About department

Field of Scientific Interest

The main scientific interest of the Department of Molten Systems is the research of physico-chemical properties of molten salts using the experimental and theoretical tools. The phase equilibria, density, electric conductivity, viscosity and surface tension are under study together with the development of semi-empirical models to better understand the relations between the composition, the properties and the structure of inorganic melts. Fluoride systems based on zirconium, tantalum, niobium, titanium and aluminium belong to the current objects of our research. Applied research of the Department is related to optimization of conditions for electrochemical aluminium production. Investigation of industrial applications of molten salts comprises metallurgical applications, accumulation of solar energy, transport of heat, molten salts as cooling media-investigation of corrosion in interaction of construction materials (alloys, special alloys, ceramics) with melts. The research is supported by application of spectral, thermal and diffraction techniques (NMR, XPS, SIMS, IR, DSC/DTA, X-ray and neutron powder diffraction and single crystal analysis).


  • Head of department: doc. Ing. Miroslav Boča, DrSc.

Selected Publications

BOČA, Miroslav** – MOLOKEEV, Maxim – RAKHMATULLIN, Aydar – KUBÍKOVÁ, BlankaNETRIOVÁ, Zuzana. The structure of the metastable K18Ta5Zr5F63 phase. In New Journal of Chemistry, 2020, vol. 44, no. 22, p. 9264-9270.

KITYK, A.** – PAVLÍK, ViliamBOČA, Miroslav – PANGALLO, Domenico – KAPUSTOVÁ, Magdaléna – HALAHOVETS, Yuriy. Electrochemical surface treatment to enhance corrosion resistance and bioresistance of medical-grade stainless steels. In Journal of Materials Engineering and Performance, 2020, vol. 29, no. 9, p. 5985-5994.

KUBÍKOVÁ, Blanka**MLYNÁRIKOVÁ, Jarmila – WU, Shuang – MIKŠÍKOVÁ, EvaPRIŠČÁK, JozefBOČA, MiroslavKORENKO, Michal. Physicochemical investigation of the ternary (LiF+MgF2)eut + LaF3 molten system. In Journal of Chemical and Engineering Data, 2020, vol. 65, p. 4815-4826.

PROTSENKO, V.** – KITYK, A. – DANILOV, F.I. – PAVLÍK, ViliamBOČA, Miroslav. Electropolishing of metals and alloys using electrochemical systems based on environmentally safe deep eutectic solvents. In Environmentally friendly technologies: Advances in research and future directions. New York, USA, Nova Science Publishers, Inc., 2020, p. 101-131.

PUCHOŇOVÁ, Miroslava** – MAROSZOVÁ, Jaroslava – VASKOVÁ, Zuzana – MAZÚR, Milan – VALIGURA, D. – KOMAN, M. – MONCOĽ, J. One dimensional carboxylatocopper(II) coordination polymers with 4-pyridylmethanol. In Inorganica Chimica Acta, 2020, vol. 510, art. no. 119763.

RAKHMATULLIN, Aydar** – ŠIMKO, František** – VERON, Emmanuel – ALLIX, Mathieu – MARTINEAU-CORCOS, Charlotte – FITCH, Andy – FAYON, Franck – SHAKHOVOY, Roman A. – OKHOTNIKOV, Kirill – SAROU-KANIAN, Vincent – KORENKO, MichalNETRIOVÁ, Zuzana – POLOVOV, Ilya B. – BESSADA, Catherine. X-ray diffraction, NMR studies, and DFT calculations of the room and high temperature structures of rubidium cryolite, Rb3AlF6. In Inorganic Chemistry, 2020, vol. 59, no. 9, p. 6308-6318.

SMRČOK, Ľubomír – LE BAIL, Armel – BOČA, Miroslav** – RAKHMATULLIN, Aydar. Polymorphism of K2ZrF6. In Crystal Growth & Design, 2020, vol. 20, no. 6, p. 3867-3881.

ŠIMKO, František**PRIŠČÁK, Jozef – KUBIŇÁKOVÁ, Emília – KORENKO, Michal. Effect of the alkaline metal cations on the electrical conductivity of the molten cryolites (K3AlF6, Rb3AlF6, and CsAlF6). In Journal of Chemical and Engineering Data, 2020, vol. 65, no. 5, p. 2642-2648.


International and National Projects

RARE – Interaction of fluoride melts of rare earth elements with oxides of critical elements in the context of special applications
(Interakcia fluoridových taveninových systémov prvkov vzácnych zemín s oxidmi kritických prvkov v kontexte špeciálnych aplikácií)
Programme: APVV-19-0270
Project coordinator IIC: doc. Ing. M. Boča, DrSc.
Duration: 07/2020 – 06/2024
Phase changes of metal oxides in fluoride melts
(Fázové premeny oxidov kovov v roztavených fluoridových systémoch)
Programme: VEGA
Project coordinator IIC: doc. Ing. M. Boča, DrSc.
Duration: 01/2020 – 12/2023
Fluoride melts with potential applications in electrochemical aluminum production
(Fluoridové taveninové systémy s potenciálom využitia v elektrochemickej výrobe hliníka)
Programme: 2/0060/18
Project coordinator IIC: Ing. F. Šimko, PhD.
Duration: 01/2018 – 12/2021



Foreign Cooperating Institutions

  • Kola Science Centre RAS, Apatity, Russia
  • Ecole Polytechnique IUSTI-CNRS, Marseille, France
  • CEMHTI-CNRS, Orleans, France
  • Nuclear Research Institute, Řez, Czech Republic
  • College of Engineering, Valparaiso University, USA