Results 121 to 130 of about 21,258 (284)

Crystal‐field splitting strength of U‐6d orbitals in NaUO3, KUO3 and RbUO3

open access: yesJournal of Synchrotron Radiation, EarlyView.
High‐energy resolved fluorescence‐detected X‐ray absorption spectroscopy at the uranium L3 edge and relativistic quantum chemistry calculations are combined to study in detail the uranium valence electronic structure in NaUO3, KUO3 and RbUO3. The impact of the structural distortion of the oxygen octahedra around uranium on the contribution of uranium ...
Simon Orlat   +9 more
wiley   +1 more source

Microstructure and mechanical properties of bulk yttria-partially-stabilized zirconia [PDF]

open access: yes
A commercially available bulk 4.5 mole percent yttria-(Y2O3) partially stabilized zirconia (PSZ) was studied by light microscopy, X-ray analysis, microhardness measurement, and fracture toughness testing.
Maier, R. D.   +2 more
core   +1 more source

The Solution Precursor Plasma Spraying Process for Making Zirconia Based Electrolytes [PDF]

open access: yes, 2011
Ceramic layers, such as yttria-stabilized zirconia or scandia-stabilized zirconia, used for functional layers of solid oxide fuel cells, i.e. the gas tight oxygen ion conductive electrolyte or as ceramic component in the porous cermet anode, were ...
Ansar, Asif   +4 more
core  

Particle size effects on the processing of textured PMN‐PZT ceramics

open access: yesInternational Journal of Applied Ceramic Technology, EarlyView.
Successful production of high‐quality crystallographically textured ceramics for piezoelectric applications is critically dependent upon a careful balance between several tape process characteristics: minimization of the particle size distribution, sufficient powder dispersion, shear‐thinning rheology to promote maximum alignment of template particles,
Beecher H. Watson III   +5 more
wiley   +1 more source

Highly dense translucent CeO2‒δ·(RE, Y, Sm, La)2O3 (RE = Dy, Gd) high‐entropy ceramics for multi‐wavelength emission

open access: yesInternational Journal of Applied Ceramic Technology, EarlyView.
Abstract This study reports the synthesis of translucent, high‐entropy oxide (HEO) ceramics with the composition CeO2‒δ·(RE, La, Sm, Y)2O3 (RE = Dy, Gd), and a single‐phase bixbyite structure (space group Ia‐3). The materials were prepared by reactive sintering at 1600°C in air, achieving translucency through optimized ball milling of precursor oxides ...
Avnee Chauhan   +5 more
wiley   +1 more source

Color stability of precolored and extrinsically colored monolithic multilayered polychromatic zirconia: Effects of surface finishing and aging

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose To explore the impact of zirconia types, coloring methods, and surface finishing on the color stability of monolithic multilayered polychromatic zirconia after artificial aging, including thermocycling and simulated toothbrushing. Materials and Methods Eighty square‐shaped zirconia samples were divided into 2 types (M3Y‐TZP and M6Y‐PSZ)
Feras M. Abounassif   +5 more
wiley   +1 more source

Effect of artificial aging on fracture toughness and hardness of 3D‐printed and milled 3Y‐TZP zirconia

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose This study aimed to evaluate the impact of artificial aging on the fracture toughness and hardness of three‐dimensional (3D)‐printed and computer‐aided design and computer‐aided manufacturing (CAD‐CAM) milled 3 mol% yttria‐stabilized tetragonal zirconia polycrystals (3Y‐TZP). Materials and Methods Forty bar‐shaped specimens (45 × 4 × 3 
Abdulaziz Alhotan   +5 more
wiley   +1 more source

Effect of sintering cycle on the strength and translucency of multilayered zirconia

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose A newly introduced sintering protocol promises to offer higher translucency while not significantly compromising the flexural strength of the material. However, the effect of the novel sintering protocol has not been thoroughly validated.
Kedith Sawangsri   +3 more
wiley   +1 more source

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