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Mostrando ítems 391-400 de 441
Artículo
Chemical and structural investigations of the interactions of Cu with MnSiO3 diffusion barrier layers
(American Institute of Physics, 2012-09)
X-ray photoelectron spectroscopy (XPS) has been used to investigate the thermodynamic stability of Cu layers deposited onto Mn silicate (MnSiO3) barrier layers formed on SiO2 surfaces. Using a fully in situ growth and ...
Artículo
Effect of graphene nanoplatelets thickness on strain sensitivity of nanocomposites: A deeper theoretical to experimental analysis
(Elsevier, 2019-09)
Conductive epoxy nanocomposites were prepared using two different thickness graphene nanoplatelets (GNPs) as reinforcement, H25 and M25. In both cases, 3 and 5 wt % GNPs was dispersed into the matrix by means of sonication ...
Libro
Scientific Advances in STEM: From Professor to Students
(MDPI, 2021-09)
Universities should generate and relay knowledge and, therefore, placing it at the service of society. In this context, the Higher Polytechnic School (Escuela Polit´ecnica Superior, EPS) of the University of Seville (US), ...
Ponencia
Fabricación y caracterización de núcleos magnéticos de aleaciones amorfas mediante ruta pulvimetalúrgica simple y económica
(Área de Innovación y Desarrollo, 2016)
La fabricación de núcleos amorfos (tanto para motores eléctricos, como transformadores) es una tarea compleja que hasta ahora ha requerido la fabricación del material amorfo en forma de cintas de fino espesor (mediante ...
Ponencia
El Técnico de Prevención (Nivel Superior) ¿profesión regulada? ¿grado o posgrado?
(2014)
Con la entrada en vigor del Real Decreto 39/1997, por el que se aprueba el Reglamento de los Servicios de Prevención podría decirse que irrumpió con fuerza en el mercado laboral una nueva profesión, denominada de técnico ...
Capítulo de Libro
In Situ Titanium Composites: XRD Study of Secondary Phases Tied to the Processing Conditions and Starting Materials
(IntechOpen, 2019)
Nowadays, the development of high specific modulus materials involves studies of new materials and novel manufacturing routes. From the point of view of composite materials, titanium composites (TMCs) have been long ...
Artículo
Thermal and tribo-mechanical properties of high-performance poly (etheretherketone)/reduced graphene oxide nanocomposite coatings prepared by electrophoretic deposition
(Springer, 2023-06)
The thermal stability and degradation, near-to-surface mechanical properties, and scratch resistance and damage mechanism of poly(etheretherketone) (PEEK)/reduced graphene oxide (RGO) nanocomposite coatings are analyzed ...
Artículo
Evaluation of sensitivity for detecting different failure modes of epoxy matrix composites doped with graphene nanoparticles
(Elsevier, 2019-10)
In recent years, the interest in monitoring the damage of composite materials by measuring the variation of electrical resistance is increasing because deformations and cracks generated in the structure produce changes in ...
Capítulo de Libro
Diseño, fabricación y ensayo de materiales laminados basados en el metal duro con propiedades mecánicas mejoradas
(3ciencias, 2020-04)
Los metales duros (WC-Co) y cermets son materiales muy usados como materiales de herramientas. Sin embargo, los WC-Co presentan pérdidas de propiedades mecánicas a temperaturas elevadas, mientras que la fragilidad elevada ...
Artículo
A Method to Determine the Electrical Resistance of a Metallic Powder Mass under Compression
(MDPI, 2017-11-06)
In this paper, a phenomenological model to predict the value of the electrical resistance of a compressed metal powder mass is proposed. The model, based on the experimental compressibility and resistivity-porosity curves, ...