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Mostrando ítems 121-130 de 132
Artículo
Excellent magnetocaloric properties of melt-extracted Gd-based amorphous microwires
(AIP Publishing, 2012-09-06)
We report upon the excellent magnetocaloric properties of Gd53Al24Co20Zr3 amorphous microwires. In addition to obtaining the large magnetic entropy change (-DSM rv 10.3 J/kg K at TC rv 95 K), an extremely large value of ...
Artículo
Effect of mixing the low-valence transition metal atoms Y = Co, Fe, Mn, Cr, V, Ti, or Sc on the properties of quaternary Heusler compounds Co2-xYx FeSi (0≤x≤1)
(American Physical Society, 2022-06-29)
In this paper we report an experimental study of structural, magnetic, and mechanical properties of quaternary Heusler alloys Co2−x Yx FeSi (Y = Co, Fe, Mn, Cr, V, Ti, or Sc, 0 x 1) and the experimental findings are ...
Artículo
Field dependence of the magnetocaloric effect in materials with a second order phase transition: A master curve for the magnetic entropy change
(AIP Publishing, 2006)
The field dependence of the magnetic entropy change can be expressed as SM Hn. For soft magnetic amorphous alloys n=1 well below the Curie temperature TC , n=2 in the paramagnetic range, and n 0.75 for T=TC. The first ...
Artículo
Study of Phases Evolution in High-coercive MnAl Powders Obtained Through Short Milling Time of Gas-atomized Particles
(Elsevier, 2017)
Gas-atomized Mn54Al46 particles constituted nominally of only ε- and γ2-phases, i.e. no content of the ferromagnetic L10-type τ-phase, have been used to study the evolution of phases during short time of high-energy milling ...
Artículo
Sustainable Nanomagnetism: Investigating the Influence of Green Synthesis and pH on Iron Oxide Nanoparticles for Enhanced Biomedical Applications
(MDPI, 2023-09-21)
This study comprehensively analyzed green nanomagnetic iron oxide particles (GNMIOPs) synthesized using a green method, investigating their size, shape, crystallinity, aggregation, phase portions, stability, and magnetism. ...
Artículo
Quantifying the structure and properties of nanomagnetic iron oxide particles for enhanced functionality through chemical synthesis
(MDPI, 2023-08-03)
This comprehensive study investigates the properties of chemical nanomagnetic iron oxide particles (CNMIOPs) synthesized through a chemical method. The primary objective is to examine how pH levels and washing solvents ...
Artículo
Possible half-metallic behavior of Co2-xCrxFeGe Heusler alloys: theory and experiment
(American Physical Society, 2021-07-28)
This paper reports a combined experimental and theoretical study of structural, electronic, magnetic, and mechanical properties of quaternary Heusler alloys Co2−xCrxFeGe prepared by arc-melting with Cr concentrations 0 ...
Artículo
Influence of magnetic interactions between phases on the magnetocaloric effect of composites
(AIP Publishing, 2013)
Magnetocaloric materials with coexisting magnetic phases appear either due to the phase coexistence in first order phase transitions, or due to the development of composites, which are known to enhance the refrigerant ...
Artículo
First- and second-order phase transitions in RE6Co2Ga (RE = Ho, Dy or Gd) cryogenic magnetocaloric materials
(Science in China Press, 2021)
Rare-earth (RE) rich intermetallics crystallizing in orthorhombic Ho6Co2Ga-type crystal structure exhibit peculiar magnetic properties that are not widely reported for their magnetic ordering, order of magnetic phase ...
Artículo
Analysis of the magnetic field dependence of the isothermal entropy change of inverse magnetocaloric materials
(Elsevier, 2021)
In this work, the magnetic field dependence of the inverse magnetocaloric (MC) effect is analyzed using a mean field approach for describing antiferromagnetic to ferromagnetic magnetoelastic transitions. The model is able ...