rok 2006 - Fakulta chemickej a potravinárskej technológie ...

III. TEACHING
A. Undergraduate Study:
2. semester (Bc) Inorganic materials 2/2/0 Jamnický, Smrčková
6. semester (Bc) Materials technology 2/0/0 Palou
Bachelor’s thesis 0/0/4 Palou, Smrčková
1. semester (MSc) Inorganic chemistry III 2/2/0 Jamnický
Solid state physics 2/0/0 Lokaj, Smrčková
Raw materials and technical
mineralogy
2/1/0 Svetík, Kozánková, Lokaj
Specialised laboratory practices I 0/0/10
Kákoš, Kovár, Kozánková, Palou,
Smrčková, Svetík
2. semester (MSc) High temperature processes 2/1/0 Kovár
Applied heat technique 2/1/0 Kovár
Specialised laboratory practices II 0/0/8 Smrčková, Kovár, Jamnický, Kákoš
Factory praxis
three
weeks
Jamnický, Smrčková
3. semester (MSc) Technology of spec. inorg. materials 2/0/0 Kákoš
Inorganic binders technology 2/0/0 Palou
Technology of ceramics 2/0/0 Smrčková
Technology of glass 2/0/0 Jamnický
3. semester (MSc) Specialised laboratory practices III 0/0/10
Dováľ, Jamnický, Kákoš,
Kozánková, Palou, Smrčková
4. semester (MSc) Master’s thesis laboratory 0/0/27 Kovár, Palou, Smrčková
IV. CURRENT RESEARCH PROJECTS
VEGA Project No 1/1380/04 Preparation of Al2O3 ceramics from nanosize particles
(Vladimír Kovár)
Transparent α-Al 2 O 3 ceramics was prepared by colloidal technique from suspension of α-Al 2 O 3 powders TM-DAR
(160 nm) in boehmite sol with concentration from 0,1 mass % to 2,7 mass %. Boehmite stabilizes the suspension,
acts as lubricant at pressing, increases the strength of green compacts and accelerates the sintering. Samples
were prepared by pressing (50 MPa) – vacuum filtration, followed by conventional (free) sintering on air at
1 275 °C and by final hot isostatic pressing (1 275 °C, 160 MPa) in argon. The density of unpolished samples is
99,72 % of theoretical value. Microstructure of the material is homogeneous, composed of grains sized to 560 nm.
Mechanical properties (toughness: 4,5 MPa.m 1/2 to 5,3 MPa.m 1/2 , hardness: 19 GPa to 22 GPa) are on the
maximal level of published data for this kind of ceramics and were obtained in fracture across the grains in
material. Both hardness and the toughness of material markedly decrease in the range of investigated average
grain size of 1,6 μm – 4,0 μm, in the submicron range (0,5 μm – 1 μm)the influence of grain size is not apparent.
Project duration: from 01.01.2004 to 31.12.2006
APVV Project 20-015904: New biomaterials and biosensors for clinical use (Ján Labuda).
Preparation of new biomaterials based on biopolymers and bioinorganic materials for clinical application as well
as biosensors based on deoxyribonucleic acid (DNA) and lipoproteins (LDL) for direct use in clinical medicine.
The project, as it is solved at Department of Ceramics, Glass and Cement, deals with the synthesis of composite
biomaterials based on inorganic - organic and inorganic-inorganic biomaterials. The main purpose of the work is
the precipitation in-situ of hydroxyapatite in the matrix of biopolymers (PVA) in order to optimize the mechanical
strength and bioactivity of novel biomaterials. Also, the project is aimed at the synthesis of composite biomaterials
fluor-hydroxyapatite and study of mechanical strength, microstructure, thermal stability, biocompatibility and
bioactivity. Other important field of project is the development of bioglass and bioglass ceramics in lithium
disilicate – fluorapatite system. Kinetics and mechanism of thermo-nucleation and crystallization, mechanical
properties, bioactivity of glass and glass-ceramics with different content of “apparent fluorapatite” are the main
investigation points of the project.
Project duration: from 01.01.2005 to 31.12.2007
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