Journal ArticleDOI
Lattice Parameters and Density for Y2O3‐Stabilized ZrO2
R. P. Ingel,David Lewis +1 more
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TLDR
In this paper, lattice parameter and density data were compiled for Y2O3-Stabilized ZrO2, both from the literature and from experimental measurements, and the data were described very well over a wide range of composition by the model of Aleksandrov et al., which assumes Y substitution for Zr in the unit cell with compensating anion vacancies.Abstract:
Lattice parameter and density data were compiled for Y2O3-Stabilized ZrO2, both from the literature and from experimental measurements. The data are described very well over a wide range of composition by the model of Aleksandrov et al., which assumes Y substitution for Zr in the unit cell with compensating anion vacancies. Effects are noted in two-phase cubic-tetragonal materials which indicate significant lattice strains in the two-phase materials.read more
Citations
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Lattice Parameters, Ionic Conductivities, and Solubility Limits in Fluorite-Structure MO2 Oxide [M = Hf4+, Zr4+, Ce4+, Th4+, U4+] Solid Solutions
TL;DR: In this article, a generalized relationship between dopant size and ionic conductivity in binary systems of MO2 oxides was shown, illustrating that the smaller the difference between the dopant ionic radius and the critical dopant radius, the higher the conductivity.
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La2Zr2O7 formation and oxygen reduction kinetics of the La0.85Sr0.15MnyO3, O2(g)|YSZ system
TL;DR: In this article, the authors investigated the nucleation and growth of lanthanum zirconate (LZO) between (001) single crystals of 9.5 mol% Y203-stabilized ZrO2 (YSZ) and porous La0.85Sr0.15MnyO3±δ (y=0.95…1.10) perovskites.
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Growth and characterization of Sc-doped EuO thin films
TL;DR: In this paper, the preparation of 3D transition metal-doped EuO thin films by molecular beam epitaxy is investigated using the example of Sc doping, which leads to an enhancement of the Curie temperature to up to 125
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The effect of grain size, porosity and yttria content on the thermal conductivity of nanocrystalline zirconia
TL;DR: In this paper, the thermal diffusivity and conductivity of nanocrystalline (gain size < 100 nm) zirconia has not yet been determined and the measured values are compared with the thermal conductivities of commercially available air plasma sprayed (APS) and electron beam physical vapor deposited (EB-PVD) coatings.
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Transparent compact ceramics: Inherent physical issues
TL;DR: In this article, the authors focus on inherent optical properties, governed by composition and the state of the crystallattice, and on the interference of these properties with the microstructural optimization of transparentceramics (e.g., the dependence of the tolerable pore size or grain size on the refractive index).
References
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Journal ArticleDOI
Phase relationships in the zirconia-yttria system
TL;DR: In this article, the conditions for the retention of a zirconia-rich tetragonal phase at ambient temperature were established and the existence of a miscibility gap, closed below the solidus temperature, in the yttria-rich solid solution region was proposed.
Journal ArticleDOI
The crystal structure of tetragonal ZrO2
TL;DR: In this paper, a high-temperature x-ray diffraction study of tetragonal ZrO/sub 2/, a number of previously unreported reflections, which are inconsistent with a body-centered lattice, hare been observed.
Journal ArticleDOI
Phase Equilibria and Ordering in the System ZrO2‐Y2O3
TL;DR: The phase diagram for the fluorite-type ZrO/sub 2/--Y/sub 6/O/Sub 12/12/12/, and the phase diagram of the system was redetermined with a high-temperature x-ray furnace, precise lattice parameter measurements, and a hydrothermal technique as mentioned in this paper.
Journal ArticleDOI
Subsolidus Phase Equilibria and Ordering in the System ZrO2-Y2O3
C. Pascual,Pedro Durán +1 more
TL;DR: The subsolidus phase relations in the entire system ZrO2-Y2O3 were established using DTA, expansion measurements, and room and high-temperature X-ray diffraction as mentioned in this paper.
Journal ArticleDOI
The Zirconia‐Yttria System
TL;DR: The phase relationship in the zirconia-yttria system has been established up to 2000°C as discussed by the authors, and the mechanism of stabilization by an oxide of the yttria type is discussed in relation to the crystal structure of these two oxides.