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Rapid solidification of cryolite and cryolite–alumina melts

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Abstract

Rapid solidification processing (with a cooling rate in the interval 105–106 K s−1) was used to prepare deeply undercooled cryolite–alumina melts. These samples were analyzed by XRD, infrared, and Raman spectroscopy. Besides cryolite, the amorphous phase and a low amount of ι-Al2O3 were detected. Annealing of the quenched sample revealed the transformation of metastable amorphous phases into different products depending on the annealing conditions. The results obtained showed that all of the elements (Na, Al, O, and F) are probably present in the amorphous parts of the quenched samples.

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Acknowledgments

Slovak Grant Agencies VEGA 2/7077/27, VEGA 2/0058/09, and APVV-0413-06 are acknowledged for financial support. This publication is the result of the project implementation: Centre for Materials, Layers, and Systems for Applications and Chemical Processes Under Extreme Conditions, supported by the Research & Development Operational Programme, funded by the ERDF.

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Authors and Affiliations

  1. Institute of Inorganic Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, 845 36, Bratislava, Slovakia

    Marián Kucharík, Michal Korenko & Miroslav Boča

  2. Institute of Physics, Slovak Academy of Sciences, Dúbravská cesta 9, 845 36, Bratislava, Slovakia

    Dušan Janičkovič

  3. Department of Microelectronics, Faculty of Electrical Engineering and Information Technology, Slovak University of Technology, Ilkovičová 3, 812 19, Bratislava, Slovakia

    Magdaléna Kadlečíková

  4. Institute of Electrical Engineering, Slovak Academy of Sciences, Dúbravská cesta 9, 841 04, Bratislava, Slovakia

    Jozef Vincenc Oboňa

Authors
  1. Marián Kucharík
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  2. Michal Korenko
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  3. Dušan Janičkovič
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  4. Magdaléna Kadlečíková
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  5. Miroslav Boča
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  6. Jozef Vincenc Oboňa
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Correspondence to Marián Kucharík.

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Kucharík, M., Korenko, M., Janičkovič, D. et al. Rapid solidification of cryolite and cryolite–alumina melts. Monatsh Chem 141, 7–13 (2010). https://doi.org/10.1007/s00706-009-0229-0

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  • DOI: https://doi.org/10.1007/s00706-009-0229-0

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