Method to form silicon carbide fibers by single stage pyrolysis of polysilazane precursors
US10508056B1 · kind B1 · utility
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19Claims
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Key dates
| Filing date | Apr 12, 2016 |
| Grant date | Dec 17, 2019 |
| Priority date | — |
| Expiry date | Feb 4, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/96
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed herein are methods of forming substantially crystalline, dense silicon carbide fibers from infusible polysilazane fibers by utilizing a single stage pyrolysis. The pyrolysis is performed using a continuous process in a single furnace with a constant atmospheric condition. Also disclosed are substantially crystalline, dense silicon carbide fibers formed by these methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.