Browsing by Subject "Zirconi -- Propietats mecàniques"
Now showing items 1-20 of 27
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A parametric study of laser interference surface patterning of dental zirconia: Effects of laser parameters on topography and surface quality
(2017-01)
Article
Open AccessThe aim of this work is to generate micrometric linear patterns with different topography on dental grade zirconia by means of UV laser interference and to assess the quality of the produced surface, both in term of the ... -
Cambios microestructurales en 3Y-TZP desbastada y su influencia en la degradación hidrotérmica
(Universitat Politècnica de Catalunya, 2010-11-12)
Doctoral thesis
Open AccessThe use of zirconia ceramics (ZrO2) as advanced structural materials is based on toughness increasing by tetragonal to monoclinic (tm) phase transformation. Of these, the 3Y-TZP (tetragonal polycrystalline zirconia doped ... -
Correlation between chemical treatment and the superficial and mechanical properties of zirconia Abstract
(Universitat Politècnica de Catalunya, 2013-06)
Master thesis (pre-Bologna period)
Open AccessThe main goal of the project is to understand the mechanisms of chemical etching to obtain superficial roughness for biomedical applications. The material studied in this project is Yttria Tetragonal Zirconia Polycristal ... -
Critical influence of the processing route on the mechanical properties of zirconia composites with graphene nanoplatelets
(Multidisciplinary Digital Publishing Institute (MDPI), 2020-12-29)
Article
Open AccessGraphene-based nanostructures, used as potential reinforcement in ceramic composites, have a great tendency to agglomerate. This requires the use of homogenization techniques during the powder processing, posing the need ... -
Desarrollo de un nuevo método para revelar grietas en 3Y-TZP
(Universitat Politècnica de Catalunya, 2011-06)
Master thesis (pre-Bologna period)
Open AccessLa circona tetragonal estabilizada con 3% molar de itrio (3Y-TZP) ha sido usada como biomaterial desde hace muchos años en el dominio de cirugía e implantes articulares tales como las cabezas femorales de prótesis de ... -
Desarrollo y caracterización de materiales compuestos basados en óxido de circona estabilizado con itrio y cerio
(Universitat Politècnica de Catalunya, 2013-06)
Bachelor thesis
Open AccessEn los últimos años, se han realizado gran número de investigaciones acerca de las cerámicas basadas en óxido de circonio (ZrO2) debido a su gran interés como material estructural avanzado y a su uso en, por ejemplo, ... -
Elaboración y caracterización de materiales compuestos basados en óxido de circonio estabilizados con cerio y calcio
(Universitat Politècnica de Catalunya, 2017-09)
Master thesis
Open AccessLos materiales cerámicos de óxido de circonio estabilizado con óxido de cerio se distinguen por su alta tenacidad a la fractura y su buena resistencia a la degradación hidrotérmica en ambientes húmedos, fenómeno que se ... -
Enhancement of mechanical properties of ceria-calcia stabilized zirconia by alumina reinforcement
(Elsevier, 2020-01-01)
Article
Open AccessZirconia ceramics stabilized using 10 mol% CeO2 and 1 mol% CaO were studied with the addition of small amounts of a-alumina. The elaboration process of five different compositions was done by wet mixing of powders using ... -
Ensayos mecánicos en circona dental esmaltada
(Universitat Politècnica de Catalunya, 2010-06)
Master thesis (pre-Bologna period)
Open AccessLos daños que se han documentado y pueden ocasionar el fracaso de las prótesis de corona en los implantes dentales, suele ser el cuarteo, el desportillamiento, las fisuras semi-elípticas y las grietas en la zona de ... -
Evolution of microstructure and residual stresses in gradually ground/polished 3Y-TZP
(Elsevier, 2019-01-01)
Article
Open Access
Covenantee: Universität des Saarlandes / Institut de Bioenginyeria de CatalunyaA comprehensive study of progressively ground/polished 3Y-TZP was performed with the aim of better understanding the mechanisms driving the microstructural modifications observed after such procedures, and identifying the ... -
Focused ion beam tomography of zirconia degraded under hydrothermal conditions
(Elsevier, 2012-08)
Article
Restricted access - publisher's policyThree-dimensional tomography was performed on hydrothermal degraded zirconia by sequential focussed ion beam (FIB) sectioning and field emission scanning electron microscopy (FE-SEM) observation. By means of image analysis ... -
Fracture toughness of zirconia from a shallow notch produced by ultra-short pulsed laser ablation
(Elsevier, 2014-07-01)
Article
Restricted access - publisher's policyCeria partially stabilized zirconia ceramics (Ce-TZP) with identical grain size and different amounts of transformation toughening were processed to investigate the influence of phase transformation on static and cyclic ... -
Influence of sandblasting on zirconia in restorative dentistry
(Universitat Politècnica de Catalunya, 2012-09-28)
Doctoral thesis
Open AccessLa utilización de circona tetragonal policristalina estabilizada con 3 % mol de itria (3Y-TZP) para fabricar coronas e implantes ha sufrido una fuerte expansión recientemente debido a las buenas propiedades mecánicas, ... -
Low temperature degradation and mechanical properties of alumina reinforced ceria-zirconia by colloidal processing
(Elsevier, 2021-02-02)
Article
Open Access10Ce-TZP base composites with 2.5, 5, 10 and 15 wt% alumina were fabricated by colloidal processing from slurries with 41 vol% solid load in order to investigate the effects of alumina in the final composites aging and ... -
Mechanical properties of 12Ce-ZrO2/3Y-ZrO2 composites
(2015-12-01)
Article
Open Access12Ce-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
(2012)
Conference report
Open Access -
Micro-compression of 3Y-TZP degraded layer
(2014)
Conference report
Open Access -
Micro-mechanical testing of advanced ceramics: tools, procedures and first results
(Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2013)
Conference report
Restricted access - publisher's policyMicro-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” ... -
Micropillar compression inside zirconia degraded layer
(Elsevier, 2015-11-01)
Article
Open AccessIn the dental field, Yttria-doped Tetragonal Polycrystalline Zirconia (Y-TZP) plays an important role due to its high mechanical properties, good aesthetics and bio-inert behavior. Surface mechanical properties are crucial ... -
Nanoindentación de capas finas de ZrW
(Universitat Politècnica de Catalunya, 2009-02)
Master thesis (pre-Bologna period)
Open AccessEl objetivo de este proyecto es de determinar el mejor modelo analítico para caracterizar el comportamiento mecánico (modulo elástico y dureza) de una capa fina de ZrW depositada sobre un sustrato de sílice. Para el ...
