Local structure characterization and thermal properties of P2O5MgO Na2O Li2O glasses doped with SiO2
| Autor: | Sanxi Huang, Ziyuan Chang, Fengnian Wu, Yunlong Yue, Sheng Li, Hongting Liu |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Infrared Chemistry Organic Chemistry Doping Analytical chemistry Mineralogy 02 engineering and technology Porous glass 021001 nanoscience & nanotechnology 01 natural sciences Analytical Chemistry Amorphous solid Inorganic Chemistry Polymerization 0103 physical sciences Thermal stability Fourier transform infrared spectroscopy 0210 nano-technology Glass transition Spectroscopy |
| Zdroj: | Journal of Molecular Structure. 1118:42-47 |
| ISSN: | 0022-2860 |
| DOI: | 10.1016/j.molstruc.2016.03.099 |
| Popis: | Pure and SiO2 doped P2O5 MgO Na2O Li2O glass has been prepared by the traditional melt quenching and heat treatment techniques. Via X-ray diffraction (XRD) patterns, all the samples are proved to be amorphous. Field emission scanning electron microscopy (FESEM) and macroscopic observation show that all the samples are homogeneous glasses and no phase splitting phenomenon. Fourier transform infrared (FTIR) spectrum shows that the amount of non-bridging oxygen decreases and the polymerization degree of the glass network structure increases after introducing SiO2 into glasses. Meanwhile, density and molar volume gradually decline with the increasing of SiO2. The glass transition (Tg) and the first crystallization temperature (Tc) indicates thermal stability increases in SiO2 added glasses. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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