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.

 

International and National Projects

BENECOM – The behaviour of new progressive construction materials in aggressive environment of molten salts
(Vlastnosti nových progresívnych konštrukčných materiálov v agresívnom prostredí roztavených solí)
Programme: APVV-15-0738
Project coordinator IIC: Ing. F. Šimko, PhD.
Partner: Institute of Physics SAS
Duration: 07/2016 – 06/2020
FLUMECE – Fluoride melts of critical elements for unconventional applications
(Fluoridové taveniny kritických prvkov pre nekonvenčné aplikácie)
Programme: APVV-15-0479
Project coordinator IIC: doc. Ing. M. Boča, DrSc.
Duration: 07/2016 – 06/2020
Molten fluoride systems with higher functionality
(Roztavené fluoridové systémy s vyššou funkcionalitou)
Programme: VEGA 2/0114/16
Project coordinator IIC: doc. Ing. M. Boča, DrSc.
Duration: 01/2016 – 12/2019
New technology in Aluminium production – Physicochemical and electrochemical investigation of promising potassium cryolite molten systems
(Nové technológie pri výrobe hliníka – Fyzikálno-chemické a elektrochemické skúmanie sľubných draselných kryolitových sústav)
Programme: SK-CN-2015-0014, NewTechAl
Project coordinator IIC: Ing. B. Kubíková, PhD.
Partner: Northeastern University, Shenyang, China
Duration: 01/2016 – 12/2017
HITEMPCORR – High-temperature properties of materials corrosion in molten salts
( Vlastnosti materiálov po vysokoteplotných koróziách v roztopených soliach)
Programme: SASPRO 1119/02/02 mobility scheme “Incoming”
Project coordinator IIC: doc. Ing. M. Boča, DrSc.
Duration: 11/2015 – 11/2018
Low melting electrolytes and wetted cathodes with potential for electrolytic aluminium production
(Elektrolyty s nízkou teplotou topenia a zmáčané katódy s potenciálom pre zlepšenie procesu výroby hliníka)
Programme: VEGA 2/0116/14
Project coordinator IIC: Ing. F. Šimko, PhD.
Duration: 01/2014 – 12/2017

 

Selected Publications

BUČKO, Tomáš – ŠIMKO, František. Effect of alkaline metal cations on the ionic structure of cryolite melts: Ab-initio NpT MD study. In Journal of Chemical Physics, 2018, vol. 148, no. 6, p. 064501-1-064501-x.

KONTRÍK, Martin – ŠIMKO, František – GALUSKOVÁ, Dagmar – NOSKO, Martin – BIZOVSKÁ, Valéria – HIČÁK, Michal – GALUSEK, Dušan – RAKHMATULLIN, Aydar – KORENKO, Michal. A corrosion mechanism of titanium diboride in KF-AlF3-Al2O3 melt. In Journal of the European Ceramic Society, 2018, vol. 38, no., p. 1143-1151.

RAKHMATULLIN, Aydar – BOČA, Miroslav – MLYNÁRIKOVÁ, Jarmila – HADZIMOVÁ, Eva – VASKOVÁ, Zuzana – POLOVOV, Ilya B. – MIČUŠÍK, Matej. Solid state NMR and XPS of ternary fluorido-zirconates of various coordination modes. In Journal of Fluorine Chemistry, 2018, vol. 208, p. 24-35.

ŠIMURDA, Michal – BOČA, Miroslav – ŠVEC, Peter – ŠVEC, Peter Jr. – JANIČKOVIČ, Dušan – SHI, Zhongning – MLYNÁRIKOVÁ, Jarmila. Analysis of the extremely rapidly cooled molten system (LiF-CaF2)eut-LaF3. In New Journal of Chemistry, 2018, vol.42, p. 4612-4623.

BOČA, Miroslav – GURIŠOVÁ, Veronika – ŠIMKO, František. Some aspects of the wavelength dispersive x-ray determination of fluorine content in various matrices. In Journal of Applied Spectroscopy, 2017, vol. 84, no. 2, 8 p.

KORENKO, Michal – LARSON, C. – BLOOD, K. – PALUMBO, R. – NUDEHI, S. – DIVER, R. – BLOOD, D. – ŠIMKO, František – VENSTROM, Luke J. Technical and economic evaluation of a solar thermal MgO electrolysis process for magnesium production. In Energy, 2017, vol. 135, p. 182-194.

LIU, Aimin – SHI, Zhongning – XIE, K. – HU, Xianwei – GAO, Bingliang – KORENKO, Michal – WANG, Zhaowen. Extraction of Al-Si master alloy and alumina from coal fly ash. In Journal of Mining and Metallurgy: Section B: Metallurgy, 2017, vol. 53, no. 2, p. 155-162.

LIU, Aimin – SHI, Zhongning – HU, Xianwei – KUBÍKOVÁ, Blanka – BOČA, Miroslav – GAO, Bingliang – WANG, Zhaowen. Production of metals and oxygen from coal ash by aluminothothermic and electrochemical reduction process. In Journal of Alloys and Compounds, 2017, vol. 718, p. 279-287.

MLYNÁRIKOVÁ, Jarmila – BOČA, Miroslav – MIKŠÍKOVÁ, Eva – NETRIOVÁ, Zuzana. Volume properties of the molten systems MF-K2TaF7 (MF = LiF, NaF and KF). In Journal of Thermal Analysis and Calorimetry, 2017, vol. 129, no. 1, p. 475-486.

PATEL, Niketan Sarabhai – PAVLÍK, Viliam – BOČA, Miroslav. High-temperature corrosion behavior of superalloys in molten salts – A review. In Critical Reviews in Solid State and Materials Sciences, 2017, vol. 42, no. 1, p. 83-97.

SHEN, Lingling – HE, Wencai – LIU, Aimin – ZHAO, Bo – REDDY, Ramana – KUBÍKOVÁ, Blanka – KORENKO, Michal – SHI, Zhongning. Electrochemical synthesis of PbTe in NaOH solution. In International Journal of Electrochemical Science, 2017, vol. 12, p. 10824-10837.

ŠIMKO, František – RAKHMATULLIN, Aydar – FLORIAN, Pierre – KONTRÍK, Martin – KORENKO, Michal – NETRIOVÁ, Zuzana – DANIELIK, Vladimír – BESSADA, Catherine. (Oxo)(fluoro)-aluminates in KF-Al2O3 system: thermal stability and structural correlation. In Inorganic Chemistry, 2017, vol. 56, no. 21, p. 13349-13359.

 

 

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