Now showing items 1-20 of 28

  • Chemical segregation in a 12Ce-ZrO2/3Y-ZrO2 ceramic composite 

    Roa Rovira, Joan Josep; Aboulfadl, Hisham; Barrirero, Jenifer; Turón Viñas, Miquel; Mücklich, Frank; Anglada Gomila, Marcos Juan (2017-10-01)
    Article
    Restricted access - publisher's policy
    In restorative dentistry, 3Y-ZrO2 ceramics are widely accepted for fabricating dental crowns, bridges and implants due to their good biocompatibility, excellent mechanical properties and high aesthetics potential. However, ...
  • Correlation between electrical and mechanical properties in La1-xSrxGa1-yMgyO3-d ceramics used as electrolytes for solid oxide fuel cells 

    Morales Comas, Miguel; Roa Rovira, Joan Josep; Pérez Falcón, José Manuel; Moure Arroyo, Alberto; Tartaj, Jesus; Espiell Álvarez, Ferran; Segarra Rubi, Merce (2014)
    Article
    Restricted access - publisher's policy
    The relation between the electrical and the mechanical properties in Sr and Mg doped LaGaO3 ceramics, which can be used as electrolyte for solid oxide fuel cells, was investigated in terms of hardness and ionic conductivity. ...
  • Design of calcium phosphate scaffolds with controlled simvastatin release by plasma polymerisation 

    Canal Barnils, Cristina; Khurana, Kanupriya; Gallinetti, Sara; Bhatt, Sudhir; Pulpytel, Jerome; Arefi Khonsari, Farzaneh; Ginebra Molins, Maria Pau (Elsevier, 2016-06-01)
    Article
    Open Access
    Covenantee:  Université Pierre et Marie Curie / Universitat Autònoma de Barcelona
    Calcium Phosphates (CaPs) have excellent bone regeneration capacity, and their combination with specific drugs is of interest because it allows adding new functionalities. In CaPs, drug release is mainly driven by diffusion, ...
  • Dielectric and piezoelectric nonlinear properties of slightly textured lead barium niobate ceramics 

    Ochoa Guerrero, Diego A.; Casals Mirones, Jorge Alejandro; Venet, Michel; M'Peko, Jean-Claude; García García, José Eduardo (American Institute of Physics (AIP), 2019-01-09)
    Article
    Restricted access - publisher's policy
    Dielectric and piezoelectric responses of slightly textured, lead barium niobate ceramics are studied. The designed morphotropic phase boundary composition (Pb0.63Ba0.37Nb2O6) shows considerable nonlinear dielectric and ...
  • Direct identification of extended defects as vortex pinning centers in melt textured YBa/sub 2/Cu/sub 3/O/sub 7/-Y/sub 2/BaCuO/sub 5/ composites 

    Puig Molina, Teresa; Obradors i Berenguer, Francesc Xavier; Martinez, B; Sandiumenge, F; O'Callaghan Castellà, Juan Manuel; Rabier, J (1999-06)
    Article
    Open Access
    Single domain YBa/sub 2/Cu/sub 3/O/sub 7/-Y/sub 2/BaCuO/sub 5/ melt textured ceramic composites have revealed a very rich microstructure, which has usually impeded, by using standard measurements, to evaluate the contribution ...
  • Elastic, dielectric and electromechanical properties of (Bi0.5Na0.5)TiO3-BaTiO3 piezoceramics at the morphotropic phase boundary region 

    Machado, Rodrigo; dos Santos, Valdeci B.; Ochoa Guerrero, Diego A.; Cerdeiras Montero, Elena; Mestres, Lourdes; García García, José Eduardo (2017-01-05)
    Article
    Open Access
    A systematic study of the functional properties of the (1-x)(Bi0.5Na0.5)TiO3–xBaTiO3 (BNT-xBT) piezoceramic system for 0.05 = x = 0.07 is performed. The samples are obtained through the conventional solid-state route. The ...
  • Enhanced hydrothermal resistance of Y-TZP ceramics through colloidal processing 

    Rayón Encinas, Emilio; Moreno, R.; Alcázar, C.; Salvador Moya, Maria Dolores; Manjon Herrera, Francisco Javier; Jiménez Piqué, Emilio; Llanes Pitarch, Luis Miguel (2013-02-28)
    Article
    Restricted access - publisher's policy
    Two commercial zirconia powders with 3 mol% of yttria (TZ3YE and TZ3YS, labeled as ZE and ZS, respectively) sup- plied by Tosoh (Japan) were used for this study. Maximum colloidal stability for ZE was achieved by ...
  • Estudio y simulación por elementos finitos del comportamiento de discos cerámicos 

    Jiménez Rodríguez, Rafael Manuel (Universitat Politècnica de Catalunya, 2010-02)
    Master thesis (pre-Bologna period)
    Open Access
    La caracterización mecánica de los materiales requiere de la realización de ensayos mecánicos, generalmente con protocolos establecidos y normalizados, a fin de determinar los parámetros que permitan la valoración de su ...
  • Estudis d'Esteve Terrades sobre la volta de maó de pla 

    Rosell Colomina, Jaume; Serrà Martín, Isabel (Institut d'Estudis Catalans (IEC), 1987-01-31)
    Part of book or chapter of book
    Open Access
    Reflexió sobre els treballs que realitzà Esteve Terrades i Illa sobre el comportament resistent de les voltes de maó de pla.
  • Evaluation of damage in front of starting notches induced by ultra-short pulsed laser ablation for the determination of fracture toughness in zirconia 

