Results 1 to 10 of about 3,013 (143)

A 3‐year controlled clinical trial comparing high‐translucency zirconia (cubic zirconia) with lithium disilicate glass ceramic (e.max) [PDF]

open access: yesClinical and Experimental Dental Research, 2023
Introduction The rate of clinical success in veneers, under esthetics, has achieved a range of 18 months to 20 years. In a plethora of studies, it registers a success rate reaching 75% and even 100%.
Hiba A. Fawakhiri   +2 more
doaj   +2 more sources

TCP Doped with Metal Ions Reinforced with Tetragonal and Cubic Zirconia [PDF]

open access: yesBiomimetics, 2023
Ceramic biocomposites based on bioactive tricalcium phosphate doped with metal ions are a strategy for obtaining good biomimetics for human bone composition. Manufacturing with PMMA porogen also induces bone-like porosity morphology. The poor strength of
Vanessa M. Ferro   +4 more
doaj   +2 more sources

Characterization of Cubic Zirconia as a Lens Material Suitable for Autonomous Driving

open access: yesPhotonics, 2022
As the development of autonomous driving technology is now in full swing, the demand for miniaturized optical modules mounted on various sensors has increased.
Jae-Kun Lee   +4 more
doaj   +3 more sources

Optical, Structural, and Biological Characteristics of Rapid-Sintered Multichromatic Zirconia [PDF]

open access: yesBiomedicines
Background: To overcome the esthetic limitations of dental monolithic zirconia restorations, multichromatic systems were developed to combine improved structural integrity with a natural shade gradient that mimics the optical properties of natural teeth.
Minja Miličić Lazić   +5 more
doaj   +2 more sources

Nanocrystalline Cubic Phase Scandium-Stabilized Zirconia Thin Films

open access: yesNanomaterials
The cubic zirconia (ZrO2) is attractive for a broad range of applications. However, at room temperature, the cubic phase needs to be stabilized. The most studied stabilization method is the addition of the oxides of trivalent metals, such as Sc2O3 ...
Victor Danchuk   +8 more
doaj   +3 more sources

Hydrothermal synthesis of nano-size zirconia using commercial zirconia powder: process optimization through response surface methodology [PDF]

open access: yesHydrogen, Fuel Cell & Energy Storage, 2014
A hydrothermal method for preparation of nano-size zirconia has been studied to optimize the effective parameters (precursor concentration, temperature and time) using response surface methodology (RSM).
Ashkan Esmaeilifar   +2 more
doaj   +1 more source

A practical approach for the calculation of the activation energy of the sintering [PDF]

open access: yesScience of Sintering, 2016
Newly developed software for calculation of activation energy (Qs in the following) of sintering using the Wang and Raj model is presented. To demonstrate the practical potential of the software and to evaluate the behaviour of the Qs during the
Pouchly Vaclav, Hruby Jan, Maca Karel
doaj   +1 more source

Optical properties of new zirconia-based dental ceramics: literature review

open access: yesCerâmica, 2021
The first generation of polycrystalline zirconia-based ceramic used to produce dental prosthesis showed excellent mechanical behavior; however, its low translucency limited the indication for aesthetic monolithic restorations.
G. Pizzolatto, M. Borba
doaj   +1 more source

High temperature innovative zirconia-alumina ramming mass

open access: yesOpen Ceramics, 2023
Zirconia and high alumina ramming masses stand out as efficacious variants within the domain of unshaped refractories. In the interface between these materials, the utilization of transitional zirconia-alumina ramming mass is recommended.
Valeriy V. Martynenko   +3 more
doaj   +1 more source

Role of promoters over yttria‐zirconia supported Ni catalyst for dry reforming of methane

open access: yesEnergy Science & Engineering, 2023
Dry reforming of methane (DRM) bears great hope for the catalytic community as well as environmentalists for its potential to convert two greenhouse gases, CH4 and CO2, together into synthetic feedstock “syngas”.
Anis H. Fakeeha   +7 more
doaj   +1 more source

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