Now showing items 1-20 of 24

  • 3D-printing of 8Y-TZP solid oxide fuel cell electrolytes 

    Claude, Paulo (Universitat Politècnica de Catalunya, 2019-02-15)
    Master thesis
    Open Access
    Covenantee:  UNIVERSITÉ DE LORRAINE
    In this Master's thesis were printed electrolytes for Solid Oxide Fuel Cell (SOFC) in yttria stabilized zirconia by additive manufacturing robocasting method and then characterized from the microstructural and mechanical ...
  • Aging resistance and fracture toughness of ceria–infiltrated zirconia 

    Camposilvan, Erik; García Marro, Fernando; Mestra Rodríguez, Álvaro Miguel; Anglada Gomila, Marcos Juan (Universidad de Alicante, 2012)
    Conference report
    Restricted access - publisher's policy
    The main drawback of yttria stabilized zirconia (3Y-TZP) is represented by the Low Temperature Degradation (LTD), which consists in the progressive transformation of the tetragonal phase, metastable at room temperature, ...
  • Ceria-zirconia particles wrapped in a 2D carbon envelope: improved low-temperature oxygen transfer and oxidation activity 

    Aneggi, Eleonora; Rico Perez, Veronica; de Leitenburg, Carla; Maschio, Stefano; Soler Turu, Lluís; Llorca Piqué, Jordi; Trovarelli, Alessandro (2015-10-08)
    Article
    Open Access
    Engineering the interface between different compo-nents of heterogeneous catalysts at nanometer level canradically alter their performances.This is particularly true forceria-based catalysts where the interactions are ...
  • Contact damage in artificially aged 3Y-TZP 

    Armas Sancho, Zamir de; Mestra Rodríguez, Álvaro Miguel; Jiménez Piqué, Emilio; Anglada Gomila, Marcos Juan (2010)
    Article
    Open Access
    Tetragonal zirconia polycrystals doped with 3% mol of yttria (3Y - TZP) are increasingly employed as implants in the human body, because they are biocompatible and have relatively high strength and fracture toughness. ...
  • Effect of sandblasting and residual stress on strength of zirconia for restorative dentistry applications 

    Kiran Chintapalli, Ravi; Mestra Rodríguez, Álvaro Miguel; García Marro, Fernando; Anglada Gomila, Marcos Juan (2014-01)
    Article
    Restricted access - publisher's policy
    Sandblasting is a commonly used surface treatment technique for dental crowns to improve the adhesion of the mating parts of a restoration. The goal of this work is to study the effect of different sandblasting conditions ...
  • Effect of surface degradation on wear behaviour of 3Y-TZP ceramics 

    Chintapalli, Ravikiran (Universitat Politècnica de Catalunya, 2008-09)
    Master thesis
    Restricted access - author's decision
    3Y-TZP ceramics used in biomedical applications, such as total hip replacement and dental restorations, are of large technological interest. The tendency of these ceramics to transform from tetragonal to monoclinic phase ...
  • 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 ...
  • Enhanced reliability of yttria-stabilized zirconia for dental applications 

    Camposilvan, Erik; García Marro, Fernando; Mestra Rodriguez, Alvaro; Anglada Gomila, Marc (2015-04-15)
    Article
    Open Access
    An increasing number of dental applications based on yttria-stabilized zirconia (3Y-TZP) have been developed in recent years as a result of the advances and versatility of dry-processing and soft machining at the pre-sintered ...
  • Femtosecond laser multi-patterning of zirconia for screening of cell-surface interactions 

    Stanciuc, Ana Maria; Flamant, Quentin; Sprecher, Christoph Martin; Alini, Mauro; Anglada Gomila, Marcos Juan; Peroglio, Marianna (Elsevier, 2018-03)
    Article
    Restricted access - publisher's policy
    Yttria-stabilised tetragonal zirconia polycrystals (3Y-TZP) bioinert ceramics combine excellent strength and toughness, good aesthetics, high resistance to corrosion and absence of allergic reaction. However, improved ...
  • Hydrofluoric acid etching of dental zirconia. Part 2: effect on flexural strength and ageing behavior 

    Flamant, Quentin; Anglada Gomila, Marcos Juan (Elsevier, 2016-01-01)
    Article
    Open Access
    Among the diverse treatments proposed to promote the osseointegration of zirconia dental implants, hydrofluoric acid (HF) etching appears to be a good candidate. However little is known on the effect of this process on the ...
  • Impressió 3D de multicapes ceràmiques amb base zircònia 

