Method of making ceramic composite devices with unidirectionally aligned reinforcing fibers
US7186360B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 28, 2003 |
| Grant date | Mar 6, 2007 |
| Priority date | — |
| Expiry date | Sep 20, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2200/0047
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Ceramic composite materials have unidirectional alignment of the reinforcing fibers. The ratio of the volume of the fiber strands of the reinforcing fibers to the volume of the matrix is at least 0.5. A process for their production involves initially coating the fiber strands or rovings of the reinforcing fibers with a sacrificial polymer. The coated fiber strands are processed with binder resins into unidirectionally reinforced CFK molded parts. The formed CFK bodies are carbonized to form CFC bodies. The CFC bodies are then silicized with liquid silicon. The liquid silicon diffuses into the pores formed in the CFC body and combines there at least partially with the carbon to form silicon carbide. The sacrificial polymer is pyrolized. The ceramic composite materials also can be used in fiber-reinforced ceramic structural parts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.