Browsing División de Nanociencias y Materiales by Title
Now showing items 61-80 of 528
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Characterization of the kinetic arrest of martensitic transformation in Ni45Co5Mn36.8In13.2 melt-spun ribbons
(Elsevier, 2018)"The kinetic arrest (KA) of martensitic transformation (MT) observed in Ni45Co5Mn36.8In13.2 melt-spun ribbons has been studied. These alloy ribbons show an ordered columnar-like grain microstructure with the longer grain ... -
Chemical stability of superhard rhenium diboride at oxygen and moisture ambient environmental conditions prepared by mechanical milling
(The American Ceramic Society, 2018)"In this study, rhenium diboride (ReB2) was obtained by mechanosynthesis at 640 minutes of milling. The obtained ReB2 was stored at oxygen and moisture ambient environmental conditions to know the chemical stability. The ... -
Classical harmonic oscillator with Dirac-like parameters and possible applications
(2004)"We obtain a class of parametric oscillation modes that we call K-modes with damping and absorption that are connected to the classical harmonic oscillator modes through the “supersymmetric” one-dimensional matrix procedure ... -
Cobalt double-ring and double-dot structures: Magnetic properties
(2016)"The magnetization reversal mechanism of nanostructures of cobalt double-rings (D-rings) and double-dots (D-dots) is investigated in the framework of micromagnetic simulations. The arrays contain two identical coupled rings ... -
Coexistence of two-photon absorption and saturable absorption in ion-implanted platinum nanoparticles in silica plates
(Optical Society of America, 2018)"Platinum nanoparticles were nucleated in a high-purity silica matrix by an ion-implantation method. The third-order nonlinear optical response of the samples was studied using femtosecond pulses at 800 nm with the z-scan ... -
Comment on demystifying the constancy of the Ermakov-Lewis invariant for a time-dependent oscillator
(World Scientific Publishing Company, 2018)"We show that a simple modification of the Lagrangian proposed by Padmanabhan in the paper [Mod. Phys. Lett. A33, 1830005 (2018)] leads to the most general dynamical invariant in [Ray and Reid, Phys. Lett. A71, 317 (1979)]." -
Comparison of two synthesis methods on the preparation of Fe, N-Co-doped TiO2 materials for degradation of pharmaceutical compounds under visible light
(Elsevier, 2017)"In this work, we report the synthesis, characterization and photocatalytic evaluation of visible light active iron-nitrogen co-doped titanium dioxide (Fe3+-TiO2?xNx) nanostructured catalyst. Fe3+-TiO2?xNx was synthesized ... -
Competing magnetic structures and magnetic transitions in Er(2)Ni(2)Pb: powder neutron diffraction measurements
(2008-07)"We have studied the magnetic structures of Er(2)Ni(2)Pb using a powder neutron diffraction technique in zero field. Previous bulk measurements suggested three distinct magnetic phase transitions. Our neutron diffraction ... -
Complex refractive index of InXGa1-XN thin films grown on cubic (100) GaN/MgO
(Elsevier, 2017)"Spectroscopic ellipsometry measurements of InXGa1-XN thin films were carried out in the photon energy range from 0.6 to 4.75 eV. The samples were grown on cubic GaN/MgO (100) template substrates by plasma assisted molecular ... -
Compositos poliméricos de Poli (ácido acrílico) con hidróxido férrico para el tratamiento de efluentes contaminados con arsénico
(2018-08)"Durante los últimos años la demanda de agua potable ha aumentado y las fuentes de agua han mostrado señales de contaminación, por diversas sustancias de distintos orígenes y con diferentes grados de toxicidad. Entre los ... -
“Compósito de SiO2/Quitosano” prospecto para uso como excipiente avanzado para la administración de fármacos por vía oral
(2020-11-17)"La ciencia de los materiales continúa estudiando y generando una nueva generación de excipientes, denominados excipientes avanzados. Estos, están diseñados como soportes activos de los fármacos y ayudan a aumentar su ... -
Compósitos a base de grafeno oxidado: propiedades adsortivas y catalíticas
(2015-02)"En el presente trabajo de investigación se sintetizaron compósitos a base de óxido de grafeno empleando procesos hidrotérmicos asistidos por microondas (HTAM). Inicialmente, se sintetizó óxido de grafeno reducido (RGO) a ... -
Compósitos de partículas magnéticas y el elastómero polidimetil-siloxano: propiedades magnéticas y aplicaciones
(2017)"En este trabajo se ha propuesto y estudiado el proceso de fabricación de micropartículas compósitas a base del elastómero polidimetil-siloxano (PDMS) y partículas magnéticas nano y microscópicas con el fin de obtener ... -
Compressibility, microcalorimetry, elastic properties and EELS of rhenium borides
(Elsevier, 2018)"Based on synchrotron X-ray diffraction on phase-pure samples, we revised the bulk moduli of the rhenium borides Re7B3 (B-0 (Re7B3) = 391(5) GPa) and orthorhombic Re3B (B-0 (orthorhombic Re3B) = 393(4) GPa) and determined ... -
Concreto reforzado con nanotubos de carbono dopados con oxígeno y dopados con nitrógeno
(2015-05)"En éste trabajo se describen los efectos de la incorporación de nanotubos de carbono multipared en mezclas de morteros hidráulicos basados en cemento gris tipo Portland. Los nanotubos de carbono fabricados presentan ... -
Construction of 3D self-supported electrodes of amorphous Ni(OH)2 with rationally nanostructued architecture for supercapacitor applications
(2019-11-11)"Amorphous Ni(OH)2 coating on nanostructured nickel scaffolds with rational archietcture have been successfully fabricated by a facile process of templated-directed electrodeppsition and surface oxidation treatment. ... -
Control of the asymmetric growth of nanowire arrays with gradient profiles
(Royal Society of Chemistry, 2021)"A novel electrochemical methodology for the growth of arrays of Ni and Co nanowires (NWs) with linear and non-linear varying micro-height gradient profiles (?HGPs), has been developed. The growth mechanism of these ... -
Controllable biosynthesis of small silver nanoparticles using fungal extract
(2016-04)"The search for reliable and eco-friendly methods for the production of nanoscale materials is an important aspect of nanotechnology. Silver nanoparticles (AgNPs) are of special interest because of their antimicrobial ... -
Controlled growth of one-dimensional clusters of molybdenum atoms using double-walled carbon nanotube templating
(2009)"We report the controlled growth of one-dimensional clusters of molybdenum atoms inside the inner cores of double-walled carbon nanotubes. A combined characterization including high resolution transmission electron microscopy, ... -
Controlling chemical and physical properties of ordered carbon nanosystems
(2010-08)"Nanoscience and nanotechnology are dedicated to the creation of new materials with interesting properties like hardness, conductivity, magnetic properties, among others. Now, there is also interest in the use of these ...