Refractory metal matrix-ceramic compound multi-component composite material with super-high melting point
US-2018290934-A1 · Oct 11, 2018 · US
Toughened ceramic material
US2019152865A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2019152865-A1 |
| Application number | US-201815962101-A |
| Country | US |
| Kind code | A1 |
| Filing date | Apr 25, 2018 |
| Priority date | Nov 23, 2017 |
| Publication date | May 23, 2019 |
| Grant date | — |
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Abstract
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A toughened ceramic material includes at least one boride and a refractory metal, or at least two borides, one carbide at least, and a refractory metal. The toughened ceramic material is by means of heating and smelting the above materials. During the process of preparing the toughened ceramic material by heating and smelting, substantially all the refractory metal reacts with the boride and/or the carbide to form a toughened ceramic material with a high toughness and substantially without metallic cemented phase.
First claim
Opening claim text (preview).
What is claimed is: 1 . A toughened ceramic material, comprising at least one boride and a refractory metal, wherein the boride is selected from the group consisting of TiB 2 , ZrB 2 , NbB 2 , HfB 2 , TaB 2 and W 2 B 5 , the refractory metal is tungsten or tantalum, with the toughened ceramic material prepared by heating and smelting the boride and the refractory metal. 2 . The toughened ceramic material according to claim 1 , wherein when the boride and the refractory material prepared by heating and smelting substantially all the refractory metal reacts with the boride to form a pure ceramic structure substantially without a metallic cemented phase. 3 . The toughened ceramic material according to claim 1 , comprising MB 2 phase, MB phase or/and W 2 B phase. 4 . A toughened ceramic material, comprises two borides at least, one carbide at least, and a refractory metal; wherein the said boride is from the group of TiB 2 and ZrB 2 ; the said carbide is from the group of SiC, B 4 C, TiC, NbC, TaC and WC; and the said refractory metal is tungsten, with a toughened ceramic material being prepared by smelting the boride, the carbide and the refractory metal together. 5 . The toughened ceramic material according to claim 4 , wherein when the boride, the carbide and the refractory metal are heated and smelted, substantially all the refractory metal reacts with the boride and/or the carbide to form a pure ceramic structure substantially without any metallic cemented phase. 6 . The toughened ceramic material according to claim 4 , comprising MB 2 phase, MC phase, MB phase or/and W 2 B phase.
Assignees
Inventors
Classifications
Processes involving a melting step · CPC title
Total pressure below 1 atmosphere, e.g. vacuum · CPC title
based on zirconium or hafnium borides · CPC title
for manufacturing refractories (C04B35/05, C04B35/107, C04B35/484 take precedence) · CPC title
based on tungsten carbides · CPC title
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- What does patent US2019152865A1 cover?
- A toughened ceramic material includes at least one boride and a refractory metal, or at least two borides, one carbide at least, and a refractory metal. The toughened ceramic material is by means of heating and smelting the above materials. During the process of preparing the toughened ceramic material by heating and smelting, substantially all the refractory metal reacts with the boride and/or…
- Who is the assignee on this patent?
- Univ Nat Tsing Hua
- What technology area does this patent fall under?
- Primary CPC classification C04B35/58071. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu May 23 2019 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 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).