Raman Spectra and Constitution of Binary Tellurite Glasses Containing Typical Network Modifying Cations

Akiyoshi Osaka; Qiu Jianrong; Tatsuo Fujii; Tokuro Nanba; Jun Takada; Yoshinari Miura

doi:10.2472/jsms.42.473

Raman Spectra and Constitution of Binary Tellurite Glasses Containing Typical Network Modifying Cations

Akiyoshi Osaka, Qiu Jianrong, Tatsuo Fujii, Tokuro Nanba, Jun Takada, Yoshinari Miura

研究成果 › 査読

抄録

The 720 and 780 cm^-1 components of the deconvoluted Raman spectra of glasses in the systems R_nO-TeO₂ (R=Li, Na, K, Ba, Zn) were attributed to TeO₃ groups and the 665 cm^-1 band was to TeO₄ groups. The theoretical values of the molar ratio TeO₃/TeO₄ derived from an assumed vitrification reaction were compared with the ratio derived from the intensity ratios of the Raman bands, I(720) /I(665) and I(780)/I(665). It was indicated that [O_2/2Te=O] and [O_1/2Te(=O)-O]^- units were induced by the addition of network modifying oxides in the composition range of lower atomic ratio O/Te. It was proposed that the decrease in the rate of increase of the ratio TeO₃/TeO₄ in the range of larger O/Te was due to the equilibrium TeO_4/2↔[O12/2Te=O] favoring the former unit.

本文言語	English
ページ（範囲）	473-477
ページ数	5
ジャーナル	journal of the society of materials science, japan
巻	42
号	476
DOI	https://doi.org/10.2472/jsms.42.473
出版ステータス	Published - 1993

ASJC Scopus subject areas

材料科学（全般）
凝縮系物理学
材料力学
機械工学

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10.2472/jsms.42.473

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title = "Raman Spectra and Constitution of Binary Tellurite Glasses Containing Typical Network Modifying Cations",

abstract = "The 720 and 780 cm-1 components of the deconvoluted Raman spectra of glasses in the systems RnO-TeO2 (R=Li, Na, K, Ba, Zn) were attributed to TeO3 groups and the 665 cm-1 band was to TeO4 groups. The theoretical values of the molar ratio TeO3/TeO4 derived from an assumed vitrification reaction were compared with the ratio derived from the intensity ratios of the Raman bands, I(720) /I(665) and I(780)/I(665). It was indicated that [O2/2Te=O] and [O1/2Te(=O)-O]- units were induced by the addition of network modifying oxides in the composition range of lower atomic ratio O/Te. It was proposed that the decrease in the rate of increase of the ratio TeO3/TeO4 in the range of larger O/Te was due to the equilibrium TeO4/2↔[O12/2Te=O] favoring the former unit.",

keywords = "Constitution, Glass, Raman spectrum, Tellurite",

author = "Akiyoshi Osaka and Qiu Jianrong and Tatsuo Fujii and Tokuro Nanba and Jun Takada and Yoshinari Miura",

year = "1993",

doi = "10.2472/jsms.42.473",

language = "English",

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T1 - Raman Spectra and Constitution of Binary Tellurite Glasses Containing Typical Network Modifying Cations

AU - Osaka, Akiyoshi

AU - Jianrong, Qiu

AU - Fujii, Tatsuo

AU - Nanba, Tokuro

AU - Takada, Jun

AU - Miura, Yoshinari

PY - 1993

Y1 - 1993

N2 - The 720 and 780 cm-1 components of the deconvoluted Raman spectra of glasses in the systems RnO-TeO2 (R=Li, Na, K, Ba, Zn) were attributed to TeO3 groups and the 665 cm-1 band was to TeO4 groups. The theoretical values of the molar ratio TeO3/TeO4 derived from an assumed vitrification reaction were compared with the ratio derived from the intensity ratios of the Raman bands, I(720) /I(665) and I(780)/I(665). It was indicated that [O2/2Te=O] and [O1/2Te(=O)-O]- units were induced by the addition of network modifying oxides in the composition range of lower atomic ratio O/Te. It was proposed that the decrease in the rate of increase of the ratio TeO3/TeO4 in the range of larger O/Te was due to the equilibrium TeO4/2↔[O12/2Te=O] favoring the former unit.

AB - The 720 and 780 cm-1 components of the deconvoluted Raman spectra of glasses in the systems RnO-TeO2 (R=Li, Na, K, Ba, Zn) were attributed to TeO3 groups and the 665 cm-1 band was to TeO4 groups. The theoretical values of the molar ratio TeO3/TeO4 derived from an assumed vitrification reaction were compared with the ratio derived from the intensity ratios of the Raman bands, I(720) /I(665) and I(780)/I(665). It was indicated that [O2/2Te=O] and [O1/2Te(=O)-O]- units were induced by the addition of network modifying oxides in the composition range of lower atomic ratio O/Te. It was proposed that the decrease in the rate of increase of the ratio TeO3/TeO4 in the range of larger O/Te was due to the equilibrium TeO4/2↔[O12/2Te=O] favoring the former unit.

KW - Constitution

KW - Glass

KW - Raman spectrum

KW - Tellurite

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JO - Zairyo/Journal of the Society of Materials Science, Japan

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Raman Spectra and Constitution of Binary Tellurite Glasses Containing Typical Network Modifying Cations

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