Composite sintered material and surface-coated boron nitride sintered material tool
US10272498B2 · kind B2 · utility
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4Claims
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Key dates
| Filing date | Mar 20, 2015 |
| Grant date | Apr 30, 2019 |
| Priority date | — |
| Expiry date | Aug 9, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/80
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A composite sintered material contains cubic boron nitride particles and binder particles. The composite sintered material contains 40 vol % or more and 80 vol % or less of the cubic boron nitride particles. The binder particles contain TiCN particles. The composite sintered material shows a first peak belonging to a (200) plane of the TiCN particles in a range in which a Bragg angle 2θ is 41.7° or more and 42.6° or less in an X-ray diffraction spectrum measured using a Cu-Kα ray as a ray source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.