Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Samuel Dobák"'
Publikováno v:
Magnetochemistry, Vol 8, Iss 6, p 60 (2022)
We review the basic phenomenology of magnetic losses from DC to 1 GHz in commercial and laboratory-prepared soft ferrites considering recent concepts regarding their physical interpretation. This is based, on the one hand, on the identification of th
Externí odkaz:
https://doaj.org/article/8ac10c37c37a47399061f89de36c5c3a
Autor:
Cinzia Beatrice, Samuel Dobák, Vasiliki Tsakaloudi, Carlo Ragusa, Fausto Fiorillo, Luca Martino, Vassilis Zaspalis
Publikováno v:
AIP Advances, Vol 8, Iss 4, Pp 047803-047803-12 (2018)
Mn-Zn ferrite samples prepared by conventional solid state reaction method and sintering at 1325 °C were Co-enriched by addition of CoO up to 6000 ppm and characterized versus frequency (DC – 1GHz), peak polarization (2 mT – 200 mT), and tempera
Externí odkaz:
https://doaj.org/article/ba2f0483a14e401384e1c43808fe998e
Publikováno v:
Journal of Alloys and Compounds. 945:169254
Publikováno v:
Acta Materialia. 246:118667
Publikováno v:
Materials, Vol 14, Iss 6893, p 6893 (2021)
Materials
Volume 14
Issue 22
Materials
Volume 14
Issue 22
Manufacturing the magnetic cores in electrical machines impacts the magnetic performance of the electrical steel by inducing stresses near the cutting edge. In this paper, energy loss behaviour in non-oriented electrical steels punched with different
Publikováno v:
IEEE Magnetics Letters. 10:1-5
The magnetic properties of sintered Mn-Zn ferrites, Co2+ enriched by addition of CoO up to 6000 ppm, were measured in ring samples for a broad range of peak polarization values (2–200 mT) and frequencies (dc – 1 GHz). The results were analyzed by
Autor:
Peter Kollár, Bernd Weidenfeller, Zuzana Birčáková, Juraj Szabó, Michaela Dilyová, Jozef Bednarcik, František Onderko, Miloš Jakubčin, Samuel Dobák, Radovan Bureš, Ján Füzer, Mária Fáberová
Publikováno v:
Journal of Magnetism and Magnetic Materials. 543:168627
The paper presents novel soft magnetic composite materials composed of iron coated by Ni-Zn/Cu-Zn soft ferrite powder using dry particle coating route, without any other non-magnetic insulation. High-pressure compaction was applied to achieve relativ
Autor:
Ján Füzer, Zuzana Birčáková, Adriana Zeleňáková, Juraj Szabó, Peter Kollár, Mária Fáberová, Martin Tkáč, Radovan Bureš, Samuel Dobák, František Onderko
Publikováno v:
Journal of Magnetism and Magnetic Materials. 543:168640
The paper presents the soft magnetic composites consisting of iron particles with smoothed surfaces, coated by the two-layer insulation of SiO2 and Ni-Zn/Cu-Zn soft ferrite nano-sized grains with different content, which were prepared by the combinat
Autor:
P. Kurek, Radovan Bureš, Magdaléna Strečková, Yevhenii Osadchuk, Ján Füzer, Mária Fáberová, Peter Kollár, L'. Dakova, M. Vojtko, Samuel Dobák
Publikováno v:
IEEE Transactions on Magnetics. 54:1-6
This paper investigated the magnetic properties of novel soft magnetic composite (SMC) with ferrite nanofibers. Material consists of FeSi powder covered by resin and different amounts of Ni0.3Zn0.7Fe2O4 ferrite nanofibers. We prepared SMC with very h
Autor:
Radovan Bureš, P. Kurek, Peter Kollár, Magdaléna Strečková, Mária Fáberová, Samuel Dobák, Ľ. Ďáková, M. Vojtko, Yevhenii Osadchuk, Ján Füzer
Publikováno v:
Journal of Alloys and Compounds. 753:219-227
Soft magnetic materials with an excellent performance are desired for functional applications. We present an innovative method for manufacturing the soft magnetic composites that may pave the way for magnetic cores with improved electromagnetic prope