29Si MAS NMR of Na-Si-O-N oxynitride glasses

Hidero Unuma, Hideki Maekawa, Hajime Kiyono, Katsuyuki Kawamura, Takashi Maekawa, Toshio Yokokawa

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


Local structure around silicon and nitrogen atoms in Na-Si-O-N oxynitride glasses has been studied by means of 29Si MAS NMR spectroscopy. The NMR spectra have been analyzed on the assumption that the resonances of singly nitrided silicate tetrahedra shift towards less shielded direction by about 15 ppm compared with those of non-nitrided ones. It has been estimated that the number of silicon atoms around nitrogen is about 2.5, suggesting that about a half of the total nitrogen atoms may be bonded to two silicon atoms.

Original languageEnglish
Pages (from-to)1292-1296
Number of pages5
JournalNippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
Issue number1167
Publication statusPublished - 1992

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry


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