High temperature fiber and method of making
US-2024368041-A1 · Nov 7, 2024 · US
Systems and methods for ceramic matrix composites
US2018155252A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018155252-A1 |
| Application number | US-201815874284-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jan 18, 2018 |
| Priority date | Sep 5, 2014 |
| Publication date | Jun 7, 2018 |
| Grant date | — |
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- Title
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- Abstract
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- First independent claim
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Abstract
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Methods for fabricating a ceramic matrix composite are disclosed. A fiber preform may be placed in a mold. An aqueous solution may be added to the fiber preform. The aqueous solution may include water, carbon nanotubes, and a binder. The preform may be frozen. Freezing the preform may cause the water to expand and separate fibers in the fiber preform. The carbon nanotubes may bond to the fibers. The preform may be freeze dried to remove the water. The preform may then be processed according to standard CMC process.
First claim
Opening claim text (preview).
1 . A ceramic matrix composite formed by a process comprising: inserting a fiber tow in a mold; introducing an aqueous solution comprising water, carbon nanotubes, and a binder into the mold; freezing the aqueous solution, wherein the freezing the aqueous solution separates fibers within the fiber tow; freeze drying the aqueous solution, wherein the freeze drying removes the water from the mold; and processing the mold via at least one of slurry casting, chemical vapor infiltration, polymer infiltration and pyrolysis, or melt infiltration. 2 . The ceramic matrix composite of claim 1 , wherein the process further comprises converting the carbon nanotubes to at least one of boron carbide or boron nitride nanotubes. 3 . The ceramic matrix composite of claim 1 , wherein the process further comprises converting the carbon nanotubes to silicon carbide nanotubes. 4 . The ceramic matrix composite of claim 1 , wherein the carbon nanotubes are bonded to fibers. 5 . The ceramic matrix composite of claim 1 , wherein the carbon nanotubes form an interfacial region surrounding the fibers.
Assignees
Inventors
Classifications
Carbon fibres in a carbon matrix · CPC title
Hollow fibers, e.g. nanotubes · CPC title
Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint · CPC title
Carbon nanotubes · CPC title
Boron · CPC title
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- What does patent US2018155252A1 cover?
- Methods for fabricating a ceramic matrix composite are disclosed. A fiber preform may be placed in a mold. An aqueous solution may be added to the fiber preform. The aqueous solution may include water, carbon nanotubes, and a binder. The preform may be frozen. Freezing the preform may cause the water to expand and separate fibers in the fiber preform. The carbon nanotubes may bond to the fibers…
- Who is the assignee on this patent?
- United Technologies Corp
- What technology area does this patent fall under?
- Primary CPC classification C04B35/82. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Jun 07 2018 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).