碱金属
材料科学
摩尔体积
硼
德拜模型
弹性模量
玻璃化转变
硼酸盐玻璃
红外光谱学
兴奋剂
无机化学
分析化学(期刊)
矿物学
复合材料
热力学
化学
有机化学
聚合物
光电子学
物理
作者
M.S. Gaafar,Samir Y. Marzouk,H. A. Zayed,L. I. Soliman,A.H. Serag El-Deen
标识
DOI:10.1016/j.cap.2012.07.007
摘要
Mixed alkali borate glasses doped with CoO, have been prepared by the melt quenching technique. Elastic properties and FT-IR spectroscopic studies have been employed to study the role of CoO and the mixed alkali effect on the structure of the investigated glass system. Elastic properties and Debye temperature have been investigated using sound wave velocity measurements at 4 MHz at room temperature. The density, molar volume and glass transition temperatures were employed to investigate the structure of these glasses. Infrared spectra of these glasses revealed that the borate network is affected by the increase in the concentration of CoO content and the mixed alkali oxides. These results are interpreted in terms of the change in the topology of these glass structures. The elastic moduli are observed to increase with the increase of CoO content due to the increased average bond connectivity.
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