Browsing by Subject "Metalls"
Now showing items 1-20 of 87
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3D FIB/FESEM tomography of grinding-induced damage in WC-Co cemented carbides
(Elsevier, 2020)
Article
Open AccessWC-Co cemented carbides (hardmetals) represent the backbone materials for the tooling industry. In order to achieve particular tool geometries, diamond wheel grinding is a well-established method for machining hardmetals. ... -
3D-printed porous Ti6Al4V alloys with silver coating combine osteocompatibility and antimicrobial properties
(Elsevier, 2021-12-29)
Article
Open AccessAdditive manufacturing allows for the production of porous metallic implants for use in orthopaedics, providing excellent mechanical stability and osseointegration. However, the increased surface area of such porous implants ... -
A fuzzy approach for the selection of non-traditional sheet metal cutting processes
(2015-09)
Article
Restricted access - publisher's policyThis work presents a methodology for the selection and comparison of non-traditional sheet metal cutting processes as a new structure of selection by means of an expert system. The model is generated from a knowledge base ... -
Acoblaments compòsit-compòsit i compòsit-metall
(Universitat Politècnica de Catalunya, 2022-07-05)
Bachelor thesis
Open AccessEn aquesta memòria es recull un estudi bibliogràfic dels mètodes emprats en acoblaments compòsitcompòsit i compòsit-metall, excloent-ne els adhesius. S’ha recapitulat els mètodes més habituals en una cartografia visual i ... -
Analysis of printing parameters for metal additive manufactured parts through Direct Ink Writing process
(2020-03-09)
Article
Open AccessDirect Ink Writing is an Additive Manufacturing process in which a metal ink is continuously extruded to built-up a green metal part. Therefore, a debinding and sintering process is required to obtain the final metal part. ... -
Análisis y ajuste de las variables de proceso para la fabricación de polvos de aleaciones base estaño mediante un atomizador centrífugo
(Universitat Politècnica de Catalunya, 2017-06)
Bachelor thesis
Restricted access - author's decisionEn el presente proyecto se ha realizado la puesta a punto de un prototipo para la atomización de polvo metálico mediante la técnica de atomización centrífuga, incluyendo los diferentes componentes que intervienen en el ... -
Application of mechanically alloyed MnAl particles to de-colorization of azo dyes
(2018-04-15)
Article
Open AccessThe use of metallic particles has been shown to be an effective, low-cost method for degradation of many contaminating compounds. In this work, we analyze the efficiency of MnAl metallic powders for degrading azo dyes, ... -
Caracterització electroquímica d'aliatges "High-Entropy"
(Universitat Politècnica de Catalunya, 2020-10-22)
Bachelor thesis
Open AccessEn aquest treball s’han produït una sèrie de composicions d’uns aliatges anomenats high-entropy metallic glasses. Aquest tipus d’aliatges són una combinació d’aliatges high-entropy, creats a partir de la fusió a alta ... -
Caracterizacion térmica de hueso y substratos metálicos para uso biomédico
(Sociedad Ibérica de Biomecánica y Biomateriales, 2000-12)
Article
Open AccessEn este trabajo reportamos mediciones de difusividad térmica a temperatura ambiente en dos diferentes cortes de hueso denso de res, hueso de res en polvo e hidroxiapatita comercial en polvo. Realizamos una comparación ... -
Caracterización mecánica y microestructural de superficies de metal duro con implantación iónica
(Universitat Politècnica de Catalunya, 2021-10-18)
Master thesis
Open AccessEl metal duro es un material compuesto por cerámica-metal (cermet). Consiste en carburo de tungsteno (WC) en una matriz de cobalto. Es un material altamente utilizado en la industria por sus propiedades mecánicas: es un ... -
Caracterización y tratamiento de suelos contaminados por actividades mineras mediante materiales reactivos
(2010)
Conference lecture
Restricted access - publisher's policyEn áreas mineras abandonadas, como en la antigua cuenca minera de Anglés (Girona), existen diversas zonas afectadas por la minería del Pb, habiéndose producido la contaminación de los suelos y aguas subterráneas, a causa ... -
Catalytic transformation of biomass-derived 5-hydroxymethylfurfural over supported bimetallic iridium-based catalysts
(American Chemical Society (ACS), 2021-04-28)
Article
Open Access5-Hydroxymethylfurfural (HMF) is a biobased platform chemical that can be valorized into a spectrum of valuable products. In this report, supported Ir, Ir–Co, Ir–Ni, and Ir–Ru catalysts were investigated for this purpose. ... -
Change of the k-factor of printed sensors after multiaxial load
(Universitat Politècnica de Catalunya, 2017-08-31)
Bachelor thesis
Open AccessIn this thesis, the analysis of the variation of the k-factor after multiaxial loads in a uniaxial tensile test is done. For the performance of this project, the characterization of the DC04 steel is made, analyzing the ... -
Characterization of bimetallic interface in Cu-Al and Ni-Cu rods cold-welded by ECAP
(2019-11-23)
Article
Open AccessWhile cold welding by equal channel angular pressing has already been confirmed to be a viable alternative to join materials that commonly tend to exhibit unwanted brittleness and other heat-induced properties, the exact ... -
Combinatorial investigation of Al–Cu intermetallics using small-scale mechanical testing
(2020-05-05)
Article
Open AccessIn the past two decades, small-scale mechanical testing has become ubiquitous for mechanical measurements, offering new opportunities to quantitatively probe the mechanical behavior of materials. In this study, we applied ... -
Contact damage investigation of CVD carbonitride hard coatings deposited on cemented carbides
(2020-01-01)
Article
Open AccessThe evolution of damage induced as contact load is increased has been investigated on single- and multilayered coated cemented carbides by means of spherical indentation. The main objective of the study was to assess the ... -
Contingut en metalls de hortícoles als que s'ha daplicat residus orgàncis en diferents dosis
(2000)
Conference lecture
Open Access -
Continuous chip formation in metal cutting processes using the Particle Finite Element Method (PFEM)
(2017-08-01)
Article
Open AccessThis paper presents a study on the metal cutting simulation with a particular numerical technique, the Particle Finite Element Method (PFEM) with a new modified time integration algorithm and incorporating a contact algorithm ... -
Corrosion-induced changes on Hertzian contact damage in cemented carbides
(2020-11-01)
Article
Open AccessIn this study, the influence of corrosion on the mechanical response and damage induced under Hertzian indentation is assessed for three cemented carbides with metallic binders of different chemical nature. Corrosion ... -
Derivation of the coefficients in the Coulomb constant shear friction law from experimental data on the extrusion of a material into V-shaped channels with different convergence angles: new method and algorithm
(Multidisciplinary Digital Publishing Institute (MDPI), 2022-01-27)
Article
Open AccessFriction plays an important role in metal-forming processes by pressure and largely controls material flow wear, adversely affecting the wear resistance of dies employed to form metals. Therefore, the combined Coulomb ...
