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Infrared Properties of Yttrium Oxide
Journal of the Physical Society of Japan, 1971By using a large solar furnace, yttrium oxide crystals were made by a fusion process, and their reflectivity was measured in the spectral region 700 to 10 cm -1 , Several reststrahlen bands extending from 600 to 240 cm -1 were found. From the reflectivity curve, the parameters of seven lattice vibrations were analysed, and the optical constants in a ...
Yutaka Nigara +2 more
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Spectra of europium-doped yttrium oxide and yttrium vanadate phosphors
Czechoslovak Journal of Physics, 1978The spectral distributions of the visible absorption and fluorescence emission under electron beam excitation of Eu3+-doped (Y2O3) and (YVO4) powders have been detected and analyzed. (Y2O3: Eu3+) has a cubicC crystal structure with a unit cell dimension a=10·61 A.
M. S. Elmanharawy +2 more
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Cathodoluminescence of yttrium oxide and yttrium and zinc silicate films
Journal of Applied Spectroscopy, 2011We have studied the cathodoluminescent properties of Y2SiO5:Ce, Zn2SiO4:Ti, Zn2SiO4:Mn, Y2O3:Eu thin films obtained by high-frequency magnetron sputtering. Based on measurements of the luminescence spectra, we have shown that the films can be used as luminophores with blue emission (Y2SiO5:Ce, Zn2SiO4:Ti), green emission (Zn2SiO4:Mn), and red emission (
O. M. Bordun +2 more
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Oxidation of Zirconium-Yttrium Alloys
Advances in X-ray Analysis, 1964AbstractThe phase and elemental distributions on zirconium alloys containing 5, 10, 25, 35, and 50 at.%. yttrium, oxidized in dry air at 1200 and 1600°C, have been studied by X-ray diffraction, fluorescence, and electron-microprobe techniques. Zirconium-yttrium alloys, which are entirely solid at 1200°C, and zirconium 5 and 25 at.% yttrium alloys ...
D. I. Phalen +2 more
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Cerium and yttrium oxide nanoparticles are neuroprotective
Biochemical and Biophysical Research Communications, 2006The responses of cells exposed to nanoparticles have been studied with regard to toxicity, but very little attention has been paid to the possibility that some types of particles can protect cells from various forms of lethal stress. It is shown here that nanoparticles composed of cerium oxide or yttrium oxide protect nerve cells from oxidative stress ...
David, Schubert +3 more
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Oxidative methane activation over yttrium stabilised zirconia
Chemical Communications, 2015Mechanism of C–H bond cleavage, involving electron transfer to adsorbed oxygen on YSZ by electronic structure calculations.
C S, Cooper, R J, Oldman, C R A, Catlow
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Thermochromic Behavior of Yttrium-Substituted Bismuth Oxides
ACS Applied Materials & Interfaces, 2019High-temperature thermochromic materials are poorly explored in fundamental research, let alone applied research, although these materials may be used as low-cost, intuitively usable sensing materials in an industrial environment. Yet, only few of these materials have been described systematically.
Xi Liu +2 more
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Synthesis of europium-doped yttrium hydroxide and yttrium oxide nanosheets
Journal of Materials Science, 2007A new approach has been developed for the preparation of Y(OH)3:Eu and Y2O3:Eu nanosheets using the sol–gel method and hydrothermal reactions. XRD patterns showed that the product was purely hexagonal-phase Y(OH)3. TEM images revealed that the nanosheets are square shaped (1 × 1 μm2) with a thickness of several tens of nanometers.
Atsuya Towata +5 more
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Preparation of Layered Yttrium Oxide by Hydrolysis of Yttrium Nitrate
Materials Science Forum, 2016Hydrolysis products of aqueous yttrium nitrates obtained by sol-gel method at room temperature, under atmospheric pressure without any templates and structure directing agents were investigated by thermal analysis combined with mass spectrometry of thermolysis products, XRD and scanning electron microscope with elemental EDS analyzer.
V.V. Avdin, E.P. Yudina, I.V. Krivtsov
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Properties of Yttrium Oxide Ceramics
Journal of the American Ceramic Society, 1957The cubic structure of yttrium oxide is stable to 1800°C. in air as indicated by petrographic, X‐ray, and differential thermal analyses. A change in lattice parameter of less than ±0.007 a.u. was observed on heating the oxide to 1800°C. The mean specific heat of Y 2 O 3
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