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Mostrando ítems 61-70 de 294
Artículo
Polvos de Al-Al 3Ti obtenidos mediante aleado mecánico y tratamiento térmico
(2005)
Polvos mezclados de aluminio y titanio ( 10 % en peso) han sido aleados mecánicamente en un molino Attritor, obteniéndose una solución metaestable de titanio en la matriz de aluminio. Se han estudiado los cambios producidos ...
Artículo
A Track Geometry Measuring System Based on Multibody Kinematics, Inertial Sensors and Computer Vision
(MDPI, 2020-01)
This paper describes the kinematics used for the calculation of track geometric irregularities of a new Track Geometry Measuring System (TGMS) to be installed in railway vehicles. The TGMS includes a computer for data ...
Artículo
Limits of powder metallurgy to fabricate porous Ti35Nb7Zr5Ta samples for cortical bone replacements
(Elsevier, 2023-06)
The use of β-Titanium alloys to fabricate metal implants with Young's modulus that resembles bone tissues is presented as an alternative to commercially pure titanium or α-Titanium alloys, although it is still necessary ...
Artículo
Microstructural characterization and thermal stability of He charged amorphous silicon films prepared by magnetron sputtering in helium
(Elsevier, 2023-06)
Sputtering of silicon in a Helium magnetron discharge has been reported as a bottom-up procedure to obtain amorphous Si films containing high amounts of gas-filled nanopores. Here we compare the microstructure and composition ...
Artículo
Synthesis and characterization of manganese containing mesoporous bioactive glass nanoparticles for biomedical applications
(Springer, 2018-05)
Mesoporous bioactive glass (BG) nanoparticles based in the system: SiO2–P2O5–CaO–MnO were synthesized via a modified Stöber process at various concentrations of Mn (0–7 mol %). The synthesized manganese-doped BG nanoparticles ...
Artículo
Influence of processing parameters on the conduct of electrical resistance sintering of iron powders
(MDPI, 2020-04)
The influence of the applied pressure and electrical parameters on the macrostructure of specimens consolidated by the medium-frequency electrical resistance sintering technique (MF-ERS) is analysed in this work. This ...
Artículo
Production of Ultrafine Grained Hardmetals by Electrical Resistance Sintering
(MDPI, 2019-02)
In this work, powders of cemented ultrafine WC-6 wt.% Co were consolidated. The feasibility of the medium frequency electrical resistance sintering (MF-ERS) technique were studied to prevent WC grain growth during ...
Artículo
Modelling and Simulation of the Electrical Resistance Sintering Process of Iron Powders
(Korean Institute of Metals and Materials, 2020-07)
In this paper, the process known as Electrical Resistance Sintering under Pressure is modelled, simulated and validated. This consolidation technique consists of applying a high-intensity electrical current to a metallic ...
Artículo
Control of an Independent 4WD electric vehicle by DYC method
(Inderscience, 2015)
Current advances in the application of control systems to vehicle dynamics has made it practicable to improve the vehicle’s longitudinal, lateral and vertical dynamics. Some of the examples of application of these systems ...
Artículo
Green hydrogen production using doped Fe2O3 foams
(Elsevier, 2023)
Hydrogen is the ideal energy vector to reduce our fossil-fuels dependency and diminish the climate change consequence. However, current production is still methane based. It is possible to produce hydrogen using bioethanol ...