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Study program: Advanced Materials



Theme: The study of the soft magnetic composites with ferrite as an insulation part


Supervisor: Assoc. Prof. RNDr. Ján Füzer, PhD.

Form of study: daily

Annotation: The study is oriented on investigation of the NiFe and FeSi based composite materials with ferrite as a nonconductive binder. Potential advantage of spinel ferrites when used as electroinsulating layer instead of other insulations is their ferrimagnetic behavior, improving the magnetic interaction between the ferromagnetic powder particles in the final composite. Part of the work is the investigation of the electrical resistivity, wideband complex permeability and energy losses in prepared soft magnetic composites. The aim is optimization of preparation process of soft magnetic materials with required magnetic properties at middle-frequencies.

Theme: Influence of anisotropy induced by thermal treatment on structural and magnetic properties of rapidly quenched soft magnetic materials


Supervisor: Prof. RNDr. Rastislav Varga, DrSc.

Consultant: Assoc. Prof. RNDr. Zuzana Vargová, PhD.

Form of study: daily

Annotation: The aim of the work is to study the influence of anisotropy induced by thermal treatment (under mechanical stress, magnetic field, etc.) on structural and magnetic properties of rapidly quenched materials in the shape of ribbons and wires.

Theme: The study of magnetic and structural properties nanoparticles for magnetic hypertermia


Supervisor: Assoc. Prof. RNDr. Adriana Zeleňáková, PhD.

Consultant: Assoc. Prof. RNDr. Vladimír Zeleňák, PhD.

Form of study: daily

Annotation: Since magnetic particles have unique features, the development of a variety of medical applications has been possible. The most unique feature of magnetic particles is their reaction to a magnetic force, and this feature has been utilized in applications such as drug targeting and as contrast agents for magnetic resonance imaging (MRI). Recently, magnetic nanoparticles have attracted attention because of their potential as heating mediators for cancer therapy (hyperthermia). The aim of PhD work is optimization of synthesis strategy for preparation of magnetic nanoparticles for magnetic hyperthermia as well as study of magnetic, structural and functional properties of magnetic nanoparticles from the perspective of their use in-vivo.

Theme: The study of phase transformation of amorphous glasses from amorphous to nanocrystalline structure by TEM and synchrotron based scattering and spectroscopic techniques and image techniques at XFEL.


Supervisor: Prof. RNDr. Pavol Sovák, CSc.

Consultant: RNDr. Štefan Michalik, PhD., Ing. Vladimír Girman, PhD.

Form of study: daily

Annotation: The thesis will deal with the preparation of metallic glasses in the form of ribbons and rods by melt-spinning technique and the copper mould casting method. The glassy structure of the as-prepared alloys will be investigated by TEM and synchrotron based scattering and spectroscopic techniques, namely high-energy X-ray diffraction (HEXRD) and X-ray absorption spectroscopy (XAS). The phase transformation from amorphous state to nanocrystalline one will be investigated by TEM and by MID beamline at XFEL in Hamburg.

References:
1. Structure and magnetic properties of finement based alloys. Univerzita Pavla Jozefa Šafárika 2008. - 158 s. - ISBN 978-80-7097-719-4.

Theme: Novel materials for sensors and data storage technologies


Supervisor: Mgr. Vladimír Komanický, PhD.

Consultant: Mgr. Tomáš Samuely, PhD.

Form of study: daily

Annotation: Primary goal of the dissertation thesis is preparation of systems using nanotechnology and nanolithography and PVD methodologies that can be used to prepare various types of systems for applications in fabrication of sensors and data storage technologies. These systems will be prepared in the form of thin films, multilayers and other types of nanostructures.

References:
1. Shao M. Electrocatalysis in Fuel Cells, A Non- and Low- Platinum Approach, 2013, XVI, 745, 327 pages.
2. Koper M., Wieckowski A. Fuel Cell Catalysis: A Surface Science Approach, 2009, 720 pages.



Actions


2017-05-18


Otvorenie Relaxačného kútika Mark pre študentov


2017-05-11


Selected topics in magnetism



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Pavol Jozef Šafárik University in Košice
Faculty of Science UPJŠ

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