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

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

doi:10.2109/jcersj.100.1292

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

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

研究成果: Article › 査読

10 被引用数 (Scopus)

抄録

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.

本文言語	English
ページ（範囲）	1292-1296
ページ数	5
ジャーナル	Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
巻	100
号	1167
DOI	https://doi.org/10.2109/jcersj.100.1292
出版ステータス	Published - 1992
外部発表	はい

ASJC Scopus subject areas

セラミックおよび複合材料
化学 (全般)
凝縮系物理学
材料化学

文献へのアクセス

10.2109/jcersj.100.1292

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引用スタイル

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AU - Unuma, Hidero

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AU - Kawamura, Katsuyuki

AU - Maekawa, Takashi

AU - Yokokawa, Toshio

PY - 1992

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N2 - 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.

AB - 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.

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