Microstructures of short-carbon-fiber-reinforced SiC composites prepared by hot-pressing
Abstract
Microstructures of short-carbon-fiber-reinforced silicon carbide composites, prepared by hot-pressing with MgO-Al{sub 2}O{sub 3}-Y{sub 2}O{sub 3} as sintering additives, were investigated by means of X-ray diffractometry, scanning electron microscopy, and transmission electron microscopy. The results showed that the composites could be densified at a relatively low temperature of 1800 deg. C via the liquid-phase-sintering mechanism. The amorphous interphase in the composites not only avoided the direct contact of the fibers with the matrix, but also improved the fiber/matrix bonding, so they could improve the densification of the composites and avoid the degeneration of the carbon fiber. The nano silicon carbide derived from polycarbosilane, could play a role of improving the relative density of the composites.
- Authors:
-
- Department of Material Science and Engineering, Harbin University of Science and Technology, Harbin 150040 (China)
- Department of Material Science and Engineering, Harbin Institute of Technology, Harbin 150001 (China)
- Publication Date:
- OSTI Identifier:
- 21192578
- Resource Type:
- Journal Article
- Journal Name:
- Materials Characterization
- Additional Journal Information:
- Journal Volume: 59; Journal Issue: 12; Other Information: DOI: 10.1016/j.matchar.2008.04.006; PII: S1044-5803(08)00134-4; Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1044-5803
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; ALUMINIUM OXIDES; CARBON FIBERS; HOT PRESSING; MAGNESIUM OXIDES; MICROSTRUCTURE; SCANNING ELECTRON MICROSCOPY; SILICON CARBIDES; SINTERING; TEMPERATURE RANGE 1000-4000 K; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION; YTTRIUM OXIDES
Citation Formats
Xiulan, He, Department of Material Science and Engineering, Harbin Institute of Technology, Harbin 150001, Yingkui, Guo, Yu, Zhou, and Dechang, Jia. Microstructures of short-carbon-fiber-reinforced SiC composites prepared by hot-pressing. United States: N. p., 2008.
Web.
Xiulan, He, Department of Material Science and Engineering, Harbin Institute of Technology, Harbin 150001, Yingkui, Guo, Yu, Zhou, & Dechang, Jia. Microstructures of short-carbon-fiber-reinforced SiC composites prepared by hot-pressing. United States.
Xiulan, He, Department of Material Science and Engineering, Harbin Institute of Technology, Harbin 150001, Yingkui, Guo, Yu, Zhou, and Dechang, Jia. 2008.
"Microstructures of short-carbon-fiber-reinforced SiC composites prepared by hot-pressing". United States.
@article{osti_21192578,
title = {Microstructures of short-carbon-fiber-reinforced SiC composites prepared by hot-pressing},
author = {Xiulan, He and Department of Material Science and Engineering, Harbin Institute of Technology, Harbin 150001 and Yingkui, Guo and Yu, Zhou and Dechang, Jia},
abstractNote = {Microstructures of short-carbon-fiber-reinforced silicon carbide composites, prepared by hot-pressing with MgO-Al{sub 2}O{sub 3}-Y{sub 2}O{sub 3} as sintering additives, were investigated by means of X-ray diffractometry, scanning electron microscopy, and transmission electron microscopy. The results showed that the composites could be densified at a relatively low temperature of 1800 deg. C via the liquid-phase-sintering mechanism. The amorphous interphase in the composites not only avoided the direct contact of the fibers with the matrix, but also improved the fiber/matrix bonding, so they could improve the densification of the composites and avoid the degeneration of the carbon fiber. The nano silicon carbide derived from polycarbosilane, could play a role of improving the relative density of the composites.},
doi = {},
url = {https://www.osti.gov/biblio/21192578},
journal = {Materials Characterization},
issn = {1044-5803},
number = 12,
volume = 59,
place = {United States},
year = {Mon Dec 15 00:00:00 EST 2008},
month = {Mon Dec 15 00:00:00 EST 2008}
}