Crystallization behavior of hafnium fluoride-based fluorochloride glasses


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The crystallization mechanism of chlorine-containing fluorohafnate glasses with the compositions (65–56)HfF4 · (20–x)BaF2 · xBaCl2 · 4LaF3 · (3–y)AlF3 · yInF3 · (5–18)NaF has been studied by X-ray diffraction and differential thermal analysis. The results demonstrate that characteristic features of the glasses are a decrease in glass transition temperature and the precipitation of fine-particle crystalline chloride phases at temperatures below the crystallization temperature of their fluoride analogs. We have studied the effect of the Cl/F ratio in the glass batch and the melt cooling rate on the crystallization behavior of the glasses and determined the heat treatment temperature and time for the formation of transparent glassceramic materials. The luminescence properties of Er3+-doped fluoride and fluorochloride glasses and glassceramics prepared from them have been investigated in the 1.5-µm range.

作者简介

M. Brekhovskikh

Kurnakov Institute of General and Inorganic Chemistry

编辑信件的主要联系方式.
Email: mbrekh@igic.ras.ru
俄罗斯联邦, Leninskii pr. 31, Moscow, 119991

S. Batygov

Prokhorov General Physics Institute

Email: mbrekh@igic.ras.ru
俄罗斯联邦, ul. Vavilova 38, Moscow, 119333

L. Moiseeva

Prokhorov General Physics Institute

Email: mbrekh@igic.ras.ru
俄罗斯联邦, ul. Vavilova 38, Moscow, 119333

A. Egorysheva

Kurnakov Institute of General and Inorganic Chemistry

Email: mbrekh@igic.ras.ru
俄罗斯联邦, Leninskii pr. 31, Moscow, 119991

V. Fedorov

Kurnakov Institute of General and Inorganic Chemistry

Email: mbrekh@igic.ras.ru
俄罗斯联邦, Leninskii pr. 31, Moscow, 119991

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