APVV-20-043505 (01.01.2006-31.12.2008)
Marian Kubliha, doc., Ing., PhD.
Study of disordered structures of non-metalllic by chosen physical methods.
To characterize internal arrangement of choosen kind of non-metallic materials (special glasses determined as active elements in infrared area of spectra, caoutchoouc mixtures for the automobile rubber preparation)on the basis of precise measurements of choosen physical properties. To utilize mentioned information at optimalization of composition and single parameters of mentioned materials preparation technology. It is possible to briefly resume the treatment on the physical properties description, the recovery correlations among reached values of measured physical properities and internal arrangement parameters, verification of obtained informations by means of other methods, results valuation, proposal of solutions, prospective optimalization of determining parameters, conclusion.
4/2007/08 (01.01.2008-31.12.2010)
Ing. Svetozár Demian
Development of metallurgical
processing of highly reactive Ti-based intermetallic alloys for extreme stress
The project is aimed at the development
of optimum metallurgical processing for highly reactive Ti based intermetallic alloys
(TiAl, TiB2 and others) with high melting point, and also at the research of
new systems suitable for extreme conditions characterised by high temperature,
aggressive environment, high mechanical and thermal stress. The required
chemical composition and lower price of the new generation of polyphase
Ti-based intermetallic alloy will be achieved using precursors prepared from
initial material using the original method of an isostatic reaction compaction
followed by remelting in plasma or arc furnace. This approach will ensure
significant improvement of chemical homogeneity, high flexibility in alloying
with required alloying elements and minimisation of impurity content. Thus,
required properties for extreme conditions will be obtained.
KEGA 3/5178/07 (01.01.2007-31.12.2009)
Prof. RNDr. Slabeycius, Juraj, CSc.
Multimedial support and conception of subject named "Diagnostic methods in material engineering".
Target of the project is multimedial promotion of subject named "Diagnostic methods in material engineering" redrafted for magister educational program "Materials engineering" by means of multimedial lectures and other teaching aids. Innovated laboratory measurements will be included to the subject too. Attractivenes of education will be increased by application of multimedial technologies, knowledges of students will be enhanced and creative approach to study will be stimulated. Extended version of subject will be exploited also for graduant preparation.
KEGA 3/4057/06 (12.02.2008-13.02.2008)
prof. Ing. Palček, Peter, PhD.
Electronic interactive Slovak-Slovak and Slovak-English dictionary of
Material Engineering.
Project is aimed at developing the
electronic dictionary of Material Engineering
on a web page available for universities and the Slovak Academy of Science free
of charge.
The dictionary is designed for teachers and researchers in the Slovak
universities. It comprises 1 200 selected expressions from the field on
Material Engineering, while any workplace can contribute and enhance it via its
web administrator. The explanation will be illustrated by
schemes, video-sequences, photographs and examples. English equivalent is also
given with individual expressions.
VEGA 1/3032/06 (01.01.2006-01.01.2006)
Milan Ožvold, prof., RNDr., CSc.
Preparation and physical properties of lead/free solders
The aim of this project is to increase the basic konwledge on lead-free solders as an interconnecting material. The work will cover the areas of physical, metallurgical and partially mechanical properties. Due to the special importance of today s application in electronics industry, the top four physical properties are:melting point temperature, electrical conductivity, thermal conductivity and surface tension. The surface tension of molten solder is a basic parameter affecting wettability and therefore solderability. The wettability and wetting reaction of the solder alloy are influenced by the interface reaction and intermetallic growth between solder and under bump metallization. The aim is establishing (micro)structure-property relations and potential reliability issue of Pb-free solders.
VEGA 1/3190/06 (01.01.2006-31.12.2008)
Peter Grgač, prof., Ing., CSc.
