Crystallization study of heavy metal fluoride glasses ZBLAN by Raman spectroscopy

被引：0
|
作者：
Qin, L
Shen, ZX
Low, BL
Lee, HK
Lu, TJ
Dai, YS
Tang, SH
Kuok, MH
机构：
[1] NATL UNIV SINGAPORE,DEPT PHYS,SINGAPORE 119620,SINGAPORE
[2] SINGAPORE INST STAND & IND RES,CHEM & SURFACE SCI TECHNOL CTR,SINGAPORE 0511,SINGAPORE
来源：
JOURNAL OF RAMAN SPECTROSCOPY | 1997年 / 28卷 / 07期
关键词：
D O I：
10.1002/(SICI)1097-4555(199707)28:7<495::AID-JRS116>3.0.CO;2-X
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
Heavy metal fluoride glass ZBLAN, with molar composition ZrF4(53)-BaF2(20)-LaF3(4)-AlF3(3)-NaF(20), was studied in vacuum at high temperatures up to 480 degrees C by Raman spectroscopy, The vitreous glass was found to crystallize at 330 degrees C, most probably to beta-BaZrF6 crystallites, High-temperature experiments in air were also carried out and ZrO2 was formed at the surface of the sample. Doping by SiO2 increases the crystallization temperature by 25 degrees C for experiments performed in air, while PbO2 dopants are found to react with the host. (C) 1997 John Wiley & Sons, Ltd.
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页码：495 / 499
页数：5
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