Enviaments recents

  • Selective etching of injection molded zirconia-toughened alumina: Towards osseointegrated and antibacterial ceramic implants 

    Flamant, Quentin Jean Alain; Caravaca, Carlos; Meille, Sylvain; Gremillard, Laurent; Chevalier, Jerome; Biotteau Deheuvels, Katia; Kuntz, Meinhard; Chandrawati, Rona; Herrmann, Inge K.; Spicer, Christopher D.; Stevens, Molly M.; Anglada Gomila, Marcos Juan (2016-12-01)
    Article
    Accés obert
    Due to their outstanding mechanical properties and excellent biocompatibility, zirconia-toughened alumina (ZTA) ceramics have become the gold standard in orthopedics for the fabrication of ceramic bearing components over ...
  • Surface microstructural changes of spark plasma sintered zirconia after grinding and annealing 

    Melk, Latifa; Mouzon, Johanne; Turón Viñas, Miquel; Akhtar, Farid; Antti, Marta-lena; Anglada Gomila, Marcos Juan (2016-11-01)
    Article
    Accés restringit per política de l'editorial
    Spark plasma sintered zirconia (3Y-TZP) specimens have been produced of 140 nm 372 nm and 753 nm grain sizes by sintering at 1250 °C, 1450 °C and 1600 °C, respectively. The sintered zirconia specimens were grinded using a ...
  • High-field paramagnetic Meissner effect up to 14 T in melt-textured YBa2Cu3O7-delta 

    Teixeira Dias, Fábio; Vieira, Valdemar das Neves; Wolff-Fabris, Frederik; Kampert, Erik; Paiva Gouvêa, Cristol de; Campos, A.P.C.; Archanjo, B.S.; Schaf, Jacob; Obradors Berenguer, Xavier; Puig, T.; Roa Rovira, Joan Josep; Sahoo, B.K. (2016-06-01)
    Article
    Accés restringit per política de l'editorial
    We have performed magnetization experiments in a melt-textured YBa2Cu3O7-delta(Y123) sample with Y2BaCuO5 (Y211) inclusions, under magnetic fields up to 14 T applied parallel or perpendicular to the ab plane. Magnetic ...
  • On the influence of creativity in basic programming learning at a first-year Engineering course 

    Pérez Poch, Antoni; Olmedo Torre, Noelia; Sánchez Carracedo, Fermín; Salán Ballesteros, Maria Núria; López Álvarez, David (Tempus Publications, 2016-10)
    Article
    Accés obert
    Teaching fundamentals of programming is a complex task that involves the students’ acquisition of diverse knowledge and skills. It is also well known that programming often requires a certain degree of creativity. There ...
  • Functional behaviour of the anomalous magnetic relaxation observed in melt-textured YBCO samples showing the paramagnetic Meissner effect 

    Teixeira Dias, Fábio; Vieira, Valdemar das Neves; Garcia, E.L.; Wolff-Fabris, Frederik; Kampert, Erik; Paiva Gouvêa, Cristol de; Schaf, Jacob; Obradors Berenguer, Xavier; Puig, Teresa; Roa Rovira, Joan Josep (2016)
    Article
    Accés restringit per política de l'editorial
    We have studied the functional behavior of the field-cooled (FC) magnetic relaxation observed in melt- textured YBa 2 Cu 3 O 7- d(Y123) samples with 30 wt% of Y 2 Ba 1 Cu 1 O 5 (Y211) phase, in order to investigate anomalous ...
  • The effects of bimodal grain size distributions on the work hardening behavior of a TRansformation-TWinning induced plasticity steel 

    Eskandari Sabzi, H.; Zarei Hanzaki, A; Abedi, H. R.; Soltani, R.; Mateo García, Antonio Manuel; Roa Rovira, Joan Josep (2016-12-15)
    Article
    Accés restringit per política de l'editorial
    The effects of bimodal grain size distributions on the mechanical properties of a newly developed TRansformation-TWinning induced plasticity (TRIP/TWIP) steel were investigated. The microstructures with different levels ...
  • Mechanical properties of Al2O3 inverse opals by means of nanoindentation 

    Roa Rovira, Joan Josep; Coll Valentí, Arnau; Bermejo, Sandra; Jiménez Piqué, Emilio; Alcubilla González, Ramón; Castañer Muñoz, Luis María; Llanes Pitarch, Luis Miguel (2016)
    Article
    Accés restringit per política de l'editorial
    In order to understand the mechanical behaviour of Al2O3 inverse opals, nanoindentation techniques have been implemented in material layers with three different microstructures, in terms of hollow or polystyrene spheres, ...
  • Substrate surface finish effects on scratch resistance and failure mechanisms of TiN-coated hardmetals 

    Yang, Jing; Roa Rovira, Joan Josep; Oden, M; Johansson Joesaar, M.P; Esteve, Joan; Llanes Pitarch, Luis Miguel (Elsevier, 2015-03-15)
    Article
    Accés restringit per política de l'editorial
    In this study, the influence of substrate surface finish on scratch resistance and associated failure mechanisms is investigated in the case of a TiN-coated hardmetal. Three different surface finish conditions are studied: ...
  • Fracture toughness of cemented carbides: Testing method and microstructural effects 

    Sheikh, Saad; M'Saoubi, Rachid; Flasar, Petr; Schwind, Martin; Persson, Tomas; Yang, Jing; Llanes Pitarch, Luis Miguel (2015-03-01)
    Article
    Accés restringit per política de l'editorial
    Fracture toughness is one the most important parameters for design applications and performance assessment of WC-Co cemented carbides (hardmetals). Different from hardness, fracture toughness is commonly a property more ...
  • Fracture and fatigue behavior of WC-Co and WC-CoNi cemented carbides 

    Tarragó Cifre, Jose María; Roa Rovira, Joan Josep; Valle, Vladimir; Marsahll, J. M.; Llanes Pitarch, Luis Miguel (2015-03-01)
    Article
    Accés restringit per política de l'editorial
    The fracture and fatigue characteristics of several cemented carbide grades are investigated as a function of their microstructure. In doing so, the influence of binder chemical nature and content (Co and 76 wt.% Co-24 ...

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