Results 81 to 90 of about 21,258 (284)

Shear Bond Strength of Colored and Sandblasted Zirconia to Ceramic Veneers Fabricated by the Pressing and Layering Techniques: An In Vitro Study

International Journal of Dentistry, 2023
Introduction. Porcelain-veneered zirconia (PVZ) restorations are increasingly used due to their optimal esthetics and high strength. However, chipping of porcelain limits the application of PVZ restorations.
Mahsa Abbasi, Behnaz Ebadian, Negin Aminianpour   +2 more
doaj   +1 more source

Pressure‐Assisted Ceramic Processing of Metal Halide Perovskites

Advanced Photonics Research, EarlyView.
This review critically assesses low‐temperature, pressure‐assisted ceramic processing as a pivotal technique to fabricate dense, polycrystalline wafers with precisely controlled macroscopic dimensions as well as microstructural properties. The aim is to bridge understanding between expert ceramists and halide perovskite specialists, highlighting the ...
Michael C. Brennan, Kyle G. Berry, Morris Olumba, Michael J. Carter, Tod A. Grusenmeyer, Christopher L. McCleese   +5 more
wiley   +1 more source

Shear Bond Strength of Porcelain to a Base-Metal Compared to Zirconia Core

Journal of Dental Biomaterial, 2017
Statement of Problem: Recent clinical results for Zirconia all-ceramic restorations have revealed that the fracture rate 6-15% of the Zirconia framework is so low and the core of Zirconia has high stability.
Abrisham SM, Fallah Tafti A, Kheirkhah S, Tavakkoli MA   +3 more
doaj  

A General Strategy for Bandgap Engineering Via Anion‐Lattice Doping in High‐Entropy Oxides

Advanced Science, EarlyView.
A generalizable strategy is developed leveraging facile anion‐lattice doping in high entropy materials to modulate the bandgap in high‐entropy metal oxides (HEMOs). By incorporating nitrogen into a single‐phase high‐entropy metal oxide/nitride (HEMO:HEMN) solid solution, a substantial bandgap reduction from 3.55 eV (HEMO) to ≈2.46 eV (HEMO:HEMN) is ...
Kevin Siniard, Juntian Fan, Meijia Li, Qingju Wang, Alexander S. Ivanov, Tao Wang, Sheng Dai   +6 more
wiley   +1 more source

Unveiling the Corrosion Mechanisms of High‐Entropy RETaO4 Through In Situ Observation

Advanced Science, EarlyView.
Composition‐property relationships in multi‐component RETaO4 are unveiled. In situ XRD/TEM and EBSD expose dynamic crystallization pathways of the dominant corrosion product (pyrochlore) and reaction‐diffusion corrosion mechanisms. La1/6Nd1/6Sm1/6Eu1/6Gd1/6Dy1/6TaO4 emerges as the optimal composition, combining minimal corrosion layer thickness with ...
Zeyu Chen, Yiling Huang, Fan Peng, Chucheng Lin, Wei Zheng, Xuemei Song, Yaran Niu, Yi Zeng   +7 more
wiley   +1 more source

Effect of microstructure and temperature on the erosion rates and mechanisms of modified EB PVD TBCs [PDF]

, 2009
Thermal barrier coatings (TBCs) have now been used in gas turbine engines for a number of decades and are now considered to be an accepted technology. As there is a constant drive to increase the turbine entry temperature, in order to increase engine ...
Murphy, K. S., Nicholls, J. R., Wellman, R. G.   +2 more
core   +1 more source

Vacancy Engineered Zero‐Valent Iron Steer Hydrogen Spillover toward Per‐ and Polychlorinated Organics Rapid Complete Dechlorination

Advanced Science, EarlyView.
Zero‐valent iron with a vacancy‐rich carbon shell and lattice Cu doping in Fe0 cores generates a dechlorination mechanism combining enhanced electron transfer and modulated H* spillover, which significantly lowers the energy barrier for dechlorinating low‐chlorinated intermediates, accelerates C─Cl bond dissociation, and then delivers breakthrough ...
Zimin Yan, Bin Wu, Zhiling Li, Tianyi Huang, Di Cao, Yunxia Zu, Shih‐Hsin Ho, Aijie Wang   +7 more
wiley   +1 more source

Nickel-Containing Ceria-Zirconia Doped with Ti and Nb. Effect of Support Composition and Preparation Method on Catalytic Activity in Methane Dry Reforming

Nanomaterials, 2020
Nickel-containing mixed ceria-zirconia oxides also doped by Nb and Ti have been prepared by a citrate route and by original solvothermal continuous flow synthesis in supercritical alcohols.
Mikhail Simonov, Yulia Bespalko, Ekaterina Smal, Konstantin Valeev, Valeria Fedorova, Tamara Krieger, Vladislav Sadykov   +6 more
doaj   +1 more source

Connecting Local Structure, Strain and Ionic Transport in the Fast Sodium Ion Conductor Na11+xSn2+xP1−xS12

Advanced Energy Materials, EarlyView.
Substitution by larger polyanions in the fast sodium ion conductor Na11+xSn2+xP1−xS12 leads to inhomogeneities in the local structure which induces micro strain. The observed strain correlates with higher local diffusivities at room temperature and a lowering of the activation barriers for local ionic jumps which is explained by a widening of ...
Oliver Maus, Bibek Samanta, Florian Schreiner, Kyra Strotmann, Martin A. Lange, Marvin A. Kraft, Matthias Hartmann, Niina Jalarvo, Michael Ryan Hansen, Wolfgang G. Zeier   +9 more
wiley   +1 more source

Amorphization of cubic zirconia by caesium-ion implantation

Philosophical Magazine Letters, 2000
Stabilized cubic zirconia is a promising candidate material for use as an inert fuel matrix for burning' excess Pu in light-water nuclear reactors. Zirconia is also considered to be an excellent nuclear waste form for direct geological disposal. Both applications are based on zirconia's high solubility for actinides, high chemical durability and high ...
L. M. Wang, Rodney C. Ewing, S. X. Wang
openaire   +2 more sources