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- Title
Investigation of Gas-Phase Processes of Obtaining Fiber-Reinforced Organomorphic Ceramic Composites with SiC-Matrix.
- Authors
Bogachev, E. A.; Kulik, V. I.; Kulik, A. V.; Nilov, A. S.
- Abstract
The isothermal process of chemical vapor deposition for the densification with a SiC-matrix of organomorphic carbon-fiber preforms obtained by carbonization of compressed fibers of oxidized polyacrylonitrile is investigated. Such preforms are characterized by a high (up to 70%) porosity and uniform pore size (the reduced pore diameter ranges from several micrometers to tens of micrometers). Technological parameters of the process of obtaining ceramic-matrix composites (CMC) were optimized by a combination of experimental studies and numerical simulations. Experimental samples of CMC were obtained using a non-halogen precursor, methylsilane CH3SiH3, and their residual porosity was determined. For the numerical study of the gas-phase process of densification of preforms, a 1D model was used. The simulation results were compared with experimental observations.
- Subjects
CERAMIC-matrix composites; CHEMICAL processes; CARBON fibers; FIBER-reinforced ceramics; CHEMICAL vapor deposition; ISOTHERMAL processes; METHYLSILANE
- Publication
Refractories & Industrial Ceramics, 2020, Vol 61, Issue 4, p433
- ISSN
1083-4877
- Publication type
Article
- DOI
10.1007/s11148-020-00499-9