Abstract
Ceramic matrix composites were investigated for structural and thermal applications in high efficiency and environmental conscious fusion energy systems. In order to up-grade their low activation characteristics, thermal conductivity and high temperature properties, the crystallized Si-Al-C fiber (Tyranno-SA) and pyrolyzed materials obtained from polymethylsilane (PMS) including polycarbosilane (PCS) were applied as reinforcing fiber and matrix, respectively. The new Tyranno-SA/SiC composites with near stoichiometry matrix presented excellent improvements in heat resistance and thermal conductivity from those with non-stoichiometry matrices. The remarkable improvements in tensile properties and fatigue characteristics, at 1300 °C, were attributed by the use of polymetalocarbosilane (PMC) polymer with inorganic powder fillers, BMAS, as the matrix precursor.
Original language | English |
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Pages (from-to) | 301-308 |
Number of pages | 8 |
Journal | Ceramic Engineering and Science Proceedings |
Volume | 20 |
Issue number | 4 |
State | Published - 1999 |
Externally published | Yes |
Event | Proceedings of the 1999 23rd Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - Cocoa Beach, FL, USA Duration: Jan 25 1999 → Jan 29 1999 |