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Mostrando ítems 1-10 de 116
Artículo
Nanocrystalline Fe-Nb-(B,Ge) alloys from ball milling: microstructure, thermal stability and magnetic properties
(Elsevier, 2007)
Fe75B20Nb5, Fe75Ge10B10Nb5 and Fe75Ge20Nb5 alloys were prepared by ball milling from pure powders and their microstructure and magnetic properties were studied. A nanocrystalline solid solution of-Fe type is the main ...
Artículo
Design of Fe-containing GdTbCoAl high-entropy-metallic-glass composite microwires with tunable Curie temperatures and enhanced cooling efficiency
(Elsevier, 2021)
Through designing the composition and processing approach, the non-equiatomic (Gd36Tb20Co20Al24)100-xFex (x = 0, 1, 2 and 3 at.%) high-entropy-metallic-glass (HE-MG) alloy microwires were successfully fabricated by ...
Artículo
Magnetic anisotropy obtained from demagnetization curves: Influence of particle orientation and interactions
(AIP Publishing, 1999-04-27)
The influence of easy axis orientation and interparticle interactions on the apparent magnetic anisotropy distribution, obtained from the demagnetization curve analysis, has been studied. For any particle orientation, the ...
Artículo
Impact of structural disorder on the magnetic ordering and magnetocaloric response of amorphous Gd-based microwires.
(AIP Publishing, 2014)
We have studied the impact of structural disorder on the magnetic ordering and magnetocaloric response of amorphous Gd 68 Ni 32 and Gd 53 Al 24 Co 20 Zr 3 microwires. We find that the presence of structural ...
Artículo
On the broadening of the magnetic entropy change due to Curie temperature distribution
(AIP Publishing, 2014-03-03)
We have studied the correlation between the broadening of the isothermal magnetic entropy change and the Curie temperature (TC) distribution in nanostructured Pr2Fe17 and Nd2Fe17 alloys produced by high-energy ball-milling ...
Artículo
Field dependence of the magnetocaloric effect in Gd and (Er 1-xDyx)Al2: Does a universal curve exist?
(2007-07-27)
The field dependence of the magnetic entropy change of ferromagnetic lanthanide- based materials has been studied. The recently proposed master curve for the field dependence of the magnetocaloric effect of Fe-based amorphous ...
Artículo
Ball milling as a way to produce magnetic and magnetocaloric materials: a review
(Springer Nature, 2017)
Ball milling (BM) is a well-established technique for producing different materials in powder shape. Dynamical analysis of BM helps to optimize the process through simple but general relations (e.g., definition of an ...
Artículo
Analysis of magnetocaloric effect of ball milled amorphous alloys: Demagnetizing factor and Curie temperature distribution
(Elsevier, 2015)
The magnetocaloric effect (MCE) has been measured for an amorphous mechanically alloyed (MA) Co62Nb6Zr2B30. It is demonstrated that sample shape must be taken into account for a correct interpretation of the results, ...
Artículo
High-temperature evolution of coercivity in nanocrystalline alloys.
(American Physical Society, 2002)
The temperature evolution of the coercivity of a Finemet-type alloy, in which 10 at. % Fe has been substi- tuted by Cr and annealed at different temperatures, has been studied. In the temperature region ...
Artículo
The influence of Co addition on the magnetocaloric effect of Nanoperm-type amorphous alloys
(AIP Publishing, 2006-09-22)
The effect of Co addition on the magnetocaloric effect of amorphous alloys with Nanoperm-type composition has been studied for temperatures above room temperature. Co addition produces an increase in the maximum magnetic ...