Results 81 to 90 of about 97 (97)
Some of the next articles are maybe not open access.
Stabilization of Cubic Zirconia by Aluminum Nitride
Journal of the American Ceramic Society, 1989Cubic ZrO2 is stabilized at room temperature by the addition of AIN. The percentage of c‐ZrO2 in the mixture of c‐ZrO2 and m‐ZrO2 increases linearly with the addition of up to 20 mol% AIN and decreases thereafter. Stabilization becomes complete at 50 mol% AIN. The lattice spacing of the cubic phase gradually expands up to 20 mol% AIN.
openaire +2 more sources
Translucency of IPS e.max and cubic zirconia monolithic crowns
The Journal of Prosthetic Dentistry, 2018Although several monolithic zirconia ceramics have recently been introduced, the need for improved optical properties remains. The newest cubic-zirconia has been claimed to have optimal translucency characteristics for esthetic restorations.This in vitro study evaluated the optical properties of novel cubic ultratranslucent (UT) and supertranslucent ...
Baldissara, Paolo +5 more
openaire +4 more sources
Intrinsic vacancies in cubic-zirconia bulk and surface
Journal of Alloys and Compounds, 2010Abstract Formation of charged (neutral) vacancies of bulk (surface) cubic-ZrO 2 is calculated from density functional theory, and compared with available experiments. Relationships among vacancy formation energy, electron and element chemical potentials are established within a wide range of oxygen chemical potentials. The +2 (−2) oxygen (zirconium)
Wei Zhong Ding +9 more
openaire +3 more sources
Diffuse scattering in yttria-stabilized cubic zirconia
Journal of Solid State Chemistry, 1992Abstract We have used a position-sensitive detector (PSD) system to make measurements of the diffuse X-ray scattering on a cubic Y 2 O 3 -stabilized zirconia, Zr 0.61 Y 0.39 O 1.805 , in far greater detail than has hitherto been reported. In addition to the fairly prominent diffuse peaks visible in 〈1 1 0〉 sections that have been the center of ...
B. D. Butler +3 more
openaire +2 more sources
Electronic Structure and Dielectric Properties of Cubic Zirconia
Japanese Journal of Applied Physics, 2003The electronic structure and dielectric properties of cubic zirconia (ZrO2) are investigated by the linear muffin-tin orbital method. The band structure and density of states of ZrO2 are calculated by the local density approximation and GW approximation.
Shoji Kobayashi +2 more
openaire +2 more sources
Solubility of Mn stabilized cubic zirconia nanostructures
Journal of Materials Science: Materials in Electronics, 2013Mn-stabilized cubic zirconia nanostructures (Zr1−xMnxO2, x = 0.10, x = 0.15 and x = 0.20) have been prepared using chemical precipitation method for different doping concentrations. The prepared powders have been characterized by X-ray diffractometer for structural analysis, vibrating sample magnetometer for analyzing magnetic properties, scanning ...
R. Saravanan +3 more
openaire +2 more sources
Research on crystal growth and defects in cubic zirconia
Journal of Crystal Growth, 1986Abstract The crystal growth and defects in cubic zirconia grown by the skull melting method have been investigated. The distribution coefficients of stabilizers Y 2 O 3 and CaO in the crystal were greater than 1 and less than 1 respectively.
Jing Wang +5 more
openaire +2 more sources
Low Temperature Stability of Cubic Zirconia
physica status solidi (a), 2000A 9 mol% Y 2 O 3 -stabilized ZrO 2 specimen was annealed in boiling water for 1200 h, and the phase structure was examined by XRD and the chemical states of zirconium, yttrium and oxygen were examined by XPS. After annealing, the phase of the specimen remains entirely cubic, and the chemical states of the elements are not remarkably changed ...
openaire +2 more sources
Verification of Existence of Cubic Zirconia at High Temperature
Journal of the American Ceramic Society, 1962The existence of the high-temperature cubic form of ZrO/sub 2/ was verified with an x-ray diffractometer. The 200 and 002 doublet was taken as the best indicator of the phase change, and the tnansformation was found to occur at 2285 plus or minus 15 deg C with first order kinetics.
Carl F. Cline, Deane K. Smith
openaire +2 more sources
The relaxation dispersion of the ionic conductivity in cubic zirconias
Solid State Ionics, 1994Abstract The relaxation dispersion of the bulk ionic conductivity of cubic zirconias stabilized with yttria, calcia and magnesia has been investigated between 450 and 1200 K at frequencies ranging from 20 Hz to 1.2 GHz. The relaxation process is attributed to the diffusional polarization due to the short-range oxygen vacancy jumping in the crystal ...
Ludwig J. Gauckler +3 more
openaire +2 more sources