Results 51 to 60 of about 229,191 (387)

Construction of Nanostructured Glass-Zirconia to Improve the Interface Stability of Dental Bilayer Zirconia

open access: yesNanomaterials, 2023
Bilayer zirconia restoration is one of the most commonly used restorations in dental practice, but the high frequency of the cohesive/adhesive fracture of veneered porcelain is still a problem.
Ming Zhou   +8 more
doaj   +1 more source

Surface microstructural changes of spark plasma sintered zirconia after grinding and annealing [PDF]

open access: yes, 2016
Spark plasma sintered zirconia (3Y-TZP) specimens have been produced of 140 nm 372 nm and 753 nm grain sizes by sintering at 1250 °C, 1450 °C and 1600 °C, respectively.
Akhtar, Farid   +5 more
core   +2 more sources

Effect of Al2O3 Sandblasting Particle Size on the Surface Topography and Residual Compressive Stresses of Three Different Dental Zirconia Grades

open access: yesMaterials, 2021
This study investigated the effect of sandblasting particle size on the surface topography and compressive stresses of conventional zirconia (3 mol% yttria-stabilized tetragonal zirconia polycrystal; 3Y-TZP) and two highly translucent zirconia (4 or 5 ...
Hee-Kyung Kim, B. Ahn
semanticscholar   +1 more source

Catalytic coatings on steel for low-temperature propane prereforming to solid oxide fuel cell (SOFC) application [PDF]

open access: yes, 2009
Catalyst layers (4–20 lm) of rhodium (1 wt%) supported on alumina, titania, and ceria–zirconia (Ce0.5Zr0.5O2) were coated on stainless-steel corrugated sheets by dip-coating in very stable colloidal dispersions of nanoparticles in water.
Alphonse, Pierre, Ansart, Florence
core   +2 more sources

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.
Bergström   +10 more
core   +3 more sources

Wear Resistance, Color Stability and Displacement Resistance of Milled PEEK Crowns Compared to Zirconia Crowns under Stimulated Chewing and High-Performance Aging

open access: yesPolymers, 2021
Recently, polyetheretherketone (PEEK) has been introduced to the dental market as a high-performance and chemically inert biomaterial. This study aimed to compare the wear resistance, abrasiveness, color stability, and displacement resistance of zirconia
Simone Shah Abhay   +7 more
semanticscholar   +1 more source

Translucency evaluation of an ultra-translucent monolithic zirconia and a super translucent multilayer zirconia: a pilot study on the thickness effect

open access: yesAnnals of Medicine, 2021
Introduction The increasing application of zirconia as an aesthetic material has led to an evolution with improvement on its optical properties [1]. Nowadays, zirconia presents a compatible translucency with natural teeth.
Ana Filipa Pereira   +5 more
doaj   +1 more source

Electrode polarization at the Au, O2(g)/yttria stabilized zirconia interface. Part II: electrochemical measurements and analysis [PDF]

open access: yes, 1991
The impedance of the Au, O2 (g) / yttria stabilized zirconia interface has been measured as function of the overpotential, temperature and oxygen partial pressure. At large cathodic overpotentials (η < −0.1 V) and large anodic overpotentials (η > +0.1 V)
Boukamp, B.A.   +2 more
core   +3 more sources

Mechanism of reduced sintering temperature of Al2O3–ZrO2 nanocomposites obtained by microwave hydrothermal synthesis [PDF]

open access: yes, 2018
A novel method to obtain Al2O3–ZrO2 nanocomposites is presented. It consists of the co-precipitation step of boehmite (AlO(OH)) and ZrO2, followed by microwave hydrothermal treatment at 270 °C and 60 MPa, and by calcination at 600 °C.
Ganin, Alexey   +7 more
core   +1 more source

Differential Healing Patterns of Mucosal Seal on Zirconia and Titanium Implant

open access: yesFrontiers in Physiology, 2019
Zirconia implants have become an alternative to titanium implants due to several advantages. The zirconia implant is relatively esthetic and highly resistant to bacteria.
Dong-Joon Lee   +6 more
doaj   +1 more source

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