    Cayuela Rafols, Nuria (Universitat Politècnica de Catalunya, 2018-07-04)
    Bachelor thesis
    Open Access
    Avui en dia, els mètodes tradicionals de fabricació de materials ceràmics no permeten la realització de geometries complexes o, en cas de permetre-les, deriven en elevats costos de fabricació. Per aquesta raó, la tendència ...
  • Measurements of 90,91,92,93,94,96-Zr neutron capture cross sections at the n_TOF facility at CERN 

    Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Poch Parés, Agustí; Pretel Sánchez, Carme (2008)
    Conference report
    Open Access
    Neutron capture cross sections for zirconium isotopes have important implications in the field of nuclear astrophysics. In particular they play a key role in ascertaining the neutron density in the He burning zone of the ...
  • Microstructural and topographic chanages in zirconia ceramic materials by Nd:YLF laser irradiation 

    González Nadal, Victoria (Universitat Politècnica de Catalunya, 2017-06-21)
    Master thesis
    Restricted access - author's decision
    The main focus of this project was to investigate the role of different laser parameters, such as laser current intensity and pulse repetition frequency, on ablation characteristics and damage of induced surface patterns ...
  • Modificación superficial de implantes de cabeza femoral 

    Puiraveau, Marion (Universitat Politècnica de Catalunya, 2009-02)
    Master thesis (pre-Bologna period)
    Open Access
    La circona o dióxido de zirconio (ZrO2) es una cerámica con numerosas aplicaciones debido a una buena combinación de propiedades. En particular, el material Y2O3-TZP (Y2O3 stabilized tetragonal zirconia polycrystal) es ...
  • New aluminium-silicon-copper microalloyed alloys 

    Font Moragón, Jaume; Schlesier Corrales, Alfred (Universitat Politècnica de Catalunya, 2018-02)
    Bachelor thesis
    Restricted access - author's decision
    Covenantee:  Bostlan / Aleastur
    [ANGLÈS] The objective of this project has been the development of new microalloyed aluminium-silicon-copper alloys, in order to obtain materials with improved properties through the application of heat treatments. Initially ...
  • Nous aliatges d'alumini microaliat 

    Font Moragón, Jaume; Cortina, Adrià (Universitat Politècnica de Catalunya, 2017-07)
    Bachelor thesis
    Restricted access - author's decision
    L’objectiu d’aquest projecte ha estat el desenvolupament de nous aliatges microaliats d’alumini per tal d’aconseguir materials amb propietats millorades mitjançant l’aplicació de tractaments tèrmics. Per poder dur a terme ...
  • Processing and characterization of high-density zirconia-carbon nanotube composites 

    Chintapalli, R.K.; García Marro, Fernando; Milsom, Ben; Reece, Michel; Anglada Gomila, Marcos Juan (2012-07-15)
    Article
    Restricted access - publisher's policy
    Addition of multiwall carbon nanotubes (MWCNTs) to polycrystalline ceramics is currently considered as a potential method for improving their mechanical properties, mainly their fracture toughness. High density composites ...
  • Proyecto y estudio de viabilidad del aprovechamiento térmico del aire generado por un molino de bolas para el procesamiento de mineral de zirconio a través de un ciclón 

    Deiros Domínguez, Xose Lois (Universitat Politècnica de Catalunya, 2018-01)
    Master thesis
    Open Access
    El objetivo de este proyecto es diseñar un secadero en la nave anexa a la producción del circonio y trasportar el mismo hacia dicha nave. Este aire caliente se produce en el martillo de bolas al triturar mineral de Zirconio ...
  • Revealing crack profiles in polycrystalline tetragonal zirconia by ageing 

    García Marro, Fernando; Camposilvan, Erik; Anglada Gomila, Marcos Juan (Elsevier, 2012-07)
    Article
    Restricted access - publisher's policy
    Exposure to hot water vapour is shown to be useful for staining indentation crack profiles in doped zirconia polycrystals. This is illustrated here in 3Y-TZP with two different grain sizes, for which Vickers indentation ...
  • Selective etching of injection molded zirconia-toughened alumina: Towards osseointegrated and antibacterial ceramic implants 

    Flamant, Quentin; 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
    Open Access
    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 ...