Results 21 to 30 of about 78,079 (295)

Osseointegration of zirconia implants : an SEM observation of the bone-implant interface [PDF]

open access: yes, 2008
Background The successful use of zirconia ceramics in orthopedic surgery led to a demand for dental zirconium-based implant systems. Because of its excellent biomechanical characteristics, biocompatibility, and bright tooth-like color, zirconia ...
Lammers, Lydia   +19 more
core   +1 more source

Hydrothermally Stable, Conformal, Sulfated Zirconia Monolayer Catalysts for Glucose Conversion to 5-HMF [PDF]

open access: yes, 2015
The grafting and sulfation of zirconia conformal monolayers on SBA-15 to create mesoporous catalysts of tunable solid acid/base character is reported. Conformal zirconia and sulfated zirconia (SZ) materials exhibit both Brönsted and Lewis acidity, with ...
Melero, Juan A.   +29 more
core   +1 more source

Colloidal stability for concentrated zirconia aqueous suspensions [PDF]

open access: yes, 2009
This work started as part of an investigation into the mechanisms by which fine zirconia aqueous dispersions can be processed for ceramic materials engineering.
Guizard, Christian   +8 more
core   +1 more source

Huge local elastic strains in bulk nanostructured pure zirconia materials [PDF]

open access: yes, 2021
From the liquid state to room temperature, two successive solid-state phase transitions occur in pure zirconia. It is well-known that the last one (tetragonal to monoclinic) is martensitic and induces large volume variations and shear strains.
MICHA, Jean-Sébastien   +7 more
core   +1 more source

Study of the Synthesis of Zirconia Powder from Zircon Sand obtained from Zircon Minerals Malaysia by Caustic Fusion Method

open access: yesIndonesian Journal of Chemistry, 2020
The zircon powder from Zircon Minerals Malaysia is a pure premium grade zircon sand milled 1.5 µm that contain ZrSiO4, ZrO2, HfO2, SiO2, Al2O3, TiO2, and Fe2O3.
Istikamah Subuki   +3 more
doaj   +1 more source

Marginal Discrepancy and Internal Fit of Bi-Layered and Monolithic Zirconia Fixed Dental Prostheses: An In Vitro Study

open access: yesApplied Sciences, 2023
This in vitro study evaluated the influence of restoration design (bi-layered vs. monolithic) and manufacturing technique on the marginal discrepancy and internal fit of 3-unit zirconia fixed dental prostheses (FDPs).
Majed M. Alsarani   +4 more
doaj   +1 more source

Infrared confocal imaging for inspection of flaws in yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) [PDF]

open access: yes, 2011
Custom made medical yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) components require a high standard of machining and inspection techniques to ensure high reliability of the manufactured parts. Due to heat generated during machining processes,
Weston, Nick   +17 more
core   +1 more source

Assessment and comparison of retention of zirconia copings luted with different cements onto zirconia and titanium abutments: An in vitro study

open access: yesThe Journal of Indian Prosthodontic Society, 2016
Aim: The purpose of this in vitro study was to assess and compare the retention of zirconia copings luted with different luting agents onto zirconia and titanium abutments.
Neelima Sreekumar Menon   +4 more
doaj   +1 more source

Effects of Impurity Content on the Sintering Characteristics of Plasma-Sprayed Zirconia [PDF]

open access: yes, 2007
Yttria-stabilized zirconia powders, containing different levels of SiO2 and Al2O3, have been plasma sprayed onto metallic substrates. The coatings were detached from their substrates and a dilatometer was used to monitor the dimensional changes they ...
Paul, S.   +9 more
core   +1 more source

Effect of Speed Sintering on Low Temperature Degradation and Biaxial Flexural Strength of 5Y-TZP Zirconia

open access: yesMolecules, 2022
Translucent zirconia is becoming the material of choice for the esthetic restorative material. We aimed to evaluate the surface structure, phase determination, translucency, and flexural strength of 5Y-TZP Zirconia (Katana STML Block and Disc) between ...
Suchada Kongkiatkamon   +1 more
doaj   +1 more source

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