RT Journal Article
T1 Tailoring magnetic properties of Fe_(0.65)Co_(0.35) nanoparticles by compositing with RE_(2)O_(3) (RE = La, Nd, and Sm)
A1 Djellal, Nacira
A1 Peczkowski, Pawel
A1 Mekki, Djamel Eddine
A1 Navarro Palma, Elena
A1 Tahraoui, Tarek
A1 Pietosa, Jaroslaw
A1 Michalik, Jan Marek
A1 Marín Palacios, María Pilar
A1 Gondek, Lukasz
AB Fe-Co alloys are the most important soft magnetic materials, which are successfully used for a wide range of applications. In this work, the magnetic properties of lanthanide-substituted (Fe_(0.65)Co_(0.35))_(0.95)((RE_(2)O_(3))_(0.05) (RE = La, Nd, and Sm) nanoparticles, prepared by mechanical alloying, are reported. Our comprehensive studies (X-ray diffraction, Mossbauer spectroscopy, scanning electron microscopy with X-ray energy dispersive spectrometry, SQUID magnetometry and differential scannin)g calorimetry) have revealed different properties, depending on the dopant type. The RE_(2)O_(3) addition led to a decrease in the crystallite size and to an increase in the internal microstrain. Moreover, because of the high grain fragmentation tendency of RE_(2)O_(3), the cold welding between Fe-Co ductile particles was minimized, indicating a significant decrease in the average particle size. The parent Fe_(0.65)Co_(0.35) alloy is known for its soft ferromagnetism. For the La-substituted sample, the magnetic energy product was significantly lower (0.450 MG center dot Oe) than for the parent alloy (0.608 MG center dot Oe), and much higher for the Sm-substituted compound (0.710 MG center dot Oe). The processing route presented here, seems to be cost-effective for the large-scale production of soft magnetic materials.
PB MDPI AG
SN 1996-1944
YR 2022
FD 2022-10-18
LK https://hdl.handle.net/20.500.14352/72701
UL https://hdl.handle.net/20.500.14352/72701
LA eng
NO © 2022 by the authors. Licensee MDPIThis work was partly supported by the subsidies budget of the Faculty of Mathematics and Natural Sciences of Cardinal StefanWyszy´ nski University (Warsaw, Poland), the Institute of Physics of the Polish Academy of Sciences (Warsaw, Poland), and the Faculty of Physics and Applied Computer Science of AGH University Science and Technology (Kraków, Poland) via international cooperation.
NO Cardinal StefanWyszynski University (Warsaw, Poland)
NO Institute of Physics of the Polish Academy of Sciences (Warsaw, Poland)
NO AGH University Science and Technology (Krakow, Poland)
DS Docta Complutense
RD 8 may 2024