Browsing by Subject "Zirconi"
Now showing items 1-20 of 45
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3D-printing of 8Y-TZP solid oxide fuel cell electrolytes
(Universitat Politècnica de Catalunya, 2019-02-15)
Master thesis
Open Access
Covenantee: Université de LorraineIn 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 ... -
A review of surface topographical modification strategies of 3Y-TZP: Effect in the physicochemical properties, microstructure, mechanical reliability, and biological response
(Elsevier, 2023-07-01)
Article
Open AccessThe development of zirconia dental implants has become increasingly popular over the last years due to the outstanding mechanical properties, superior aesthetic appearance and high biocompatibility of this material. However, ... -
Aging resistance and fracture toughness of ceria–infiltrated zirconia
(Universidad de Alicante, 2012)
Conference report
Restricted access - publisher's policyThe 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, ... -
Aluminum protection by using green zirconium oxide layer and organic coating: An efficient and adherent dual system
(2021-09-01)
Article
Open AccessIn this work, the use of ZrO2 nanocoating in aluminum substrates, generated by controlled electrochemical chronoamperometry in hexafluorozirconic acid solutions (H2ZrF6·5H2O), resulted in a lower porous films than that ... -
Ceria-zirconia particles wrapped in a 2D carbon envelope: improved low-temperature oxygen transfer and oxidation activity
(2015-10-08)
Article
Open AccessEngineering 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 ... -
Characterization of 3d printed yttria-stabilized zirconia parts for use in prostheses
(2021-11-03)
Article
Open AccessThe main aim of the present paper is to study and analyze surface roughness, shrinkage, porosity, and mechanical strength of dense yttria-stabilized zirconia (YSZ) samples obtained by means of the extrusion printing ... -
Circona dopada con ceria, calcia y alumina para aplicaciones dentales
(Universitat Politècnica de Catalunya, 2020-10-15)
Bachelor thesis
Open AccessAvui dia La circona ha estat molt estudiada per tal de donar-li ús com a biomaterial. El tenir bones propietats mecàniques, tant de tenacitat, resistència a el desgast com biocompatibilitat, ha fet que les restauracions ... -
Combination of laser-assisted surface modification and chemical etching on zirconia-based biomaterials: effect on the psichochemical and mechanical properties
(Universitat Politècnica de Catalunya, 2023-02-09)
Master thesis
Open AccessTetragonal zirconia polycrystal stabilized with 3% mol of yttria (3Y-TZP) is a ceramic material frequently used to replace traditional titanium dental implants given to its high flexural strength, biocompatibility, and ... -
Contact damage in artificially aged 3Y-TZP
(2010)
Article
Open AccessTetragonal 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. ... -
Disseny de procés d'obtenció de recobriments d'òxid de cobalt sobre catalitzadors base zircònia obtinguts per impressió 3D
(Universitat Politècnica de Catalunya, 2024-02-01)
Bachelor thesis
Open AccessLa manufactura additiva és un mètode de fabricació que ha agafat gran importància al llarg dels darrers anys. Amb l’avantatge de poder crear peces amb geometries complexes juntament amb millores recents en l’eficiència ... -
Efecte del disseny de fabricació en la resposta mecànica d’estructures base zircònia obtingudes per impressió 3d infiltrades amb polímer biocompatible
(Universitat Politècnica de Catalunya, 2022-07-07)
Master thesis
Open AccessUna de les principals limitacions que presenten els materials ceràmics és la dificultat de poder fabricar peces amb geometries complexes. Les tècniques d'impressió 3D, en concret, la utilitzada en aquest treball, anomenada ... -
Effect of sandblasting and residual stress on strength of zirconia for restorative dentistry applications
(2014-01)
Article
Restricted access - publisher's policySandblasting 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
(Universitat Politècnica de Catalunya, 2008-09)
Master thesis
Restricted access - author's decision3Y-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 ... -
Effect of topographical modification treatments of zirconia on topography, microstructure, and bacterial adhesion
(Universitat Politècnica de Catalunya, 2024-02-16)
Master thesis
Open AccessNowadays, the material’s choice for dental implants is increasingly shifting towards zirconia-based ones. Indeed, 3 mol.% yttria stabilized zirconia (3Y-TZP) is recognized as an excellent choice due to its good mechanical ... -
Enhanced hydrothermal resistance of Y-TZP ceramics through colloidal processing
(2013-02-28)
Article
Restricted access - publisher's policyTwo 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
(2015-04-15)
Article
Open AccessAn 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
(Elsevier, 2018-03)
Article
Restricted access - publisher's policyYttria-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 ... -
Funcionalización de piezas de zirconia fabricadas por impresión 3D con nanopartículas de plata y lignina
(Universitat Politècnica de Catalunya, 2021-07-06)
Bachelor thesis
Open AccessEls propòsits d’aquest treball són la caracterització d’un material ceràmic-polimèric biocompatible emprat en aplicacions dentals, i la integració de les nanopartícules de plata en el sistema híbrid i la seva caracteritz ... -
How relevant are molecular electronic parameters for predicting corrosion inhibition efficiency: imidazoles as corrosion inhibitors of Cu/Zr materials in NaCl solution
(2021-12-01)
Article
Restricted access - publisher's policyCorrelations between corrosion inhibition efficiencies and DFT calculated molecular parameters are critically evaluated for nine imidazole-based compounds on eight Cu/Zr materials in 3 wt% NaCl solution. To this end, 31 ... -
Hydrofluoric acid etching of dental zirconia. Part 2: effect on flexural strength and ageing behavior
(Elsevier, 2016-01-01)
Article
Open AccessAmong 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 ...
