Abstract
Environmental effects, especially O2 pressure, often make SiC/SiC composites degraded. In order to investigate the effects on microstructural stability, SiC/SiC composite specimens, made of Hi-NicalonTM SiC fibers, were annealed under a commercial grade Ar flow and an ultra-high purified Ar flow respectively. The microstructural evolution in SiC/SiC composites was examined by a field emission type high-resolution electron microscopy and a parallel electron energy loss spectroscopy. A possible mechanism for this degradation was discussed.
Original language | English |
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Pages (from-to) | 125-128 |
Number of pages | 4 |
Journal | Journal of University of Science and Technology Beijing: Mineral Metallurgy Materials (Eng Ed) |
Volume | 6 |
Issue number | 2 |
State | Published - 1999 |
Externally published | Yes |