Differential scanning calorimetry of lithium-silicate glasses with iron

被引：0
|
作者：
Burkhard, DJM [1 ]
Ebener, S
机构：
[1] Univ Marburg, Inst Mineral, D-35032 Marburg, Germany
[2] Univ Marburg, Sci Ctr Mat Res, D-35032 Marburg, Germany
[3] Res Ctr Karlsruhe, ICT WGT, D-76021 Karlsruhe, Germany
来源：
NEUES JAHRBUCH FUR MINERALOGIE-MONATSHEFTE | 1998年 / 02期
关键词：
differential scanning calorimetry; iron-lithium-silicates; glass transition; crystallization;
D O I：
暂无
中图分类号：
P57 [矿物学];
学科分类号：
070901 ;
摘要：
Thermal properties of glasses in the system SiO2-Li2O-Fe2O3 were investigated by differential scanning calorimetry as a function of chemical composition. The glass transition temperature is around 450 degrees C and decreases with Li2O but increases with Fe2O3. Near 600 degrees C, all glasses crystallized completely to Li2SiO3, Li2Si2O5, LiFeSi2O6 and amorphous SiO2, in ratios depending on the chemical composition of the original glass. The crystallization peak moves to lower temperatures with Li2O and to higher temperatures with Fe2O3, and the peak height decreases with Fe2O3.
引用
收藏
页码：69 / 83
页数：15
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