Structure and vibrational spectra of fluoride glasses based on AlF3-YF3

CHKN HAIYAN; ZHANG LTPENG; GAN FUXI

Journals >Acta Optica Sinica >Volume 8 >Issue 9 >Page 791 > Article

Acta Optica Sinica
Vol. 8, Issue 9, 791 (1988)

Structure and vibrational spectra of fluoride glasses based on AlF₃-YF₃

CHKN HAIYAN, ZHANG LTPENG, and GAN FUXI

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[in Chinese]

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CHKN HAIYAN, ZHANG LTPENG, GAN FUXI. Structure and vibrational spectra of fluoride glasses based on AlF₃-YF₃[J]. Acta Optica Sinica, 1988, 8(9): 791 Copy Citation Text

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Abstract

Raman and infrared spectra measurement of (50-x)AlF3-xYF3-50MeF3 (Me= Ca+Ba+Mg+Sr, x=0, 10, 15, 20, 30) glasses have been conducted. A1F3 and YF3 skeletons in glass structure are discussed based on the vibrational spectra. It ia shown that the structure unit in a glass without YF3 is composed of both [AIF6]3-octahedrons and [AlF4] ~ tetrahedrons. In the case where a part of A1F8 is replaced by YF3 in glass compositions, however, the YF3 will be present in the form of 8-coordination in glass structure.

Keywords

fluoride glasses vibiational spectra