Environmental effects on microstructural stability of SiC/SiC composites

Tamaki Shibayama, Guo Wei He, Heishichiro Takahashi, Yutai Katoh, Akira Kohyama

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

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 languageEnglish
Pages (from-to)125-128
Number of pages4
JournalJournal of University of Science and Technology Beijing: Mineral Metallurgy Materials (Eng Ed)
Volume6
Issue number2
StatePublished - 1999
Externally publishedYes

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