电导率
成核
电阻率和电导率
材料科学
阿累尼乌斯方程
玻璃化转变
结晶
活化能
大气温度范围
分析化学(期刊)
矿物学
热力学
化学
复合材料
物理化学
聚合物
工程类
物理
电气工程
色谱法
作者
R.S. Gedam,Vinayak Deshpande
标识
DOI:10.1016/j.ssi.2006.03.056
摘要
The study of electrical conductivity of 27.5 Li2O : (72.5 − x) B2O3 : x Al2O3 glass samples has been carried out. It has been observed that the conductivity exhibits Arrhenius behavior for all samples up to glass transition temperature Tg. Beyond Tg, an anomalous enhancement followed by decrease in conductivity has been observed. The results have been explained by dividing the temperature range into two regions. In region-I, it has been observed that the conductivity variation exhibits a maximum at 2.5 mol% Al2O3, which has been explained on the basis of Mixed Glass Former Effect (MGFE). An anomalous enhancement in the conductivity observed in region-II has been attributed to the nucleation in the glass. The subsequent decrease in the conductivity has been attributed to the crystallization of the glass samples.
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