Enviaments recents

  • Effect of the filler on the nanomechanical properties of polypropylene in contact with paraffinic phase change material 

    Giró Paloma, Jessica; Rayón Encinas, Emilio; Roa Rovira, Joan Josep; Martínez López, Monica; Fernández Renna, Ana Inés (2015-02)
    Article
    Accés obert
    As the changes on the mechanical properties with depth of indentation provide valuable information that may be suitable for design purposes, nanoindentation is an adequate technique for investigating the nanomechanical ...
  • Annealing aged zirconia: study of surface mechanical properties at the micrometric length scale 

    Roa Rovira, Joan Josep; Anglada Gomila, Marcos Juan (Elsevier, 2015-03-01)
    Article
    Accés obert
    The annealing of hydrothermal aged zirconia has been studied by analysing the changes in microstructure and surface mechanical properties in terms of the annealing temperature. In this experimental work, a systematic micro- ...
  • Chemical milling effect on the low cycle fatigue properties of cast Ti-6Al-2Sn-4Zr-2Mo alloy 

    Sefer, Birhan; Gaddam, Raghuveer; Roa Rovira, Joan Josep; Mateo García, Antonio Manuel; Antti, Marta-lena; Pederson, Robert (2016-11-01)
    Article
    Accés obert
    The current research work presents the chemical milling effect on the low cycle fatigue properties of cast Ti–6Al–2Sn–4Zr–2Mo alloy. Chemical milling treatment is one of the final steps in manufacturing titanium alloy ...
  • Disclosure day on relativity: a science activity beyond the classroom 

    Aragoneses, Andrés; Salán Ballesteros, Maria Núria; Hernández Fernández, Antonio (2017-04)
    Article
    Accés obert
    An important goal for students in engineering education is the ability to present and defend a project in front of a technical audience. We have designed an activity for helping students to work the independent learning ...
  • Focused ion beam tomography of WC-Co cemented carbides 

    Jiménez Piqué, Emilio; Turón Viñas, Miquel; Chen, H.; Todorov Trifonov, Trifon; Fair, Jonathan; Tarrés, E.; Llanes, Angels (2017-09-01)
    Article
    Accés obert
    The microstructure of three different grades of WC-Co cemented carbides (hardmetals) has been reconstructed in three dimensions after sequential images obtained by focused ion beam. The three dimensional microstructual ...
  • Mechanical strength of ground WC-Co cemented carbides after coating deposition 

    Yang, Jing; Oden, M; Johansson-Jõesaar, M.P.; Esteve Pujol, Joan; Llanes Pitarch, Luis Miguel (2017-03-24)
    Article
    Accés obert
    Manufacturing of hardmetal tools often involves surface grinding, ion etching and final coating. Each stage throughout the manufacturing chain introduces surface integrity changes which may be critical for defining the ...
  • Using concept maps to assess the "oral communication" competence within the "Materials for Energy Applications " course 

    Roa Rovira, Joan Josep; Gallardo Gallardo, Eva; Martínez Martínez, María del Rosario; Llanes Pitarch, Luis Miguel (Sociedad Española de Materiales, 2017)
    Article
    Accés obert
    Technical skills, even for technical positions, are insufficient for subsequent success beyond an entry-level position, since it usually requires proficiency in soft-skills areas such as: communication, leadership, conflict ...
  • Chemical milling of cast Ti-6Al-4V and Ti-6Al-2Sn-4Zr-2Mo alloys in hydrofluoric-nitric acid solutions 

    Sefer, Birhan; Dobryden, Illia; Almqvist, Nils; Pederson, Robert; Antti, Marta-lena (2017-04-01)
    Article
    Accés restringit per política de l'editorial
    The behavior of cast Ti-6Al-4V and Ti-6Al-2Sn-4Zr-2Mo during chemical milling in hydrofluoric-nitric (HF-HNO3) acid solutions with 1:3 and 1:11 molar ratios was investigated using electrochemical and atomic force microscopy ...
  • Characterization of interfaces between TiCN and iron-base binders 

    Alvaredo, P; Roa Rovira, Joan Josep; Jiménez Piqué, Emilio; Llanes Pitarch, Luis Miguel; Gordo, E (2017-02-01)
    Article
    Accés obert
    This work includes a study of the interface between matrix and reinforcement in Fe-Ti(C,N) systems. A study of wettability and solubility between metal and ceramic phases is first performed. It combines wetting experiments ...
  • Surface topography quantification of super hard abrasive tools by laser scanning microscopy 

    Fang, Shiqi; Llanes Pitarch, Luis Miguel; Engstler, M.; Baehre, D.; Soldera, Flavio; Muecklich, F. (2016)
    Article
    Accés obert
    Non-conventional super hard abrasive tools are made of composite materials containing super hard grains, e.g., diamond or cubic boron nitride (CBN) grains, bound by a metallic constitutive phase. These tools are usually ...

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