Compositions comprising free-standing two-dimensional nanocrystals
US-9837182-B2 · Dec 5, 2017 · US
Tungsten carbide powder
US11312632B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11312632-B2 |
| Application number | US-201716341624-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 12, 2017 |
| Priority date | Oct 13, 2016 |
| Publication date | Apr 26, 2022 |
| Grant date | Apr 26, 2022 |
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- Title
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Abstract
Official abstract text for this publication.
Provided is a tungsten carbide powder satisfying such a condition that when the Fsss particle size thereof is represented by a (μm) and the BET particle size thereof converted from the BET specific surface area is represented by b (μm), a is 0.40 μm or more and 1.50 μm or less, and b/a is 0.17 or more and 0.35 or less.
First claim
Opening claim text (preview).
The invention claimed is: 1. A tungsten carbide powder satisfying such a condition that when the Fsss particle size thereof is represented by a (μm) and the BET particle size thereof converted from the BET specific surface area is represented by b (μm), a is 0.40 μm or more and 1.50 μm or less, and b/a is 0.17 or more and 0.35 or less, and the tapped volume (cm 3 /100 g) is represented by y, y=−5.97a+z (z=22.56 or less). 2. The tungsten carbide powder according to claim 1 , wherein the Fsss particle size a (μm) is 0.40 μm or more and 1.00 μm or less. 3. The tungsten carbide powder according to claim 1 , wherein when the tungsten carbide powder is pressed at a pressure of 98 MPa and molded into a press-molded body, and the density (g/cm 3 ) of the press-molded body is represented by p, p=1.86a+q (q=6.8 or more).
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Classifications
Surface area · CPC title
Solid density · CPC title
Submicrometer sized, i.e. from 0.1-1 micrometer · CPC title
Micrometer sized, i.e. from 1-100 micrometer · CPC title
- C01B32/949Primary
Tungsten or molybdenum carbides · CPC title
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- What does patent US11312632B2 cover?
- Provided is a tungsten carbide powder satisfying such a condition that when the Fsss particle size thereof is represented by a (μm) and the BET particle size thereof converted from the BET specific surface area is represented by b (μm), a is 0.40 μm or more and 1.50 μm or less, and b/a is 0.17 or more and 0.35 or less.
- Who is the assignee on this patent?
- Almt Corp
- What technology area does this patent fall under?
- Primary CPC classification C01B32/949. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 26 2022 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).