Browsing División de Nanociencias y Materiales by Title
Now showing items 261-280 of 530
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Magnetic structure and magneto-volume anomalies in Er(2)Fe(17) compound
(2011)"Neutron powder diffraction shows that the intermetallic Er(2)Fe(17) compound with hexagonal crystal structure has a ferrimagnetic ground state (T(C) = 303 K). At T = 5 K the magnetic moments of Fe sublattice (mu similar ... -
Magnetic, thermal and magnetocaloric properties of Ni50Mn35In14.5B0.5 ribbons
(VBRI Press, 2017)"The structural, thermal, magnetic, and magnetocaloric properties of Ni50Mn35In14.5B0.5 melt-spun ribbons have been investigated using room-temperature x-ray diffraction (XRD), differential scanning calorimetry (DSC), and ... -
Magnetism of carbon nanostructures and in situ TEM dynamic transformations of carbon-based nanomaterials.
(2007)"Durante las últimas dos décadas se ha logrado sintetizar materiales de carbono con distintas formas estructurales y dimensiones en el orden de nanómetros, siendo los fullerenos y los nanotubos de carbono (NTC) dos ejemplos ... -
Magnetite nanoparticles as adsorbent material for Cu2+ ions from aqueous solution
(2018)"Cu2+ ions can cause serious injuries to human health, at both high and low concentrations. Therefore, it is important not only to remove Cu2+ ions from aqueous media, but also to develop analytical methods for their ... -
Magneto-caloric effect in the pseudo-binary intermetallic YPrFe17 compound
(Elsevier, 2011)"We have synthesized the intermetallic YPrFe17 compound by arc-melting. X-ray and neutron powder diffraction show that the crystal structure is rhombohedral with space group (Th2Zn17-type). The investigated compound ... -
Magnetocaloric effect in ErNi2 melt-spun ribbons
(Elsevier, 2019)"ErNi2 ribbons were produced by rapid solidification using the melt spinning technique. Their structural, magnetic and magnetocaloric properties in the as-solidified state were studied by X-ray diffraction, scanning electron ... -
Magnetocaloric effect in ErNi2 melt-spun ribbons
(Elsevier, 2020)"ErNi2 ribbons were produced by rapid solidification using the melt spinning technique. Their structural, magnetic and magnetocaloric properties in the as-solidified state were studied by X-ray diffraction, scanning electron ... -
Magnetocaloric effect in nanostructured Pr2Fe17 and Nd2Fe17 synthesized by high-energy ball-milling
(2010-11)"Nanocrystalline Pr2Fe17 and Nd2Fe17 powders with rhombohedral Th2Zn17-type crystal structure and average particle sizes around 20 nm have been obtained by high-energy ball milling While the bulk alloys show a well-defined ... -
Magnetocaloric effect in the low hysteresis Ni-Mn-In metamagnetic shape-memory Heusler alloy
(2014-05)"We have studied magnetocaloric properties of a Ni-Mn-In metamagnetic shape-memory alloy especially designed in order to display low thermal hysteresis. Magnetization and calorimetric measurements under a magnetic field ... -
Magnetocaloric properties of rapidly solidified Dy3Co alloy ribbons
(2015-05)"The magnetic and magnetocaloric (MC) properties of melt-spun ribbons of the Dy3Co intermetallic compound were investigated. Samples were fabricated in an Ar environment using a homemade melt spinner system at a linear ... -
Magnetostructural transition and magnetocaloric effect in MnNiGe1.05 melt-spun ribbons
(2014-05)"Alloy ribbons of nominal composition MnNiGe1.05 were produced using the melt-spinning technique. As-quenched (aq) polycrystalline ribbons are single-phase showing the hexagonal Ni2In-type crystal structure. After thermal ... -
Magnetostructural transitions and magnetocaloric effects in Ni50Mn35In14.25B0.75 ribbons
(American Institute of Physics, 2018)"The structural, thermal, and magnetic behaviors, as well as the martensitic phase transformation and related magnetocaloric response of Ni50Mn35In14.25B0.75 annealed ribbons have been investigated using room-temperature ... -
Magnetovolume and magnetocaloric effects in Er2Fe17
(2012-11)"Combining different experimental techniques, investigations in hexagonal P6(3)/mmc Er2Fe17 showremarkable magnetovolume anomalies below the Curie temperature, T-C. The spontaneous magnetostriction reaches 1.6 x 10(-2) at ... -
Material magnetocalorico basado en NdPrFe17 con propiedades mejoradas
(2015-09)"La presente invención está relacionada con un material magnetocalórico basado en cintas recién solidificadas de NdPrFe17 obtenidas por temple rotatorio. Este material tiene propiedades mejoradas en comparación con otros ... -
Materials and devices for organic electronics
(Hindawi Publishing Corporation, 2011) -
Matrix approach of an encryption system based on cellular automata and its numerical implementation
(2012)"The main components of an encryption system based on rule 90 cellular automata, i.e., two indexed families of permutations and a pseudorandom bit generator are implemented in a very xible way through a convenient matrix ... -
Mechanosynthesis of metastable cubic delta-Ta1-xN
(Elsevier, 2020)"The formation of the cubic ?-Ta1?xN phase by high-energy ball-milling from tantalum and boron nitride (h-BN) is explored. Two different molar ratios Ta:BN, 1:1 and 2:1, were used. X-ray diffraction, scanning electron ... -
Mejorando el desempeño electroquímico de supercapacitores biodegradables utilizando titanato de magnesio, ferrita de bario magnética y grafeno
(2021-07-15)"En este trabajo se llevó a cabo la construcción de supercapacitores (SCs) a base de electrodos fabricados a partir de fibra de coco reciclada y recubiertos con hojuelas de grafeno como agente conductor de corriente. También ... -
"Métodos supersimétricos en la física de medios materiales"
(11/07/2019)"En los capítulos 2 y 3 se propone una generalización al método uniparamétrico (γ-deformado) de factorización estrictamente isoespectral a un caso biparamétrico incluyendo un desplazamiento ε en los operadores de factorización ... -
Micro-scale systems and cellular automata: Spatio-Temporal Dynamics
(2009)"This work contains the results from the simulations performed according to two computational models. The first one referrs to a chemical system within a Continuosly tirred Tank Reactor (CSTR), while the second deals with ...