Hard alloy and cutting tool
US-2018036806-A1 · Feb 8, 2018 · US
Complex carbonitride powder and method for producing same
US10858252B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10858252-B2 |
| Application number | US-201615772582-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 21, 2016 |
| Priority date | Nov 2, 2015 |
| Publication date | Dec 8, 2020 |
| Grant date | Dec 8, 2020 |
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- Title
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Abstract
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A complex carbonitride powder contains Ti as a main component element and at least one additional element selected from the group consisting of Zr, Hf, V, Nb, Ta, Cr, Mo, W, Al, and Si. The complex carbonitride powder includes a plurality of complex carbonitride particles containing Ti and the additional element. The plurality of complex carbonitride particles include a plurality of homogeneous composition particles where average concentrations of Ti and the additional element in each complex carbonitride particle have a difference in a range of greater than or equal to −5 atom % and less than or equal to 5 atom % from average concentrations of Ti and the additional element in the whole complex carbonitride powder. A cross-sectional area of the homogeneous composition particles is greater than or equal to 90% of a cross-sectional area of the complex carbonitride particles 1p.
First claim
Opening claim text (preview).
The invention claimed is: 1. A complex carbonitride powder consisting of a plurality of complex carbonitride particles comprising titanium as a main component element and at least one additional element selected from the group consisting of zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, aluminum, and silicon, the plurality of complex carbonitride particles including a plurality of homogeneous composition particles where average concentrations of titanium and the additional element in each complex carbonitride particle have a difference in a range of greater than or equal to −5 atom % and less than or equal to 5 atom % from average concentrations of titanium and the additional element in the complex carbonitride powder as a whole, and a total cross-sectional area of all the homogeneous composition particles being greater than or equal to 90% of a total cross-sectional area of all the complex carbonitride particles, and all the homogeneous composition particles being greater than or equal to 90% of all the complex carbonitride particles in number. 2. The complex carbonitride powder according to claim 1 , wherein, in the homogeneous composition particles, concentration distributions of titanium and the additional element in each of the homogeneous composition particles are in a range of greater than or equal to −5 atom % and less than or equal to 5 atom % from the average concentrations of titanium and the additional element in the complex carbonitride powder as a whole.
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Classifications
Supplementary information concerning processes or compositions relating to powder metallurgy · CPC title
Aspects linked to processes or compositions used in powder metallurgy · CPC title
Submicrometer sized, i.e. from 0.1-1 micrometer · CPC title
- C01B21/0828Primary
Carbonitrides or oxycarbonitrides of metals, boron or silicon · CPC title
based on carbonitrides · CPC title
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- What does patent US10858252B2 cover?
- A complex carbonitride powder contains Ti as a main component element and at least one additional element selected from the group consisting of Zr, Hf, V, Nb, Ta, Cr, Mo, W, Al, and Si. The complex carbonitride powder includes a plurality of complex carbonitride particles containing Ti and the additional element. The plurality of complex carbonitride particles include a plurality of homogeneous…
- Who is the assignee on this patent?
- Sumitomo Electric Industries, Almt Corp
- What technology area does this patent fall under?
- Primary CPC classification C01B21/0828. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 08 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).