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https://doi.org/10.5562/cca2860

Tailoring of K_0.8Al_0.7Fe_0.15Si_2.25O₆ Leucite Based Dental Ceramic Material

Aleksandar Kremenović orcid.org/0000-0001-8845-2332 ; Laboratory of Crystallography, Faculty of Mining and Geology, University of Belgrade, Đušina 7, 11001 Belgrade, Serbia
Martin Fabián ; Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 04001 Košice, Slovakia
Predrag Vulić ; Laboratory of Crystallography, Faculty of Mining and Geology, University of Belgrade, Đušina 7, 11001 Belgrade, Serbia
Čedomir Jovalekić ; Institute for Multidisciplinary Studies, University of Belgrade, Kneza Višeslava 1, 11001 Belgrade, Serbia
Jaroslav Briančin ; Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 04001 Košice, Slovakia

Sažetak

Potassium based ceramic materials composed from leucite in which 5 % of Al is exchanged with Fe and 4 % of hematite was synthesized by mechanochemical homogenization and annealing of K₂O-SiO₂-Al₂O₃-Fe₂O₃ mixtures. Synthesized material was characterized by X-ray Powder Diffraction (XRPD) and Scanning Electron Microscopy coupled with Energy Dispersive X-ray spectroscopy (SEM/EDX). The two methods are in good agreement in regard to the specimen chemical composition suggesting that a leucite chemical formula is K_0.8Al_0.7Fe_0.15Si_2.25O₆. Rietveld structure refinement results reveal that about 20 % of vacancies exist in the position of K atoms.

This work is licensed under a Creative Commons Attribution 4.0 International License.

Ključne riječi

leucite; dental ceramic material; structure; synthesis; ball milling

Hrčak ID:

157570

URI

https://hrcak.srce.hr/157570

Datum izdavanja:

20.6.2016.

Posjeta: 3.066 *