High temperature fiber and method of making
US-2024368041-A1 · Nov 7, 2024 · US
Method for coating at least one fiber with a boron nitride interphase
US2024286963A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2024286963-A1 |
| Application number | US-202218572610-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jun 13, 2022 |
| Priority date | Jun 23, 2021 |
| Publication date | Aug 29, 2024 |
| Grant date | — |
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Abstract
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A method for coating at least one fibre with a boron nitride interphase, includes treating the at least one fibre with a treatment medium containing ammonia borane and having a temperature of 100° C. or higher and a pressure of 1 bar or higher.
First claim
Opening claim text (preview).
1 . A method for coating at least one fibre with a boron nitride interphase, comprising treating said at least one fibre with a treatment medium containing ammonia borane and having a temperature greater than or equal to 100° C. and a pressure greater than or equal to 1 bar. 2 . The method according to claim 1 , wherein the treatment medium comprises ammonia borane dissolved in ammonia. 3 . The method according to claim 1 , wherein the temperature of the treatment medium is greater than or equal to 600° C., and the pressure of the treatment medium is greater than or equal to 10 bar. 4 . The method according to claim 3 , wherein the temperature of the treatment medium is between 800° C. and 1600° C., and the pressure of the treatment medium is between 100 bar and 150 bar. 5 . The method according to claim 1 , wherein said at least one fibre is heated by microwaves during the treatment. 6 . The method according to claim 1 , wherein said at least one fibre moves through a treatment chamber during the treatment. 7 . The method according to claim 1 , wherein said at least one fibre is made of ceramic or made of carbon. 8 . The method according to claim 7 , wherein the treatment is carried out in a treatment chamber and said at least one fibre is made of silicon carbide, and wherein said at least one fibre has undergone, before the treatment, a pretreatment for removing a surface layer of the fibre, in the treatment chamber, by placing it in contact with an ammonia phase at a temperature greater than or equal to 100° C. and at a pressure greater than or equal to 1 bar. 9 . The method according to claim 8 , wherein the temperature of the ammonia phase is between 600° C. and 1600° C., and the pressure of the ammonia phase is between 1 bar and 300 bar. 10 . A method for manufacturing a composite material part, comprising at least the formation of a matrix in the pores of a fibrous reinforcement, the fibres of the fibrous reinforcement having been coated with a boron nitride interphase by implementing a method according to claim 1 .
Assignees
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Classifications
Synthetic fibres, other than mineral fibres · CPC title
Inorganic compounds or elements · CPC title
Treatment with radio-waves or microwaves · CPC title
Liquid infiltration of green bodies or pre-forms · CPC title
Silicon carbide · CPC title
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- What does patent US2024286963A1 cover?
- A method for coating at least one fibre with a boron nitride interphase, includes treating the at least one fibre with a treatment medium containing ammonia borane and having a temperature of 100° C. or higher and a pressure of 1 bar or higher.
- Who is the assignee on this patent?
- Safran Ceram, Centre Nat Rech Scient, Univ Bordeaux, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification C04B35/62868. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Aug 29 2024 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).