Now showing items 21-40 of 42

    • 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
    • Micro-compression of 3Y-TZP degraded layer 

      Camposilvan, Erik; Anglada Gomila, Marcos Juan (2014)
      Conference report
      Open Access
    • Micro-mechanical testing of advanced ceramics: tools, procedures and first results 

      Camposilvan, Erik; Jiménez Piqué, Emilio; Anglada Gomila, Marcos Juan (Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2013)
      Conference report
      Restricted access - publisher's policy
      Micro-mechanical testing has lately become a more accessible tool for understanding deformation, strengthening and failure mechanisms at small scales. It has been found that the often considered intrinsic or “intensive” ...
    • Micromechanical properties of yttria-doped zirconia ceramics manufactured by direct ink writing 

      Yarahmadi, Mona; Cabezas Peñalva, Laura; Ortiz Membrado, Laia; Llanes Pitarch, Luis Miguel; Fargas Ribas, Gemma (Elsevier, 2023-07-08)
      Article
      Open Access
      Yttria-doped zirconia ceramics have many applications in a wide range of industries mainly due to their excellent mechanical properties, corrosion resistance and biocompatibility. In this study, micromechanical properties ...
    • 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 ...
    • Obtenció de recobriments d'òxid de cobalt sobre catalitzadors base zircònia obtinguts per impressió 3D 

      Escuer i Elizalde, Oscar (Universitat Politècnica de Catalunya, 2023-07-07)
      Bachelor thesis
      Restricted access - confidentiality agreement
      Els avenços durant les últimes dècades, han convertit la fabricació additiva en una tècnica àmpliament utilitzada en diversos sectors. Aquesta tècnica presenta múltiples avantatges com són els temps curts que es requereixen ...
    • 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 ...
    • Preparation of SBA-15 and Zr-SBA-15 materials by direct-synthesis and pH-adjustment methods 

      Chimentäo, Ricardo José; Peixoto, Agnes; Llorca Piqué, Jordi (2021-10-15)
      Article
      Open Access
      SBA-15 mesoporous silica materials with zirconium atoms incorporated into its structure were prepared by two methods: direct-synthesis and pH-adjustment. Two nominal ratios of Zr/Si = 0 and 0.10 were evaluated. N2-physisorption, ...
    • 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 ...
    • Small-scale mechanical behavior of zirconia 

      Camposilvan, Erik; Torrents Abad, Oscar; Anglada Gomila, Marcos Juan (2014-07-20)
      Article
      Restricted access - publisher's policy
      The surface stability of yttria-doped tetragonal polycrystalline zirconia is critical for load-bearing biomedical applications. In this work, the small-scale mechanical behavior of this material is probed by employing the ...
    • Study of the influence of copper on zirconium-based coatings 

      Binti Rosly, Anis Attira (Universitat Politècnica de Catalunya, 2019-06-10)
      Bachelor thesis
      Restricted access - author's decision
      Covenantee:   Leitat Technological Center
      Zirconium oxide-based conversion coatings are nickel free alternatives to phosphate coatings. By focusing more on ZrCC we will be able to create a thin film technology that is environmentally friendly, cost effective and ...
    • Surface modification of zirconia to improve its performance as a bioceramic material 

      Torelló Massana, Maria Del Mar (Universitat Politècnica de Catalunya, 2020-10-22)
      Master thesis
      Restricted access - author's decision
      La zircònia es un material ceràmic utilitzat en aplicacions dentals i ortopèdiques que ha estat àmpliament estudiat durant les ultimes dècades. La literatura al respecte preveu un futur prometedor per a aquests materials ...
    • Surface topographical modification of ZrO2-based biomaterials for dental applications 

      García Ahedo, Alicia (Universitat Politècnica de Catalunya, 2018-06-29)
      Bachelor thesis
      Open Access
      Surface topographical modification of ZrO2-based biomaterials for the studying of: the resultant topography of the treatments, mechanical and physicochemical properties and analyze the response of cells or bacteria to these ...
    • Tomography of indentation cracks in feldspathic dental porcelain on zirconia 

      Rueda Arango, Astrid Oasis; Seuba, Jordi; Anglada Gomila, Marcos Juan; Jiménez Piqué, Emilio (2013-02-11)
      Article
      Restricted access - publisher's policy
      Objectives The objective of this work is to study the crack produced by spherical and sharp indentation on veneering feldspathic dental porcelain in order to understand the morphology of the cracks in the surface and ...
    • Tribological behavior of surface nitrided zirconia 

      Puaud, Margerie (Universitat Politècnica de Catalunya, 2009-02)
      Master thesis (pre-Bologna period)
      Open Access
      Since the middle of the 80’s, zirconia stabilized with yttrium oxide (Y-TZP) is used in order to produce femoral heads. This material shows a reinforcement mechanism by phase transformation that provides excellent mechanical ...