Buscar
Mostrando ítems 11-20 de 21
Ponencia
High temperature behavior of nanostructured Al powders obtained by mechanical alloying under NH3 flow
(American Institute of Physics Inc., 2015-03)
Aluminium powder was mechanically alloyed under ammonia gas flow for different times (1-5 h) in order to produce a second-phase reinforcement, mainly by aluminium nitride (AlN). After milling, powders were consolidated ...
Artículo
Amorphous Al-Ti Powders Prepared by Mechanical Alloying and Consolidated by Electrical Resistance Sintering
(MDPI, 2019-10)
A novel processing method for amorphous Al50Ti50 alloy, obtained by mechanical alloying and subsequently consolidated by electrical resistance sintering, has been investigated. The characterisation of the powders and the ...
Tesis Doctoral
Estudio de la amorfización y consolidación mediante sinterización por resistencia eléctrica de polvos metálicos
(2012-05-16)
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 ...
Artículo
Hard Metal Production by ERS: Processing Parameter Roles in Final Properties
(MDPI, 2019)
Cemented carbide is a hard composite material, used widely in a variety of industries. The value of the global tungsten carbide market is expected to grow by 4.4% (compound annual growth rate) from 2017 to 2022. One of the ...
Artículo
In Situ Synthesis of Al-Based MMCs Reinforced with AlN by Mechanical Alloying under NH3 Gas
(MDPI, 2018)
Aluminum matrix composites (AMCs) reinforced by aluminum nitride were prepared by mechanical alloying followed by a simple press and sintering method. Milling began under vacuum and after a period of between 1 and 4 h, ...
Artículo
Ceramic dies selection for electrical resistance sintering of metallic materials
(Elsevier, 2019)
Processing metallic powders by electrical resistance sintering requires the use of insulating ceramics dies. Selecting the appropriate ceramic material according to the electrical, thermal and mechanical properties is a ...
Artículo
Medium-frequency electrical resistance sintering of oxidized C.P. iron powder
(MDPI, 2018)
Commercially pure (C.P.) iron powders with a deliberate high degree of oxidation were consolidated by medium-frequency electrical resistance sintering (MF-ERS). This is a consolidation technique where pressure, and heat ...
Artículo
Low-Voltage Capacitor Electrical Discharge Consolidation of Iron Powder
(MDPI, 2022-09)
Commercially pure iron powder has been processed by the capacitor electrical discharge consolidation technique. This consolidation technique applies an external pressure and, at the same time, heats a metallic powder mass ...
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 ...
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, ...