La realidad online en nuestros móviles u ordenadores se ha acabado. Simuladores, experiencias de adrenalina, aprendizaje, turismo, entrenamiento de cirujanos, porno, etc. todo esto y mucho más se traslada hoy en día poco a poco a un mundo completamente diferente. Se acerca la realidad virtual, la realidad aumentada y la realidad mixta. En...
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March 20, 2023 (v1)PublicationUploaded on: March 25, 2023
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November 27, 2014 (v1)Publication
Las investigaciones de ingenieros y científicos de materiales han estado continuamente dirigidas a mejorar las propiedades y el comportamiento de los materiales. Mejoras importantes de propiedades mecánicas, químicas, y físicas han sido alcanzadas por modificaciones químicas y por mejora de los métodos de tratamiento de los materiales. Sin...
Uploaded on: March 27, 2023 -
March 20, 2023 (v1)Publication
Este proyecto tiene dos objetivos principales. En el primer lugar, crear contenido en forma de vídeos didácticos cortos (como máximo de 3 minutos) y subirlo a la red social Tik Tok. Así, los estudiantes tendrán acceso a un material didáctico novedoso y muy cercano a sus hábitos cotidianos. Y, en el segundo lugar se ha elaborado una encuesta...
Uploaded on: March 25, 2023 -
June 8, 2022 (v1)Publication
Se realizó un ciclo de mejora en el aula en la asignatura obligatoria Química de los Materiales que se imparte en el Grado de Ingeniería Civil. La metodología llevada a cabo consiste en la incorporación de actividades de contraste en el bloque V (Propiedades de los materiales) del temario. Los resultados reflejan un desarrollo en el aprendizaje...
Uploaded on: March 25, 2023 -
March 20, 2023 (v1)Publication
OBJETIVOS Este trabajo presenta tres objetivos principales. En el primer lugar la creación de un material docente en forma de una página web (Urban, 2022) explicando la importancia de las mujeres en la ingeniería civil, principalmente en la primera mitad del siglo XX en diferentes lugares del mundo. El segundo objetivo era la búsqueda de datos...
Uploaded on: March 25, 2023 -
January 17, 2022 (v1)Publication
Se ha aplicado un método novedoso para aumentar la dureza de una aleación de aluminio y titanio partiendo de polvo amorfo obtenido mediante molienda mecánica de alta energía y posterior consolidación mediante sinterización por resistencia eléctrica. Los polvos amorfos de TiAl, fabricados mediante molienda mecánica durante 75 horas, mostraron...
Uploaded on: December 5, 2022 -
March 24, 2021 (v1)Publication
The effect of intensity and duration of the electrical resistance sintering process on the phase stability, porosity distribution and microstructural evolution of Al50Ti50 amorphous powders is studied. The phase transformations during the consolidation process were determined by X-ray diffraction. The porosity distribution was observed by...
Uploaded on: March 27, 2023 -
September 11, 2024 (v1)Publication
In this work, the obtaining of amorphized ferromagnetic particles by mechanical milling has been studied. For this purpose, the compositions Fe₇₈Si₂₂ and Fe₇₈Si₉B₁₃ have been studied and the results have been compared in order to determine the best characteristics achieved with this technique. The behavior has been studied when other elements...
Uploaded on: September 12, 2024 -
October 24, 2024 (v1)PublicationCharacteristics of Mechanically Alloyed Amorphized Ferromagnetic Particles of Fe₇₈Si₂₂ y Fe₇₈Si₉9B₁₃
In this work, the obtaining of amorphized ferromagnetic particles by mechanical milling has been studied. For this purpose, the compositions Fe₇₈Si₂₂ and Fe₇₈Si₉9B₁₃ have been studied and the results have been compared in order to determine the best characteristics achieved with this technique. The behavior has been studied when other elements...
Uploaded on: October 25, 2024 -
May 4, 2022 (v1)Publication
Se ha fabricado polvo amorfo de la aleación Al75Fe25 a partir del polvo elemental cristalino de aluminio puro y hierro puro. El proceso de fabricación del polvo amorfo se ha llevado a cabo mediante molienda mecánica con una duración de hasta 100 horas. El objetivo de este trabajo consiste en determinar la evolución de la compresibilidad y de la...
Uploaded on: March 25, 2023 -
March 13, 2023 (v1)Publication
This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were...
