Discrete solidification of melt infiltration
US11046618B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | May 1, 2018 |
| Grant date | Jun 29, 2021 |
| Priority date | — |
| Expiry date | Sep 26, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/66
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A ceramic matrix composite (CMC) is formed by infiltrating a metal or alloy into a fiber preform in a reactor or furnace that is separated into multiple discrete temperature zones. The gradual cooling of the CMC is controlled, such that upon solidification, a narrow, planar, solidification front is created which allows the expanding metal or alloy to move into a hotter section of the fiber preform, opposed to the surface of the CMC. A discrete solidification front is established that moves through the ceramic matrix composite (CMC) as the composite cools.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.