Process for the manufacture of multidirectional reinforcement textures made essentially of ceramic fibers having a silicon compound base for the manufacture of composite materials
US5128117A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 1989 |
| Grant date | Jul 7, 1992 |
| Priority date | — |
| Expiry date | Oct 3, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/3496
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In order to obtain a reinforcement texture made essentially of silicon compound based ceramic fibers in the production of a composite material, the fibers are spun from a ceramic precursor in the molten state, after which they are submitted to a partial cross-linking in view of making the fibers infusible. The cross-linking of the fibers in the precursor in the infusible state is continued and, while they are maintained in the organic state, the cross-linked fibers are submitted to one or several textile-forming operations, such as weaving, layering, needling . . . in order to arrive at the multidirectional texture. Then, the texture is submitted to a heat treatment by pyrolysis to induce the ceramic state of the fibers and so obtain the required texture, which is essentially made of ceramic fibers having a silicon compound base, in particular silicon carbide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.