Now showing items 21-40 of 40

  • Improvement of 3Y-TZP hydrothermal degradation resistance by surface modification with ceria without impairing mechanical properties 

    García Marro, Fernando; Valle Chiro, Jorge Antonio; Mestra Rodríguez, Álvaro Miguel; Anglada Gomila, Marcos Juan (2010)
    Conference lecture
    Restricted access - publisher's policy
    Surface modification with cerium oxide of tetragonal zirconia polycrystals stabilised with 3 % molar yttria (3Y-TZP) has been investigated in order to avoid low temperature degradation. The surface modification was performed ...
  • Influencia de la degradación hidrotérmica en la resistencia mecánica y comportamiento al desgaste de 3Y-TZP 

    Mestra Rodríguez, Álvaro Miguel; García Marro, Fernando; Kiran Chitapalli, Ravi; Armas Sancho, Zamir de; Anglada Gomila, Marcos Juan (2012)
    Article
    Open Access
    En este trabajo se realiza un estudio comparativo de la influencia de la degradación hidrotérmica a baja temperatura de circona tetragonal estabilizada con el 3% molar de Itria (3Y-TZP) en la resistencia mecánica a flexión ...
  • Influencia de la degradación hidrotérmica en la resistencia mecánica y comportamiento al desgaste de 3Y-TZP 

    Mestra Rodríguez, Álvaro Miguel; García Marro, Fernando; Kiran Chitapalli, Ravi; Armas Sancho, Zamir de; Anglada Gomila, Marcos Juan (2012)
    Conference report
    Open Access
    En este trabajo se realiza un estudio comparativo de la influencia de la degradación hidrotérmica a baja temperatura de circona tetragonal estabilizada con el 3% molar de Itria (3Y-TZP) en la resistencia mecánica a flexión ...
  • Influencia de la degradación hidrotérmica en la resistencia mecánica y en el comportamiento al desgaste de 3Y-TZP 

    Mestra Rodríguez, Álvaro Miguel; García Marro, Fernando; Kiran Chitapalli, Ravi; Armas Sancho, Zamir de; Anglada Gomila, Marcos Juan (2012)
    Conference report
    Restricted access - publisher's policy
    En este trabajo se realiza un estudio comparativo de la influencia de la degradación hidrotérmica a baja temperatura de circona tetragonal estabilizada con el 3% molar de Itria (3Y-TZP) en la resistencia mecánica a flexión ...
  • Mechanical properties and resistance to low temperature degradation of surface nitrided 3Y-TZP 

    Valle Chiro, Jorge Antonio; Mestra Rodríguez, Álvaro Miguel; García Marro, Fernando; Anglada Gomila, Marcos Juan (Elsevier, 2013-12)
    Article
    Restricted access - publisher's policy
    3Y-TZP has been one of the most applied ceramics in the biomedical field, specifically for hip, knee and dental implants, given its high strength, moderate fracture toughness and excellent biocompatibility. However, ...
  • Mechanical properties of 12Ce-ZrO2/3Y-ZrO2 composites 

    Turón Viñas, Miquel; Roa Rovira, Joan Josep; García Marro, Fernando; Anglada Gomila, Marcos Juan (2015-12-01)
    Article
    Open Access
    12Ce-ZrO2/3Y-ZrO2 composites with different compositions have been prepared by presureless sintering at 1450 degrees C and the resulting microstructures have been correlated with their mechanical properties in terms of ...
  • Mechanical properties of alumina infiltrated zirconia nanocomposites 

    Camposilvan, Erik; García Marro, Fernando; Maspero, F.; Cuspidi, G.; Anglada Gomila, Marcos Juan (2012)
    Conference report
    Open Access
  • Nanoindentation and fracture toughness of nanostructured zirconia/multi-walled carbon nanotube composites 

    Melk, Latifa; Roa Rovira, Joan Josep; García Marro, Fernando; Antti, Marta-Lena; Milsom, Ben; Reece, Michel; Anglada Gomila, Marcos Juan (2015-03-01)
    Article
    Open Access
    Multi-walled carbon nanotubes (MWCNTs)/3 mol% yttria-doped tetragonal zirconia (3Y-TZP) composites were produced using spark plasma sintering (SPS) with MWCNT content ranging within 0-2 wt%. In the present paper, it was ...
  • Phase transformation and subsurface damage in 3Y-TZP after sandblasting 

