Results 211 to 220 of about 914,133 (243)

Properties of Yttrium Oxide Ceramics

Journal of the American Ceramic Society, 1957
The 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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The Kinetics of the Chlorination of Yttrium Oxide

Metallurgical and Materials Transactions B, 2009
The chlorination kinetics of Y2O3 with chlorine to produce YOCl was studied by thermogravimetry over a temperature range from 575 °C to 975 °C. The influence of convective mass transfer into the boundary layer surrounding the sample, gaseous diffusion into the sample pores, partial pressure of chlorine, and temperature on the reaction rate were ...
J.P. Gaviría, A.E. Bohé
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Sintering and recrystallization of yttrium oxide

Refractories, 1972
The sintering of pure yttrium oxide was studied in the range 1800–2100°C with a soak of up to 30 h. The kinetics of densification and grain growth were studied during sintering, and the corresponding activation energy levels were calculated.
L. B. Borovkova, E. S. Lukin, D. N. Poluboyarinov   +2 more
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Spectra of europium-doped yttrium oxide and yttrium vanadate phosphors

Czechoslovak Journal of Physics, 1978
The 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, A. H. Eid, A. Abdel Kader   +2 more
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Synthesis of europium-doped yttrium hydroxide and yttrium oxide nanosheets

Journal of Materials Science, 2007
A 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, Manickam Sivakumar, Kyuichi Yasui, Toru Tuziuti, Teruyuki Kozuka, Yasuo Iida   +5 more
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Effect of N2 plasma on yttrium oxide and yttrium–oxynitride dielectrics

Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, 2004
In this article, we report the effect of nitrogen plasma, during and after deposition, on nitrogen incorporation into yttrium oxide dielectric films. Films are deposited using a yttrium β-diketonate precursor (Y(tmhd)3) introduced downstream from a O2 or N2 plasma. The precursor acted as a significant source of oxygen, and only small amounts of N (&
D. Niu, R. W. Ashcraft, C. Hinkle, G. N. Parsons   +3 more
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Thermal Expansion of Yttrium Oxide and of Magnesium Oxide with Yttrium Oxide

Journal of the American Ceramic Society, 1964
T. H. NIELSEN, M. H. LEIPOLD
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Effect of yttrium on the formation, microstructure and high-temperature oxidation resistance of the oxide film on the surface of FeCr alloy

Surface and Coatings Technology, 2023
Zhentao Yuan
exaly  

On the luminescence characteristics of Pr3+ in yttrium oxysulfide and yttrium oxide

Journal of Applied Spectroscopy, 1975
T. V. Babkina, L. S. Gaigerova, M. I. Gaiduk, V. F. Zolin, L. N. Zorina, N. P. Soshchin   +5 more
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Plasma Etching Behavior of SF6 Plasma Pre-Treatment Sputter-Deposited Yttrium Oxide Films

Coatings, 2020
Pi-Chuen Tsai, Shih-Yung Huang, Wei-Kai Wang   +2 more
exaly