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Ponencia
Use of Urea and Ammonia to Produce High-Strength PM Aluminium Parts
(European Powder Metallurgy Association (EPMA), 2011)
Two methods to obtain bulk nanostructured aluminium parts are compared. The first one consists on milling Al powder in an ammonia gas atmosphere. In the second method, the Al powder is milled in vacuum with the addition ...
Artículo
Fracture toughness of cemented carbides obtained by electrical resistance sintering
(Elsevier, 2019)
The unique combination of hardness, toughness and wear resistance exhibited by WC-Co cemented carbides (hardmetals) has made them a preeminent material choice for extremely demanding applications, such as metal cutting/forming ...
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
Influence of Milling Atmosphere on the Controlled Formation of Ultrafine Dispersoids in Al-Based MMCs
(MDPI, 2016)
Properties of compacts made from aluminium powder, milled under different atmospheres, were evaluated. The duration of all the milling processes was 10 h, although different atmospheres were tested: vacuum, confined ...
Artículo
Nickel Porous Compacts Obtained by Medium-Frequency Electrical Resistance Sintering
(MDPI, 2020-05)
A commercially pure (c.p.) nickel powder was consolidated by Medium-Frequency Electrical Resistance Sintering (MF-ERS). In this consolidation technique, a pressure and the heat released by a high-intensity and low-voltage ...
Artículo
Influence of Temperature on Mechanical Properties of AMCs
(MDPI, 2020-06)
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 ...
Artículo
Nanocrystalline Al Composites from Powder Milled under Ammonia Gas Flow
(Hindawi Publishing Corporation, 2014)
The production of high hardness and thermally stable nanocrystalline aluminium composites is described. Al powder was milled at room temperature in an ammonia flow for a period of less than 5 h. NH3 dissociation during ...
Tesis Doctoral
MMCS de aluminio nanoestructurado obtenidos mediante molienda en flujo de amoniaco gaseoso.
(2014-02-20)
Es un hecho que la nanotecnología y, en general, los procesos relacionados con nanoestructuras, puede aportar soluciones novedosas en muy diversas aplicaciones de la actividad humana. De ahí el interés de la investigación ...
Patente
Método para la fabricación pulvimetalúrgica de imanes
(Oficina Española de Patentes y Marcas , 2015-08-20)
La presente patente tiene por objeto presentar un nuevo método para la fabricación pulvimetalúrgica de imanes (aplicable especialmente a la fabricación de imanes que contienen tierras raras). Lo novedoso del método reside ...