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

Graduate School of Environmental and Life Science

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

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 language	English
Pages (from-to)	1292-1296
Number of pages	5
Journal	Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
Volume	100
Issue number	1167
DOIs	https://doi.org/10.2109/jcersj.100.1292
Publication status	Published - 1992

ASJC Scopus subject areas

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

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title = "29Si MAS NMR of Na-Si-O-N oxynitride glasses",

abstract = "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.",

author = "Hidero Unuma and Hideki Maekawa and Hajime Kiyono and Katsuyuki Kawamura and Takashi Maekawa and Toshio Yokokawa",

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T1 - 29Si MAS NMR of Na-Si-O-N oxynitride glasses

AU - Unuma, Hidero

AU - Maekawa, Hideki

AU - Kiyono, Hajime

AU - Kawamura, Katsuyuki

AU - Maekawa, Takashi

AU - Yokokawa, Toshio

PY - 1992

Y1 - 1992

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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JO - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan

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