| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1485181 | Journal of Non-Crystalline Solids | 2008 | 7 Pages |
Abstract
Glasses of the system: (70−x) TeO2 + 15B2O3 + 15P2O5 + xLi2O, where x = 5, 10, 15, 20, 25 and 30 mol% were prepared by melt quench technique. Dependencies of their glass transition temperatures (Tg) and infrared (IR) absorption spectra on composition were investigated. It is found that the gradual replacement of oxides, TeO2 by Li2O, decreases the glass transition temperature and increases the fragility of the glasses. Also, IR spectra revealed broad weak and strong absorption bands in the investigated range of wave numbers from 4000 to 400 cm−1. These bands were assigned to their corresponding bond modes of vibration with relation to the glass structure.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
A.H. Khafagy, A.A. El-Adawy, A.A. Higazy, S. El-Rabaie, A.S. Eid,