Browsing División de Nanociencias y Materiales by Title
Now showing items 271-290 of 535
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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 ... -
Micromagnetismo en nanoestructuras de metales de transición con diferentes geometrías: circulas, triangular y triangular de Reuleaux.
(2006)"En este trabajo de tesis presentamos los resultados obtenidos mediante simulación micromagnética, usando el código Oriented Micro Magnetic Framework; en diferentes sistemas ferromágneticos. En primer lugar presentamos el ... -
Microstructure and composition design of magnetic Ni-Mn-Sn Co-sputter deposited films
(2015)"In this work, we study the effect of the substrate temperature (ST) during sputter-deposition as well as co-sputtering deposition on the fabrication of nanostructured Ni-Mn-Sn thin films. Sputtered films show Mn losses ... -
Microstructure and magnetocaloric effect of melt-spun Ni52Mn26Ga22 ribbon
(2012-04)"Microstructural features and magnetocaloric properties of Ni52Mn26Ga22 melt-spun ribbons were studied. Results show that there are four types of differently oriented variants of seven-layered modulated (7M) martensite at ... -
Modeling and optimization of a photocatalytic process: degradation of endocrine disruptor compounds by Ag/ZnO
(Elsevier, 2017)"Artificial neural network (ANN) modeling was applied to study the photocatalytic degradation of bisphenol-A. The operating conditions of the Ag/ZnO photocatalyst synthesis and its performance were simultaneously modeled ... -
Modelling adsorption isotherms of binary mixtures of carbon dioxide, methane and nitrogen
(2011)"A molecular-based approach for modelling mixtures adsorbed onto solid surfaces using the Statistical Associating Fluid Theory for Potentials of Variable Range (SAFT-VR) for three- and two-dimensional systems is presented ... -
Modificación de poliolefinas con poliésteres alifáticos para obtener compositos para aplicaciones biomédicas
(2022-03-21)"Compositos poliméricos a base de polietilenos, como el polietileno de alta densidad (HDPE) y el polietileno de ultra alto peso molecular (UHMWPE) y policaprolactona (PCL) con un relleno cerámico de bioglass (BG) e ... -
Modificación y evaluación de polímeros semiconductores para su potencial uso en dispositivos fotovoltaicos
(2019-11-15)"Actualmente las celdas perovskitas de vanguardia presentan una configuración convencional tipo n-i-p que consisten en óxido de titanio (TiO2), semiconductor tipo n, cubierto por la perovskita y una capa transportadora de ... -
Modification of porous nickel electrodes with silver nanoparticles for hydrogen production
(Elsevier, 2018)"Silver nanoparticles were electrodeposited into the surface of a macroporous Ni electrode. The developed electrodes were characterized morphologically by confocal laser scanning microscopy and field emission scanning ...