Effects of mixed-alkali oxides on AC conductivity and dielectric properties of xNa2O-(20-x)K2O-30V2O5-50TeO2 glasses
| Autor: | R. Hisam, Ahmad Kamal Hayati Yahya, S.J. Japari |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Tellurite glasses Materials science Mixed-alkali effect Relaxation (NMR) Analytical chemistry Oxide General Physics and Astronomy 02 engineering and technology Dielectric Conductivity 021001 nanoscience & nanotechnology Alkali metal Thermal conduction 01 natural sciences AC conductivity lcsh:QC1-999 chemistry.chemical_compound chemistry Dielectric properties 0103 physical sciences 0210 nano-technology Glass transition Thermal analysis lcsh:Physics |
| Zdroj: | Results in Physics, Vol 16, Iss, Pp 102905-(2020) |
| ISSN: | 2211-3797 |
| Popis: | The melt-quenching technique was used to prepare tellurovanadate glasses containing sodium and potassium oxides with compositions of xNa2O-(20-x)K2O-30V2O5-50TeO2 (x = 0–20 mol%) to examine the impact of mixed-alkali oxide on alternating-current (AC) conductivity and dielectric properties. Structural analysis revealed the presence of bridging oxygen (BO) and non-bridging oxygen (NBO). Thermal analysis results demonstrated a minimum value of glass transition temperature (Tg) at x = 10 mol% with an increase in Na2O content. The variation of AC conductivity (σac) revealed a non-linear behaviour with Na2O at temperature |
| Databáze: | OpenAIRE |
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