Systems and methods for carbon-carbon materials incorporating yttrium and zirconium compounds
US-2017175833-A1 · Jun 22, 2017 · US
Method of fabricating a friction part out of composite material
US10836684B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10836684-B2 |
| Application number | US-201816161814-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 16, 2018 |
| Priority date | Oct 19, 2017 |
| Publication date | Nov 17, 2020 |
| Grant date | Nov 17, 2020 |
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Abstract
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A method of fabricating a friction part out of composite material, the method including densifying a carbon yarn fiber preform with a matrix including at least pyrolytic carbon and a ZrO x C y phase, where 1≤x≤2 and 0≤y≤1, the matrix being formed by film-boiling or by chemical vapor infiltration from a first precursor for pyrolytic carbon and a second precursor that includes zirconium, the second precursor being a zirconium complex including an alcoxy or carboxylate ligand bonded to zirconium.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of fabricating a friction part out of composite material, the method comprising: densifying a carbon yarn fiber preform with a matrix comprising at least pyrolytic carbon and a ZrO x C y phase, where 1≤x≤2 and 0≤y≤1, the matrix being formed by film-boiling from a film-boiling bath comprising a first precursor for pyrolytic carbon and a second precursor that includes zirconium, the second precursor being a zirconium complex comprising an alkoxy or carboxylate ligand bonded to zirconium, wherein the ZrO x C y phase is formed by film-boiling from the second precursor, and wherein the content by weight of the second precursor in the film-boiling bath lies in the range 3% to 30%. 2. The method according to claim 1 , wherein the alcoxy or carboxylate ligand is a C 2 to C 10 ligand. 3. The method according to claim 2 , wherein the alcoxy or carboxylate ligand is selected from: propoxy ligand; butoxy ligand; or 2-ethylhexanoate ligand. 4. The method according to claim 3 , wherein the second precursor is selected from: zirconium propoxide; zirconium butoxide; zirconium ethyl-2-hexanoate; and mixtures thereof. 5. The method according to claim 1 , further comprising deoxygenation heat treatment of the ZrO x C y phase that has been formed. 6. The method according to claim 1 , wherein the optionally deoxygenated ZrO x C y phase is present in the final part at a content by weight lying in the range 0.5% to 25%. 7. The method according to claim 1 , wherein the friction part is a brake disk.
Assignees
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Classifications
- C04B35/52Primary
based on carbon, e.g. graphite · CPC title
based on zirconium or hafnium carbides · CPC title
Composite materials containing carbon and carbon fibres or fibres made of carbonizable material · CPC title
Fibres, filaments, whiskers, platelets, or the like · CPC title
Carbon · CPC title
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- What does patent US10836684B2 cover?
- A method of fabricating a friction part out of composite material, the method including densifying a carbon yarn fiber preform with a matrix including at least pyrolytic carbon and a ZrO x C y phase, where 1≤x≤2 and 0≤y≤1, the matrix being formed by film-boiling or by chemical vapor infiltration from a first precursor for pyrolytic carbon and a second precursor that includes zirconium, the sec…
- Who is the assignee on this patent?
- Safran Landing Systems
- What technology area does this patent fall under?
- Primary CPC classification C04B35/52. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Nov 17 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).