Abstract
Ultraviolet visible near-infrared (UV/VIS/NIR) and differential thermal analysis (DTA) measurements were carried out in order to investigate the optical and thermal properties of TeO2-GeO2-ZnO glasses. The samples were prepared by fusing the mixture of their respective reagent grade powders in a platinum crucible at 850°C for 1h. According to the DTA scan curves of 0.85TeO2-0.05GeO2-0.10ZnO and 0.90TeO 2-0.05GeO2-0.05ZnO glasses taken at different heating rates, activation energy values and the Avrami constants for the crystallization peaks were determined. The absorption spectra measured between 300-800 nm wavelength region were used to determine the optical band-gap and Urbach energies of the glasses.
| Original language | English |
|---|---|
| Pages (from-to) | 1875-1878 |
| Number of pages | 4 |
| Journal | Key Engineering Materials |
| Volume | 264-268 |
| Issue number | III |
| Publication status | Published - 2004 |
| Event | Proceedings of the 8th Conference and Exhibition of the European Ceramic Society - Istanbul, Turkey Duration: 29 Jun 2003 → 3 Jul 2003 |
Keywords
- Crystallization behavior
- Optical energy gap
- TeO-GeO-ZnO glasses