    Turón Viñas, Miquel; Morillas, José; Moreno, Pablo; Anglada Gomila, Marcos Juan (Elsevier, 2017-12-01)
    Article
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    Machining a very sharp notch on the surface of ceramics for fracture toughness testing has been a critical issue during many years. In this work, we explore a novel method capable of inducing sharp features with negligible ...
  • Grietas pequeñas y resistencia a la rotura de materiales cerámicos tenaces 

    Turón Viñas, Miquel; Roa Rovira, Joan Josep; Anglada Gomila, Marcos Juan (2017)
    Conference lecture
    Restricted access - publisher's policy
    La tenacidad de fractura, KIc, de 3Y-ZrO2 con dos diferentes tamaños de grano (177 and 330 nm) y la de 12Ce-ZrO2 se han determinado por medio de un ensayo de flexión en cuatro puntos en probetas prismáticas con grietas ...
  • Growth and physical properties of highly oriented La-doped (K,Na)NbO3 ferroelectric thin films 

    Vendrell Villafruela, Xavier; Raymond, Oscar; Ochoa Guerrero, Diego A.; García García, José Eduardo; Mestres, Lourdes (2015-02-27)
    Article
    Open Access
    Lead-free (K,Na)NbO3 (KNN) and La doped (K,Na)NbO3 (KNN-La) thin films are grown on SrTiO3 substrates using the chemical solution deposition method. The effect of adding different amounts of Na and K excess (0-20 mol%) is ...
  • Influence of the type of rare-earth cation on electrical properties of Ba(Zr,Ti)O3 ceramics 

    Delgado del Toro, Ariel; Guerrero Peña, E; Leyet Ruiz, Yuri; Guerrero Zayas, Fidel; Mestres, Lourdes; Ochoa Guerrero, Diego A.; García García, José Eduardo (2011-02)
    Article
    Open Access
    En este artículo es investigado el efecto del radio iónico de diferentes cationes de tierras raras sobre las propiedades eléctricas del compuesto Ba(Zr,Ti)O3. La cerámica BaZr0.09Ti0.9O3 fue dopada con iones de Gd3+, Pr3+ ...
  • La tècnica del mosaic hidràulic i el modernisme 

    Rosell Colomina, Jaume; Rosell Amigó, Juan Ramón (1986-11)
    Article
    Restricted access - publisher's policy
  • Mechanical characterization at nanometric scale of ceramic superconductor composites I 

    Roa Rovira, Joan Josep; Capdevila, X.G.; Segarra, M. (NovasScience Publishers, 2009)
    Part of book or chapter of book
    Restricted access - publisher's policy
  • Microstructure, interfaces and properties of 3YTZP ceramic composites with 10 and 20 vol% different graphene-based nanostructures as fillers 

    Muñoz Ferreiro, Carmen; Morales Rodriguez, Ana; Rojas, Teresa Cristina; Jiménez Piqué, Emilio; López Pernía, Cristina; Poyato, Rosalía; Gallardo Lopez, Angela (2019-03-10)
    Article
    Restricted access - publisher's policy
    The graphene family comprises not only single layer graphene but also graphene-based nanomaterials (GBN), with remarkably different number of layers, lateral dimension and price. In this work, two of these GBN, namely ...
  • Millimeter-wave propagation within a computer chip package 

    Timoneda, Xavier; Abadal Cavallé, Sergi; Cabellos Aparicio, Alberto; Manessis, Dionyssios; Zhou, Jin; Franques, Antonio; Torrellas, Josep; Alarcón Cot, Eduardo José (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Open Access
    Wireless Network-on-Chip (WNoC) appears as a promising alternative to conventional interconnect fabrics for chip-scale communications. The WNoC paradigm has been extensively analyzed from the physical, network and architecture ...
  • New results in the characterization by Raman spectroscopy of yellow pigments used in ceramic artworks of the 16th and 17th centuries 

    Ferrer Espinilla, Perla; Ruiz Moreno, Sergio; Lopez Gil, A.; Chillon, M.C.; Sandalinas Linares, Maria Carmen (2012-11)
    Article
    Restricted access - publisher's policy
    This investigation is focused on the identification in ceramic artworks of certain nonstandard yellow/orange pigments whose composition is based, fundamentally, on lead, tin, and antimony oxides with or without silica. In ...
  • Nonlinear dielectric response of BaBi4Ti4O15 ceramics 

    Kumar, Sunil; Ochoa Guerrero, Diego A.; García García, José Eduardo; Varma, K.B.R (American Institute of Physics (AIP), 2012)
    Conference lecture
    Restricted access - publisher's policy
    Nonlinear dielectric response of BaBi4Ti4O15 ceramics synthesized via the conventional solid-state reaction route has been monitored over a wide range of electric field strengths (E0 = 0.5-5 kV/cm). Dielectric permittivity ...
  • Nonlinear dielectric response of BaBi4Ti4O15 ceramics 

    Kumar, Sunil; Ochoa Guerrero, Diego A.; García García, José Eduardo; Varma, K.B.R (2013-02-05)
    Article
    Restricted access - publisher's policy
    Nonlinear dielectric response of BaBi 4 Ti 4 O 15 ceramics synthesized via the conventional solid-state reaction route has been monitored over a wide range of electric field strengths (E 0 = 0.5-5 kV/cm). Dielectric ...