Results 201 to 210 of about 3,767 (242)

Microwave sintering of cubic zirconia

Ceramics International, 2001
Microwave processing is of considerable interest because of its potential applications in the ceramic industry. The present investigation describes the technique for the sintering of yttria stabilised cubic zirconia. Significant advantage in terms of higher density of the ceramics at lower heat work is noted compared to the conventional radiant heat ...
D.D. Upadhyaya, A. Ghosh, K.R. Gurumurthy, Ram Prasad   +3 more
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Mechanical loss of cubic zirconia

Journal of Alloys and Compounds, 2000
Cubic zirconia can be stabilized by doping with lower valent oxides such as Y2O3 or CaO. Oxygen vacancies are then created as charge compensating defects. Mechanical loss measurements were performed in the temperature range 300–1600 K using both free decaying (3 Hz, 3 kHz) and forced vibrations (10−2–10 Hz).
Weller, M., Damson, B., Lakki, A.
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Structural Transformation in Cubic Zirconia

Journal of the American Ceramic Society, 1987
The structure of CaO‐stabilized cubic zirconia has been investigated by X‐ray diffraction at high temperatures and pressures up to 1000°C and ∼35 GPa, using a diamond‐anvil cell interfaced with aYAG laser heating system. At ∼1000°C and 15 GPa, the cubic phase transforms directly into an orthorhombic phase with the PbCl
Subba Rao Usha Devi, Li Chung Ming, Murli H. Manghnani   +2 more
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Stability of cubic zirconia and of stoichiometric zirconia nanoparticles

Physics of the Solid State, 2006
Using the electron density functional method, it is shown that the oxygen sublattice of cubic zirconia is unstable with respect to random displacements of oxygen atoms, which results in general instability of bulk cubic zirconia at low temperatures.
V. G. Zavodinsky, A. N. Chibisov
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Growth-controlled cubic zirconia microstructure in zirconia–titania nanolaminates

Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, 2002
Zirconia microstructure selection (phase and crystallographic orientation) was studied in sputter-deposited multilayer films consisting of nanocrystalline ZrO2 and amorphous TiO2. The goal was to understand the mechanism for ZrO2 microstructure selection as a function of nanolaminate architecture (number of interfaces and ZrO2 and TiO2 layer thickness)
J. D. DeLoach, C. R. Aita, C.-K. Loong
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ChemInform Abstract: NITRIDE‐STABILIZED CUBIC ZIRCONIA

Chemischer Informationsdienst, 1978
AbstractDie kubische Hochtemperaturphase von ZIO, wird nicht nur durch Oxid‐Zusätze, sondern auch durch Nitride stabilisiert: 10‐30 rnol% AIN, Si3N4, TiN oder ZrN bewirken ein Ansteigen des Molenbruchs der kubischen ZrO,‐Phase auf 0.3 ‐ 0.75, 1.5 mol‐% Mg3N2 erhöhen ihn auf 1.0.
N. CLAUSSEN, R. WAGNER, L. J. GAUCKLER, G. PETZOW   +3 more
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Optical properties of cubic stabilized zirconia

Solid State Communications, 1992
Optical absorption across the fundamental edge and the associated photoluminescence, have been studied in single crystals of yttrium stabilized zirconia (YSZ) of varying yttrium concentration. The results allow discrimination of a region of intrinsic transitions (above 5.2 eV) from a low energy region, where disorder-induced transitions are dominating.
Camagni P, Galinetto P, Samoggia G, Zema, N   +4 more
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Synthesis of stable nanocrystalline cubic zirconia

Materials Research Bulletin, 2000
Abstract Nanocrystalline pure cubic zirconia was prepared by precipitation in polymer matrix. The average particle size obtained by this method was smaller than that obtained by aqueous coprecipitation. X-ray diffraction showed that the cubic form is stable in air up to 1173 K and partially stable in an inert argon atmosphere up to 1273 K.
S. Roy, J. Ghose
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ChemInform Abstract: SILICON ON CUBIC ZIRCONIA

Chemischer Informationsdienst, 1983
AbstractBez. der Herstellung von IC‐Halbleiter‐Bauteilen hoher Geschwindigkeit, Dichte und Strahlungsbeständigkeit wurde das epitaktische Wachstum von Si‐Einkristall‐Filmen ( l um) auf(lOO)‐, (l l0)‐ und (l l l)‐Flächen von Y2O3‐ stabilisierten ZrO2‐Einkristallen durch CVD mit SiH4‐Pyrolyse (950‐l075°C) untersucht.
H. M. MANASEVIT, I. GOLECKI, L. A. MOUDY, J. J. YANG, J. E. MEE   +4 more
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Radiation damage in cubic-stabilized zirconia

Journal of Nuclear Materials, 2013
Abstract Cubic yttria-stabilized zirconia (YSZ) can be used for nuclear applications as an inert matrix for actinide immobilization or transmutation. Indeed, the large amount of native oxygen vacancies leads to a high radiation tolerance of this material owing to defect recombination occurring in the atomic displacement cascades induced by fast ...
Jean-Marc Costantini, François Beuneu, William J. Weber   +2 more
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