Monika Radušovská
Slovak Academy of Sciences
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Publication
Featured researches published by Monika Radušovská.
Materials Science Forum | 2014
K. Zmorayová; Samuel Piovarči; Monika Radušovská; V. Antal; V. Kavečanský; Pavel Diko
A La0.67Ca0.33-xSrxMnO3 (x=0.33; 0.03; 0) perovskite magnetocaloric powders were prepared by solid state synthesis in air. Phase transformations were characterized by thermal analyses and the phase composition was confirmed by X-ray powder diffraction. Pressed pellets were sintered at different temperatures. Microstructure analyses were done by polarized light microscopy and scanning electron microscopy. The influence of sintering conditions on porosity, grain size and content of secondary phases is shown.
Superconductor Science and Technology | 2016
Wen Zhao; Yunhua Shi; Monika Radušovská; Anthony R. Dennis; John Hay Durrell; Pavel Diko; D.A. Cardwell
This work was supported by the Engineering and Physical Sciences Research Council (Grant ID: EP/K02910X/1). Authors would like to acknowledge the support from project: APVV No. 0330-12, VEGA 2/0121/16.
IEEE Transactions on Applied Superconductivity | 2016
Monika Radušovská; D. Volochová; V. Antal; P. Diko
Conditions for epitaxial growth of single-grain YBCO bulk by TSMG process were tested in the YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7</sub>- Y<sub>2</sub>BaCuO<sub>5</sub> system with CeO<sub>2</sub> addition. The obtained results define the temperature window of isothermal single-grain growth. The measurements of crystal growth show that the growth rate decreases with the distance from the seed. Observed behavior is explained by decreasing peritectic temperature in the melted rest of the sample due to the segregation of CuO, which appears in the system as a result of the reaction of the Y123 phase with CeO<sub>2</sub>.
Materials Science Forum | 2014
K. Zmorayová; Samuel Piovarči; Monika Radušovská; V. Antal; Pavel Diko
YBCO (YBa2Cu3O7/ Y2BaCuO5) bulk single-grain superconductors were prepared by Top-Seeded Melt-Growth (TSMG) process. CeO2, BaCeO3 and BaO2 powders were added to nominal composition Y1.5Ba2Cu3Oy (Y-123) with the aim to refine Y2BaCuO5 (Y-211) secondary particles, which provide pining. Added powders were refined by friction milling. The system behaviour was characterized by thermal analyses. Microstructure of prepared samples was studied by polarized light microscopy and the influence of additions is described.
Materials Science Forum | 2014
M. Šefčiková; Samuel Piovarči; Monika Radušovská; V. Antal; Pavel Diko
The YBCO bulk single-grain superconductors were prepared by Top-Seeded Melt-Growth (TSMG) process. Y2BaCuO5 (Y211) fine powder was added to YBa2Cu3O7-δ (Y123) nominal composition. Powder refinement was characterized by X-ray powder difractometry, laser granulometry and scanning electron microscopy. The system behaviour was characterized by thermal analysis. Microstructure of prepared samples was studied by polarized light microscopy. The influence of Y211 addition the sample microstructures are shown.
Physica C-superconductivity and Its Applications | 2013
Pavel Diko; D. Volochová; Monika Radušovská; K. Zmorayová; M. Šefčiková; Vitalij Antal; Karel Jurek; M. Jirsa; J. Kováč
Physica C-superconductivity and Its Applications | 2014
D. Volochová; Karel Jurek; Monika Radušovská; Samuel Piovarči; V. Antal; J. Kováč; M. Jirsa; P. Diko
Physics Procedia | 2013
V. Antal; D. Volochová; K. Zmorayová; Monika Radušovská; P. Diko
Physica C-superconductivity and Its Applications | 2013
D. Volochová; Samuel Piovarči; Monika Radušovská; V. Antal; J. Kováč; Karel Jurek; Milos Jirsa; Pavel Diko
Physics Procedia | 2013
K. Zmorayová; M. Sefcikova; D. Volochová; Monika Radušovská; V. Antal; S. Piovarci; P. Diko
