High-resolution TEM observation of β-SiC nano-crystallite evolution in Si-C-Ti-O fibers pyrolyzed from polytitanocarbosilane precursor

Y. Hirotsu, K. Wakoh, K. Suzuki, K. Sumiyama, S. Yamamuro, T. Kamiyama, M. Shibuya, T. Yamamura

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Si-C-Ti-O fibers pyrolyzed from polytitanocarbosilane polymer precursors have been observed by a high-resolution transmission electron microscope. Nano-crystalline clusters are finely dispersed in the amorphous matrices of Si-C-Ti-O fibers made from thermal-oxidation-cured and electron-irradiation-cured precursors. Nano-beam electron diffraction and simulated patterns demonstrate that these clusters are β-SiC. Such cluster formation is enhanced in the specimens heat-treated at a high temperature and cured by electron-irradiation.

Original languageEnglish
Pages (from-to)5-10
Number of pages6
JournalMaterials Transactions, JIM
Volume38
Issue number1
DOIs
Publication statusPublished - 1997 Jan

Keywords

  • Ceramic fiber
  • Nano-crystallite
  • Organic-inorganic transformation
  • Silicon carbide fiber
  • Transmission electron microscope

ASJC Scopus subject areas

  • Engineering(all)

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