BSU bulletin. Chemistry. Physics
Bibliographic description:
, , , THE INFLUENCE RARE EARTH OXIDE ON CRYSTALLIZATION BEHAVIOR OF GLASS-CERAMICS FROM WASTE GLASS AND FLY ASH // BSU bulletin. Chemistry. Physics. - 2016. №2-3. . - С. 3-9.
Title:
THE INFLUENCE RARE EARTH OXIDE ON CRYSTALLIZATION BEHAVIOR OF GLASS-CERAMICS FROM WASTE GLASS AND FLY ASH
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Fused glasses were prepared from waste window glass and fly ash of the IV thermal power station of Ulaanbaatar city (Mongolia). Raw mixtures for the glass consist of waste glass (30-40 wt.%), fly ash (55-65 wt.%), fluorite (5 wt.%). Cerium (IV) oxide was used (0.5 wt.%) as rare earth oxide additive. Mixtures with and without rare earth oxide addition were melted at 15000C temperature. The influence of cerium (IV) oxide on the crystallization behavior of glass ceramics were investigated by differential thermal analysis-thermogravimetry and x-ray diffraction (XRD) analyses.
The differential thermal analysis scan results indicated that the temperature of sharp exothermic peak appearing at 8980C is increasing to 9110C in rare earth oxide containing mixture. XRD analysis showed that the crystalline phases in the glass-ceramic was albite [NaAlSi3O8].
The differential thermal analysis scan results indicated that the temperature of sharp exothermic peak appearing at 8980C is increasing to 9110C in rare earth oxide containing mixture. XRD analysis showed that the crystalline phases in the glass-ceramic was albite [NaAlSi3O8].
Keywords:
waste glass, fly ash, glass-ceramics, rare earth oxide, differential thermal analysis, x-ray diffraction analyses, albite
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Jung Yoon. Characterization of wollastonite glass-ceramics made from waste glass and coal fly ash // J. Mater. Sci. Technol. - 2013. - V. 29 (2). - P. 149-153.
2. Jablonski G. L., Tyron S. S. Overview of coal combustion by-product utilization // In Proceeding of the 5th International Pittsburgh Coal Conference. - University of Pittdburgh, PA. - 1988. - P. 15.
3. Kim J. M., Kim H. S. Processing and properties of a glass-ceramic from coal fly ash from a thermal power plant through an economic process // J. Eur. Cream. Soc. - 2004. - V. 24. - P. 2825-2833.
4. Peng F., Liang K., Hu A., Shao H. Nano-crystal glass-ceramics obtained by crystallization of vitrified coal fly ash // Fuel. - 2004. - V. 83. - P. 1973-1977.
5. Shelby J. E. (Ed.). Rare Elements in Glasses, Trans Tech Publications. - Switzerland. - 1994. - 420 p.
6. Abdolil H., Alizadeh P., Agersted K. Fabrication and sealing performance of rare-earth containing glass–ceramic seals for intermediate temperature solid oxide fuel cell applications // Ceram. Int. - 2014. - V. 40. - P. 7545-7554.
7. Kansal I., Goel A., Tulyaganov D. U., Ferreira J. M. F. Structure and crystallization behaviour of some MgSiO3-based glasses // Ceram. Int. - 2009. - V.
35. - P. 3221-3227.
8. Wang J., Liu C., Zhang G., Xie J., Han J., Zhao X. Crystallization properties of magnesium aluminosilicate glass-ceramics with and without rare- earth oxides // J. Non. Cryst. Solids. - 2015. - V. 419. - P. 1-5.
9. Serbena F.C., Zanotto E.D. Internal residual stresses in glass-ceramics: A review // J. Non. Cryst. Solids. - 2012. - V. 358. - P. 975-984.
10. Wu Jianang, Li Zhen, Huang Yanqiu, Li Fei. Crystallization behavior and properties of K2O-CaO-AI2O3-SiO2 glass-ceramic // Ceram. Int. - 2013. - V. 39. - P. 7743–7750.
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