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Investigation of gas-phase processes for the preparation of fiber-reinforced organomorphic ceramic composites with a SiC-matrix
https://doi.org/10.17073/1683-4518-2020-8-23-30
Abstract
The isothermal process of gas-phase chemical deposition for the compaction of organomorphic carbon-fiber preforms with a SiC-matrix obtained by carbonization of compressed fibers of oxidized polyacrylonitrile has been investigated. Their feature is high (up to 70 %) and uniform pore size (reduced pore diameter from several micrometers to several tens of micrometers) porosity. The problem of optimizing the technological parameters of the process of obtaining ceramic-matrix composites (CMC) was solved by a combination of experimental research and numerical modeling. Experimental samples of CMC were obtained using a non-halogen precursor of methylsilane CH3SiH3, and their residual porosity was determined. For the numerical study of the gas-phase process of compaction of preforms, a 1D model was used. The simulation results were compared with experimental observations.
About the Authors
E. A. BogachevRussian Federation
V. I. Kulik
Russian Federation
A. V. Kulik
Russian Federation
A. S. Nilov
Russian Federation
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Supplementary files
For citation: Bogachev E.A., Kulik V.I., Kulik A.V., Nilov A.S. Investigation of gas-phase processes for the preparation of fiber-reinforced organomorphic ceramic composites with a SiC-matrix. NOVYE OGNEUPORY (NEW REFRACTORIES). 2020;(8):23-30. https://doi.org/10.17073/1683-4518-2020-8-23-30
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