Results 71 to 80 of about 28,306 (283)

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

Atomic Scale Insight Into High Voltage Degradation Mechanism in YSZ Electrolyte for Solid Oxide Electrolyzer Applications

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The evolution of yttria‐stabilized zirconia (YSZ) electrolyte microstructure after testing at progressively high voltages was captured at the micro‐ and atomic‐scale levels to determine the operational boundaries of a solid oxide electrolysis cell (SOEC).
Tian Liu   +9 more
wiley   +1 more source

Properties of a Pressureless Sintered 2Y-TZP Material Combining High Strength and Toughness

open access: yesCeramics
Yttria stabilized zirconia materials are frequently used in mechanical engineering and biomedical applications. Demanding loading conditions require materials combining a high level of strength and fracture toughness. A ready-to-press alumina doped 2 mol%
Frank Kern, Bettina Osswald
doaj   +1 more source

Interactions Between O‐Phospho‐L‐Serine and Trivalent Metal Ions: Studies in Solution and Solid State

open access: yesEuropean Journal of Inorganic Chemistry, EarlyView.
The interaction between the phosphorylated amino acid O‐phospho‐L‐serine and trivalent ions of f‐elements such as La3+, Eu3+, and Lu3+, supplemented by Y3+, has been studied in aqueous media. Nuclear magnetic resonance (NMR) spectroscopy in solution and in the solid state examined complex formation from the ligand perspective, while time‐resolved laser‐
Jonas Kunigkeit   +7 more
wiley   +1 more source

Effect of glazed and polished 3Y-TZP and 5 mol% yttria-stabilized partially stabilized zirconia on fibroblast behavior: In vitro study

open access: yesThe Journal of Indian Prosthodontic Society
Aim: To evaluate and compare the viability, proliferation, and adhesion of HGFs on glazed and polished surfaces of 3 mol% yttria-stabilized tetragonal zirconia (3Y-TZP) and 5 mol% yttria-stabilized partially stabilized zirconia (5Y-PSZ).
Mahima Ahuja   +4 more
doaj   +1 more source

Fracture Resistance of Zirconia Oral Implants In Vitro: A Systematic Review and Meta-Analysis [PDF]

open access: yes, 2020
Various protocols are available to preclinically assess the fracture resistance of zirconia oral implants. The objective of the present review was to determine the impact of different treatments (dynamic loading, hydrothermal aging) and implant features (
Bethke, Annalena   +6 more
core   +1 more source

Hole Polaronic Confinement in (111) Yttria‐Stabilised Zirconia

open access: yesSmall, EarlyView.
Ultrathin epitaxial YSZ(111) films unexpectedly develop p‐type mixed conduction and amplified electromechanical coupling under oxidizing conditions. Combined transport measurements and first‐principles modeling reveal that nanoscale confinement and ordered dopant–vacancy complexes stabilize localized O 2p hole polarons at the surface. A canonical ionic
Milica Vasiljevic   +15 more
wiley   +1 more source

Laser sealing and thermal shock resistance of 6.5 wt% yttria Partially stabilized zirconia plasma sprayed layers [PDF]

open access: yesEngineering and Technology Journal, 2009
Laser sealing of zirconia-6.5 wt% yttria partially stabilized zirconia (YPSZ) plasmasprayed layers were examined for both plan views and transverse sections.
Mohammed Jasim Kadhim
doaj   +1 more source

Transition of Ion Diffusion Mechanism in BaZr0.1Ce0.7Y0.1Yb0.1O3‐δ Electrolyte Under Real Operating Conditions

open access: yesSmall Methods, EarlyView.
Ion diffusion in the benchmark BZCYYb electrolyte is revealed to dynamically transition under realistic PCFC operating conditions. As temperature decreases, the electrolyte shifts from oxygen‐ion to proton‐dominant conduction via grain‐boundary hydrogenation and in situ hydration, even without external humidification.
Zhixin Luo   +8 more
wiley   +1 more source

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