CVI matrix densification process
US12304870B2 · kind B2 · utility
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Key dates
| Filing date | Jun 30, 2023 |
| Grant date | May 20, 2025 |
| Priority date | — |
| Expiry date | Jun 30, 2043 |
Classification
- Technology area (CPC —)General
Abstract
Disclosed herein is a chemical vapor infiltration method including flowing ceramic precursors through a preform and depositing a matrix material on the preform at a first gas infiltration pressure, increasing the gas filtration pressure to a second gas infiltration pressure, and lowering the gas infiltration pressure to a third gas infiltration pressure which is intermediate to the first and second gas infiltration pressures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.