Foreign Cooperating Institutions - Institute of Inorganic Chemistry ...

Field of Scientific Interest
The Department of Molten Systems deals with the investigation of liquids that can be
characterized by the existence of columbic interactions at high temperatures. Basic physicochemical
properties like phase equilibria, density, electric conductivity, viscosity, interfacial
and surface tension are under the study together with the development of semi-empirical
models for better understanding of the relations between the composition, properties and
structure of inorganic melts. Preferentially, fluoride systems based on tantalum, niobium,
titanium, tin and aluminium are the objects of the research. Ambition of the Department is the
implementation of modern techniques, such as high temperature NMR and MAS NMR
spectroscopy, high temperature neutron and synchrotron diffraction methods or secondary ion
mass spectroscopy into the investigation of melts. . Rapid solidification processing is applied
in order to prepare metastable phases with the structure close to that of the liquid phase.
Applied research of the Department is connected with optimization of conditions for
electrochemical aluminium production. In recent years circulations of impurities like
phosphorus, iron, carbon, silicon and vanadium in the electrolyte for aluminium production
and their distribution between aluminium, electrolyte, anode gases and graphite have been
studied, with the aim to improve the efficiency of the production and quality of the produced
aluminium.
Projects and Cooperation
Structure and solubility of niobium complexes: high temperature and high
resolution solid state NMR study of the system KF-K2NbF7-Nb2O5
Project No. 18182
Duration: 2005 – 2006
Principal Investigator in Slovakia: Ing. F. Šimko, PhD.
In Collaboration with Centre de Recherches Sur Les Materiaux a Haute Temperature,
CNRS, 1D, Avenue de la recherche Scientifique 45071 Orleans, France
The formation of oxofluoroaluminates and Si and V impurities behaviour in
the system NaF-AlF3-Al2O3
VEGA Project 2/4071/04
Duration: 2004 – 2006
Principal Investigator: Ing. I. Nerád, CSc.
Magnetostructural correlations in unconvential magnetic materials
APVT Project No. APVT-20-005204
Duration: 2005 – 2007
Principal Investigator: Prof. RNDr. A. Feher, DrSc., University of P. J. Šafárika in Košice
Principal Investigator in IIC: Ing. M. Boča, PhD.
The physico-chemical and thermodynamic properties of the industrial
molten fluoride systems on the base of aluminium, niobium and tantalum
APVT Project No. APVT-51-008104
Duration: 2005 – 2007
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