| Investigation of prepared nanostructure transparent oxyfluoride glass ceramic and Effects of Al2O3 on trapping fluorine and microstructure |
| Paper ID : 2528-UFGNSM13-FULL (R1) |
| Authors: |
|
elham samadbin *1, Reza Poursalehi2, parvin alizadeh3, Azam samadbin3 1tehran 2Nanomaterials Group, Department of Materials Engineering,
Faculty of Engineering and Technology,
Tarbiat Modares University,
Jalal Ale Ahmad Highway, Tehran, Iran. 3I want to publish my paper in AMR journal |
| Abstract: |
| Transparent glass-ceramics have been prepared by heat-treating oxyfluoride glasses in the SiO2-Na2O-CaO-CaF2-Al2O3 system. The nanocrystallisation of Ca4F2Si2O7 was achieved by controlling time and temperature parameters. Glasses and transparent glass-ceramics were characterized by XRD, DTA and Uv-spectrume. The mean crystal size 20 (nm) and the crystal fraction increase with the heat treatment. The crystallization of phases containing glass modifier elements as well as F anions leads to the increase in the viscosity of the remaining glass matrix which affects nanocrystallisation. |
| Keywords: |
| transparent glass ceramic, nanocrystalline, trapping fluorine |
| Status : Paper Accepted (Poster Presentation) |
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