Compositions comprising free-standing two-dimensional nanocrystals
US-9837182-B2 · Dec 5, 2017 · US
Powder containing tungsten carbide
US2020392606A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2020392606-A1 |
| Application number | US-201816762903-A |
| Country | US |
| Kind code | A1 |
| Filing date | Nov 13, 2018 |
| Priority date | Nov 14, 2017 |
| Publication date | Dec 17, 2020 |
| Grant date | — |
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Abstract
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A powder containing tungsten carbide has an Fsss particle size of greater than or equal to 0.3 μm and less than or equal to 1.5 μm, and a content rate of the tungsten carbide of greater than or equal to 90% by mass. The powder has a crystallite size (average particle diameter) Y satisfying a relational expression of Y≤0.1×X+0.20 (X: the Fsss particle size of the power containing tungsten carbide).
First claim
Opening claim text (preview).
1 . A powder containing tungsten carbide, wherein: the powder has an Fsss particle size of greater than or equal to 0.3 μm and less than or equal to 1.5 μm, and a content rate of the tungsten carbide of greater than or equal to 90% by mass; the powder has a crystallite size (average particle diameter) Y satisfying a relational expression of Y≤0.1×X+0.20 (X: the Fsss particle size of the power containing tungsten carbide); and the powder contains chromium in an amount of greater than or equal to 0.2% by mass and less than or equal to 2.5% by mass. 2 . (canceled) 3 . The powder containing tungsten carbide according to claim 1 , wherein the powder contains oxygen in an amount of less than or equal to 0.3% by mass.
Assignees
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Classifications
Metallic powder characterised by the size or surface area of the particles · CPC title
- C01B32/949Primary
Tungsten or molybdenum carbides · CPC title
Metallic powder characterised by particles having a nanoscale microstructure (nanosized particles B22F1/054) · CPC title
Compositional purity · CPC title
Submicrometer sized, i.e. from 0.1-1 micrometer · CPC title
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- What does patent US2020392606A1 cover?
- A powder containing tungsten carbide has an Fsss particle size of greater than or equal to 0.3 μm and less than or equal to 1.5 μm, and a content rate of the tungsten carbide of greater than or equal to 90% by mass. The powder has a crystallite size (average particle diameter) Y satisfying a relational expression of Y≤0.1×X+0.20 (X: the Fsss particle size of the power containing tungsten carbide).
- 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 Thu Dec 17 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).