    Chintapalli, R.K.; García Marro, Fernando; Jiménez Piqué, Emilio; Anglada Gomila, Marcos Juan (2013-05)
    Article
    Restricted access - publisher's policy
    Objective The goal of this work is to investigate t–m phase transformation, and subsurface damage in 3Y-TZP after sandblasting. Methods Commercial grade 3Y-TZP powder was conventionally sintered and fully dense ...
  • 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 ...
  • Relationship between density and mechanical properties of spark plasma sintered zirconia ceramics 

    Kiran Chitapalli, Ravi; García Marro, Fernando; Mestra Rodríguez, Álvaro Miguel; Reece, Michel; Anglada Gomila, Marcos Juan (2010)
    Conference report
    Restricted access - publisher's policy
    Zirconia ceramics stabilized with 3 mol % Yttria were produced by spark-plasma sintering. Toughness, Vickers hardness, nanoindentation elastic modulus and Berkovich hardness were determined in terms of the final density ...
  • 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 ...
  • Sliding wear behaviour of surface nitrided zirconia 

    Valle Chiro, Jorge Antonio; Mestra Rodríguez, Álvaro Miguel; García Marro, Fernando; Anglada Gomila, Marcos Juan (2011)
    Conference report
    Restricted access - publisher's policy
    Tetragonal polycrystalline zirconia stabilised with 3% molar yttria (3Y-TZP) has found wide applications in orthopaedics and dentistry because of its excellent mechanical properties (flexural strength above 1000 MPa, ...
  • Stability of nanocrystalline spark plasma sintered 3Y-TZP 

    Kiran Chitapalli, Ravi; Mestra Rodríguez, Álvaro Miguel; García Marro, Fernando; Yan, Haixue; Reece, Michel; Anglada Gomila, Marcos Juan (2010)
    Article
    Open Access
    Spark plasma sintered 3Y-TZP has been investigated with respect to hydrothermal ageing and grinding. The sintering was performed between the temperatures of 1,100 and 1,600 °C for a soaking time of 5 minutes and the resulting ...
  • Strengthening of Vickers indented 3Y-TZP by hydrothermal ageing 

    García Marro, Fernando; Anglada Gomila, Marcos Juan (Elsevier, 2012-02)
    Article
    Restricted access - publisher's policy
    The effect of hydrothermal ageing on indentation cracks has been determined in 3Y-TZP by measuring the flexure strength of indented specimens before and after ageing. A substantial increase in strength was observed after ...
  • Surface integrity assessment of laser treated and subsequently coated cemented carbides 

    Fang, Shiqi; García Marro, Fernando; Salán Ballesteros, Maria Núria; Cruz, Marlon; Colominas Guardia, Carles; Baehre, Dirk; Llanes Pitarch, Luis Miguel (2019)
    Article
    Restricted access - publisher's policy
    Cemented carbides, referred to as hardmetals, are forefront engineering materials widely implemented in industry for chip-removal cutting tools and supporting parts. As a newly developed technology for surface modification ...
  • Surface modification of 3Y-TZP with cerium oxide 

    García Marro, Fernando; Valle Chiro, Jorge Antonio; Mestra Rodríguez, Álvaro Miguel; Anglada Gomila, Marcos Juan (Elsevier, 2010-11)
    Article
    Restricted access - publisher's policy
  • Tribological performance of laser patterned cemented tungsten carbide parts 

    Fang, Shiqi; Herrmann, T; Rosenkranz, A; Gachot, C; García Marro, Fernando; Mücklich, Frank; Llanes Pitarch, Luis Miguel; Bähre, Dirk (Elsevier, 2016)
    Article
    Open Access
    Some tools for machining processes used to be guided by supporting parts while using them for cutting or abrasive machining. For instance, the guide stone is used as supporting part in the honing process, which maintains ...
  • Weibull characterization of the flexural strength of hydrothermally degraded 3Y-TZP zirconia 

    García Marro, Fernando; Mestra Rodríguez, Álvaro Miguel; Lamghari, Manal; Anglada Gomila, Marcos Juan (2010)
    Conference report
    Open Access
    The flexural strength of 3% mol yttria-stabilized tetragonal polycrystalline zirconia (3Y-TZP) with a ~0.30m grain size was studied under 4-point bending test. The material was evaluated both as received and after water ...
  • Weibull strength statistics of hydrothermally aged 3 mol% yttria-stabilised tetragonal zirconia 

    García Marro, Fernando; Mesta, A.; Anglada Gomila, Marcos Juan (2014-09-01)
    Article
    Restricted access - publisher's policy
    The effect of hydrothermal degradation on the flexural strength and on the fracture statistics of 3 mol% yttria-stabilized tetragonal zirconia (3Y-TZP) has been investigated. To do so, a large number ( > 30) of specimens ...