 2021 |
| Grant date | Dec 10, 2024 |
| Priority date | — |
| Expiry date | Jul 30, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C2026/007
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A cubic boron nitride sintered material includes cubic boron nitride and a binder. The binder includes a first material and a second material. The first material is one or two or more first chemical species each including at least one first metallic element selected from the group consisting of tungsten, cobalt, and aluminum. Each of the first chemical species is a metal, an alloy, an intermetallic compound, a compound, or a solid solution. The second material is one or two or more second chemical species each including at least one second metallic element selected from the group consisting of titanium, zirconium, hafnium, vanadium, niobium, tantalum, and chromium. Each of the second chemical species is a solid solution derived from at least one selected from the group consisting of nitride, carbide, and carbonitride. In each of the second chemical species, 0.1 atom % to 10 atom % of aluminum is dissolved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.