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Thermal properties of oxide glasses |
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| Authors: | S. Lendvayová K. Moricová E. Jóna S. Uherková J. Kraxner V. Pavlík R. Durný S. C. Mojumdar |
| Affiliation: | 1. Faculty of Industrial Technologies, Department of Chemical Technologies and Environment, Tren?ín University of A. Dub?ek, 020 32, Púchov, Slovakia 2. Vitrum Laugaricio–Joint Glass Center of Institute of Inorganic Chemistry SAS, Alexander Dub?ek University of Tren?ín and RONA Lednické Rovne, ?tudentská 2, 911 50, Tren?ín, Slovak Republic 3. Institute of Inorganic Chemistry, Slovak Academy of Sciences, 842 36, Bratislava, Slovakia 4. University of Sládkovi?ovo, Fu?íkova 269, 925 21, Sládkovi?ovo, Slovak Republic 5. Faculty of Electrical Engineering and Information Technology, Department of Nuclear Physics and Technology, Slovak University of Technology, Ilkovi?ova 3, 812 1, Bratislava, Slovak Republic 6. Department of Chemistry, University of Guelph, Guelph, ON, Canada |
| Abstract: | A criterion based on the length of induction period of crystallization was used to study the effect of added CoO and NiO oxides on the thermal stability of Li2O·2SiO2 glass system against crystallization. It was found out that the thermal stability of studied glasses against crystallization is Li2O·2SiO2 < Li2O·2SiO2·0.1CoO < Li2O·2SiO2·0.1NiO. The addition of CoO and NiO oxides to Li2O·2SiO2 glass system increases its thermal stability. These results coincide with the order determined by stability criteria based on the characteristic temperatures. |
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