Uploaded on: March 25, 2023 -
January 15, 2024 (v1)Publication
The present work aims to produce TixCu100-x (x = 90, 80, 70, and 60) amorphous alloys by using high energy ball mill. The microstructure and possible formation of amorphous phases were characterized employing laser granulometry, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray diffraction (XRD). The...
Uploaded on: January 17, 2024 -
June 20, 2023 (v1)Publication
Capacitor electrical discharge consolidation (CEDC) is a technique that uses the heat of the Joule effect of a high intensity electric current to consolidate powders. In this study, the effect of the precompaction pressure and the number of discharges on the porosity, microstructure and hardness of the compacts is analysed. Furthermore, the...
Uploaded on: June 21, 2023 -
June 20, 2023 (v1)Publication
Ti-Cu alloys are used in dental and medical applications, due to their good mechanical properties, corrosion resistance and antibacterial properties. These properties are sensitive to microstructure and can be improved by formation of intermetallic compounds or amorphization of crystalline Ti-Cu powder. This study focuses on the amorphization...
Uploaded on: June 21, 2023 -
January 26, 2022 (v1)Publication
This research focused on studying the effect of temperature on the mechanical properties of aluminium matrix composites (AMCs) obtained by a powder metallurgy route. Aluminium powder was milled at room temperature for 5 h and using di erent atmospheres in order to achieve di erent amounts of reinforcement. The atmospheres employed were vacuum,...
Uploaded on: March 27, 2023 -
January 16, 2023 (v1)Publication
Medium-frequency electrical resistance sintering (MF-ERS) is a technique that uses the application of pressure and heat, heat coming from the Joule effect, simultaneously to metallic powders. In this study, this technique consolidates commercial iron powders, and the porosity distribution and hysteresis curves of the compacts were analysed....
Uploaded on: March 3, 2023 -
December 1, 2023 (v1)Publication
Método para la fabricación pulvimetalúrgica de núcleos magnéticos que se caracteriza porque comprende (i) una primera etapa de amorfización de una mezcla de polvos magnéticamente blandos mediante molienda mecánica; y (ii) una segunda etapa de consolidación eléctrica FAST (Field Assisted Sintering Techniques) del polvo amorfizado en la primera etapa.
Uploaded on: December 3, 2023 -
January 15, 2024 (v1)Publication
In this paper, electrical-discharge-consolidation (EDC technique) experiments were carried out with an equipment based on the technology developed for the stud welding technology. The main advantage of the EDC technique is its high speed, on the order of milliseconds or less, which makes it particularly interesting when a high final porosity is...
Uploaded on: January 17, 2024 -
October 23, 2024 (v1)Publication
In manufacturing processes using powder metallurgical methods, one of the most important and most expensive parts is consolidation and subsequent conventional sintering. Electrical discharge sintering (EDS) is a manufacturing process that converts the two steps of consolidation and conventional sintering into a single step. Additionally, the...
Uploaded on: October 24, 2024 -
September 3, 2019 (v1)Publication
En los últimos 10 años, las aleaciones cristalinas de Ti-Cu han sido estudiadas intensivamente por sus buenas propiedades mecánicas y protección contra corrosión. Una de las posibilidades para mejorar aún más estas propiedades es fabricar aleaciones de Ti-Cu amorfas. El objetivo del presente trabajo fue fabricar aleaciones amorfas Ti60 Cu40...
Uploaded on: March 25, 2023 -
January 29, 2018 (v1)Publication
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 enfriamiento muy severo, melt spinning) y su posterior apilado y/o plegado para la formación de la pieza final. El proceso...
Uploaded on: March 27, 2023 -
June 21, 2021 (v1)Publication
Porosity is a characteristic present in most sintered materials, full densification only being achieved in special cases. For some sintered materials, porosity is indeed a desired characteristic, serving for the intended application of the material. In any case, the porosity present in materials can have a strong effect on some of their...
Uploaded on: March 25, 2023 -
September 24, 2024 (v1)Publication
The technique of sintering by electrical discharge of capacitors (SEDC) is investigated, using a commercial stud welding equipment adapted to be used in the sintering of amorphous powders. In this technique, pressure and the heat generated by the Joule effect from the high intensity electric current are applied simultaneously to a mass of...
Uploaded on: September 25, 2024