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A Cluster Modelling Study of Conductivity of Yttria-Stabilized Zirconia
MRS Proceedings, 1992AbstractOn the basis of a previously described structural model for the Yttria-Stabilized Zirconia, the conductivity for this material can be calculated. A fixed number of clusters is generated in a structure of 70×28 polyhedra to simulate different Y contents in the structure.
DEPERO, Laura Eleonora +2 more
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Vanadia reactions with yttria stabilized zirconia
Journal of Applied Physics, 1988The reaction of vanadia films with yttria stabilized single-crystal cubic and polycrystalline cubic-tetragonal zirconias was studied using Rutherford backscattering (RBS) and x-ray diffraction, with some selected depth profiling studies. Vandium on zirconia readily oxidizes at 500 °C to form vanadia films.
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Spectroscopic investigation of the electronic structure of yttria-stabilized zirconia
Physical Review Materials, 2018The electronic structure and optical properties of yttria-stabilized zirconia are investigated as a function of the yttria content using multiple experimental and theoretical methods, including electron energy-loss spectroscopy, Kramers-Kronig analysis to obtain the optical parameters, photoelectron spectroscopy, and density functional theory.
Thomas Götsch +4 more
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Yttria-stabilized Zirconia with beige colour
2018Zirconia is a very versatile advanced ceramic that offers an interesting combination of thermal, chemical, electrical, mechanical and optical properties which are uncommon to find in ceramic materials and therefore is used in several applications. INNOVNANO is one of the main Zirconia powders suppliers in the market with potential clients for beige YSZ
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Nanoindentation examination of yttria-stabilized zirconia (YSZ) crystal
Journal of Alloys and Compounds, 2007Abstract The paper clarifies the specific mechanical properties of single crystal YSZ through applying the nanoindentation examination and the finite element analysis with theoretical ultrasonic measurements. The obtained results demonstrate that the lack of precise determination of the Poisson's ratio results in the significant discrepancy between ...
Masaki Fujikane +4 more
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On the conduction pathway for protons in nanocrystalline yttria-stabilized zirconia
Physical Chemistry Chemical Physics, 2009In this communication we elucidate a microstructural picture of proton conduction in nano-crystalline yttria-stabilized zirconia at low temperatures (Kim et al. Adv. Mater., 2008, 20, 556). Based on careful analysis of electrical impedance spectra obtained from samples with grain sizes of approximately 13 and approximately 100 nm under both wet and dry
Sangtae, Kim +6 more
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Raman Investigation of the Nitridation of Yttria‐Stabilized Tetragonal Zirconia
Journal of the American Ceramic Society, 2003Raman spectroscopy has been used to obtain Raman spectra of yttria‐stabilized tetragonal zirconia subject to surface nitridation induced by contact with zirconium nitride. Raman spectra recorded from regions at increasing distance from the source of nitridation have been used to obtain diffusion profiles from samples treated at ...
G. DEGHEHGHI, T. J. CHUNG, SERGO, VALTER
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EXAFS Studies of Yttria Stabilized Zirconia
1984Yttria stabilized zirconia is a well known solid electrolyte which exhibits fast anion conduction at elevated temperatures. Below 1200° C pure zirconia (ZrO2) is monoclinic, but forms a stabilized cubic phase with the fluorite structure in a solid solution with 9.4 to 24 mole percent Y2O3.
A. I. Goldman +4 more
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Phase stability of scandia–yttria-stabilized zirconia TBCs
Surface and Coatings Technology, 1998Abstract The evolution in phase composition resulting from 1400°C ageing of ZrO 2 samples stabilized by ∼4–7 mol.% each of Y 2 O 3 (YSZ), Sc 2 O 3 (ScSZ), or a mixture of Sc 2 O 3 –Y 2 O 3 (SYSZ) was studied by synchrotron radiation X-ray diffraction (SR XRD) using whole powder pattern fitting (WPPF), a recently proposed Rietveld-based method for
Leoni, Matteo +2 more
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In Vitro Aging of Yttria‐Stabilized Zirconia
Journal of the American Ceramic Society, 1989Yttria‐stabilized zirconia was aged in distilled water, saline, and Ringer's solution for 140, 304, and 453 d. The significant decreases in strength (13% to 22%) is attributed to the phase transformation of zirconia from tetragonal to monoclinic. The effect of aging stabilized zirconia in physiological media is still unresolved.
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