Inelastic light scattering from nanocrystallizing niobiotellurite glass: An insight into the metastable phase and phase-transformation dynamics

Yoshihiro Takahashi; Aoki Iwafuchi; Minoru Osada; Hirokazu Masai; Rie Ihara; Takumi Fujiwara

Inelastic light scattering from nanocrystallizing niobiotellurite glass: An insight into the metastable phase and phase-transformation dynamics

Yoshihiro Takahashi^*, Aoki Iwafuchi, Minoru Osada, Hirokazu Masai, Rie Ihara, Takumi Fujiwara

^*Corresponding author for this work

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

2 Citations (Scopus)

Abstract

In situ observations of inelastic light scattering of Raman and Boson regions were performed in nanocrystallized 15K₂O-15Nb ₂O₅-70TeO₂ glass to investigate nanocrystallization dynamics during the heating process. These in situ observations revealed a drastic structural rearrangement during the evolution of metastable K[Nb_1/3Te_2/3]₂O_4.8 nanocrystals. It is suggested that the distortion of the octahedral NbO ₆ unit being released in the glassy phase is the key to nanocrystallization.

Original language	English
Pages (from-to)	814-818
Number of pages	5
Journal	Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
Volume	118
Issue number	1381
Publication status	Published - 2010 Sept
Externally published	Yes

Keywords

Boson peak
Inelastic light scattering
Nanocrystallization
Raman spectroscopy
Tellurite glass

ASJC Scopus subject areas

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

Cite this

Inelastic light scattering from nanocrystallizing niobiotellurite glass: An insight into the metastable phase and phase-transformation dynamics. / Takahashi, Yoshihiro; Iwafuchi, Aoki; Osada, Minoru et al.
In: Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan, Vol. 118, No. 1381, 09.2010, p. 814-818.

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

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abstract = "In situ observations of inelastic light scattering of Raman and Boson regions were performed in nanocrystallized 15K2O-15Nb 2O5-70TeO2 glass to investigate nanocrystallization dynamics during the heating process. These in situ observations revealed a drastic structural rearrangement during the evolution of metastable K[Nb1/3Te2/3]2O4.8 nanocrystals. It is suggested that the distortion of the octahedral NbO 6 unit being released in the glassy phase is the key to nanocrystallization.",

keywords = "Boson peak, Inelastic light scattering, Nanocrystallization, Raman spectroscopy, Tellurite glass",

author = "Yoshihiro Takahashi and Aoki Iwafuchi and Minoru Osada and Hirokazu Masai and Rie Ihara and Takumi Fujiwara",

year = "2010",

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T2 - An insight into the metastable phase and phase-transformation dynamics

AU - Takahashi, Yoshihiro

AU - Iwafuchi, Aoki

AU - Osada, Minoru

AU - Masai, Hirokazu

AU - Ihara, Rie

AU - Fujiwara, Takumi

PY - 2010/9

Y1 - 2010/9

N2 - In situ observations of inelastic light scattering of Raman and Boson regions were performed in nanocrystallized 15K2O-15Nb 2O5-70TeO2 glass to investigate nanocrystallization dynamics during the heating process. These in situ observations revealed a drastic structural rearrangement during the evolution of metastable K[Nb1/3Te2/3]2O4.8 nanocrystals. It is suggested that the distortion of the octahedral NbO 6 unit being released in the glassy phase is the key to nanocrystallization.

AB - In situ observations of inelastic light scattering of Raman and Boson regions were performed in nanocrystallized 15K2O-15Nb 2O5-70TeO2 glass to investigate nanocrystallization dynamics during the heating process. These in situ observations revealed a drastic structural rearrangement during the evolution of metastable K[Nb1/3Te2/3]2O4.8 nanocrystals. It is suggested that the distortion of the octahedral NbO 6 unit being released in the glassy phase is the key to nanocrystallization.

KW - Boson peak

KW - Inelastic light scattering

KW - Nanocrystallization

KW - Raman spectroscopy

KW - Tellurite glass

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

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Inelastic light scattering from nanocrystallizing niobiotellurite glass: An insight into the metastable phase and phase-transformation dynamics

Abstract

Keywords

ASJC Scopus subject areas

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