Study of the transformations processes in the rapidly solidified polycomponent multiphase alloys
Rapid solidification of undercooled melts in non-equilibrium conditions is used in several modern production technologies of high alloyed alloys and superalloys. These procedures are based on the production of rapidly solidified powders by inert gas atomisation. In the dependence on the chemical composition, size of a rapidly solidified particle and cooling conditions the variable metastable multiphase solidification microstructures are developed and later quantitatively and qualitatively altered during compaction processes. Project is focused on the detailed study of primary metastable structures and their transformations in the thermodeformation densification processes of polycomponent high alloyed technical alloys with intermediate phases of solidification origin. The main object of the project is on the base of experimental study and theoretical computations to develop a set of mutually connected knowledge providing a detailed description of transformation processes during the production and technological processing of high alloyed iron and nickel based alloys with the aim to contribute to optimistion of their chemical composition, production parameters and following technological processing.
VEGA 1/4107/07 (01.01.2007-31.12.2009)
Janovec Jozef, doc. Ing. DrSc.
Characteristics of quasicrystals and quasicrystalline approximants in Al-Pd-TM alloys (TM-transition metal)
The project aim is to characterise the phases in Al-Pd-Fe, Al-Pd-Co and Al-Pd-Rh-based alloys. The attention will be devoted to the description of lamellar forms accompanying transformations of quasi-crystalline phases. Stabile quasi-crystals, quasi-crystalline approximants and related crystalline phases will be characterised by means of transmission electron microscopy including electron diffraction, X-ray diffraction, thermal analysis and other methods. The examined samples will be supplied either by 6. RP EK Complex metallic alloys, Network of Excellence, or will be prepared in our own laboratories. The project contribution dwells in its connection with international scientific network uniting the experts from various fields and types of organisations (Academies of Science, universities). The project output will be also used in the study of progressive materials by means of modern experimental methods. The project reflects technological and physical aspects of Materials Science and can be considered a base research with the direct impact on the knowledge pool in the field and information exchange.
VEGA 1/0126/08 (01.01.2008-31.12.2010)
Ing. Mária Dománková, Phd.
Improvement of microstructural stability and corrosion resistance of stainless steels controlled by precipitation of secondary phases.
The process of the secondary phase precipitation controls the mechanical and physical properties of the stainless steels. The main goal of this project is characterisation of the influence of the chosen factors (chemical composition, annealing conditions, deformation) on kinetics and thermodynamics of the secondary phase precipitation in stainless steels.
VEGA 1/0173/08 (01.01.2008-31.12.2010)
Ing. Viera Trnovcová, CSc.
Physical properties of optical crystals and glasses of heavy metal halides, chalcogenides and oxides
To study optical, mechanical, thermophysical and electrical properties and phase transilition in crystalline, glassy and composite heavy metal halides, oxides, oxides and chalcogenides doped with rare earth, for applications in optonics, fiber optics, supernonics and dosimetry. To determine relations between properties, composition, defect structure and preparation technique.
VEGA 1/0148/08 (01.01.2008-31.12.2010)
Ing. Roman Moravčik, Phd.
Analysis of prepared by progressive powder metallurgy processes the tool materials
Project will be primary oriented to the analysis of distinguished parameters of atomisation process to distinguished characteristics of the microstructure of rapidly solidifed powder particles, which were prepared form highalloyed materials of tool steels and properties with respect of application possibilities. Obtained knowledge will be the base for correlation model design which simulates relations between rapid solidification of materials produced by powder matallurgy processes.
VEGA 1/0840/08 (01.02.2008-31.12.2010)
RNDr. Andrej Antušek, PhD.
Ab initio calculations of NMR properties with electron correlation and relativistic effects and vibrational corrections
This project is focused on precise ab initio calculations fo NMR properties of molecules. We will explore trends of all important contributions such as electron correlations effects, relativistic effects and vibrational corrections for NMR properties of selected systems. The accuracy which can be reached using "state of the art" quantum chemical methods will be evaluated by comparison of theoretical results and gas-phase NMR experimental values.