HRTEM and ELNES analysis of polycarbosilane-derived Si-C-O bulk ceramics

Kenji Kaneko, Ken Ichi Kakimoto

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

A series of analyses by high-resolution transmission electron microscopy (HRTEM) and electron energy-loss spectroscopy (EELS) has been carried out to investigate the nanostructure and the chemical bonding of Si-C-O bulk ceramics prepared by pyrolysis of oxygen-controlled polycarbosilane (PCS). HRTEM revealed that the Si-C-O ceramics with higher oxygen content tended to keep an amorphous microstructure. EELS allowed the examination of energy-loss, near-edge-structures (ELNES) that detected clear transition signals of the chemical bonding around Si atoms from Si-C bonding to Si-O bonding with an increase of oxygen content. The microstructure of the PCS-derived Si-C-O bulk ceramics is characterized as a function of oxygen content.

Original languageEnglish
Pages (from-to)181-190
Number of pages10
JournalJournal of Non-Crystalline Solids
Volume270
Issue number1-3
DOIs
Publication statusPublished - May 11 2000
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry

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