Results 241 to 250 of about 55,131 (281)

The structural and electrical comparison of Y2O3 and Ti-doped Y2O3 dielectrics

Ceramics International, 2017
A Ti-doped Y2O3(Y2Ti2O5) dielectric on polycrystalline silicon followed by rapid thermal annealing results in improved characteristics including a higher effective dielectric constant, higher breakdown electric field, lower electron trapping rate, and larger charge-to-breakdown when compared with Y2O3.
Ming Ling Lee, Chyuan Haur Kao, Hsiang Chen, Chan Yu Lin, Yu Teng Chung, Kow Ming Chang   +5 more
openaire   +1 more source

Highly efficient tri-phase TiO2–Y2O3–V2O5 nanocomposite: structural, optical, photocatalyst, and antibacterial studies

Journal of Nanostructure in Chemistry, 2021
Faisal Mukhtar, Tauseef Munawar, M. Nadeem, Muhammad Naveed ur Rehman, Sana Batool, Murtaza Hasan, M. Riaz, Khalil ur Rehman, F. Iqbal   +8 more
semanticscholar   +1 more source

Significant Enhanced Optical Parameters of PVA-Y2O3 Polymer Nanocomposite Films

Journal of Inorganic and Organometallic Polymers and Materials, 2021
Z. Alrowaili, T. A. Taha, Karam S. El‐Nasser, Hossam Donya   +3 more
semanticscholar   +1 more source

Hydrothermal synthesis of Y2O3 coated Y2O3:Eu3+ nanotubes for enhanced photoluminescence properties

Materials Research Bulletin, 2015
Abstract Novel Y 2 O 3 coated Y 2 O 3 :Eu 3+ nanotubes with different coating ratios were synthesized successfully by a facile two-step process, including hydrothermal synthesis of Y(OH) 3 coated Y(OH) 3 :Eu 3+ as precursors and then calcination of them at 1000 °C for 2 h. X-ray diffraction patterns and field emission scanning electron microscope
Linhui Gao, Guangfa Wang, Hongliang Zhu, Weijie Zhou, Guofu Ou   +4 more
openaire   +1 more source

Preparation and Characteristics of B2O3 – SiO2 – Bi2O3 – TiO2 – Y2O3 Glasses and Glass-Ceramics

Silicon, 2021
A. AL-Baradi, E. Wahab, K. Shaaban
semanticscholar   +1 more source

Photo- and radiation-induced preparation of Y2O3 and Y2O3:Ce(Eu) nanocrystals

Journal of Nanoparticle Research, 2012
A convenient method for preparation of pure and doped yttrium oxide was developed, which is based on irradiation of solutions containing yttrium nitrate and ammonium formate with UV light or accelerated electrons. Solid phase formed under irradiation was consequently calcined at 500 °C or higher temperatures to obtain nanocrystalline yttrium oxide ...
Václav Čuba, Tereza Pavelková, Jan Bárta, Vítězslav Jarý, Martin Nikl, Ivo Jakubec   +5 more
openaire   +1 more source

Optical Properties of SiO2 – TiO2 – La2O3 – Na2O – Y2O3 Glasses and A Novel Process of Preparing the Parent Glass-Ceramics

Silicon, 2021
A. El-Rehim, E. Wahab, M. Halaka, K. Shaaban   +3 more
semanticscholar   +1 more source

Synthesis and characterization of Y2O3-ZrO2 and Y2O3-CeO2-ZrO2 precursor powders

Journal of the European Ceramic Society, 1996
Abstract Thixotropic gels of the precursor powders of the titled compounds have been prepared by the addition of oxalic acid to the mixed solutions of metal salts at room temperature (≈ 27 °C). The clear sols of yttrium-zirconyl oxalate (YZO) and yttrium-cerium-zirconyl oxalate (YCZO) gelled within a few hours and were oven-dried at 40 °C.
T. Settu, R. Gobinathan
openaire   +1 more source

Phase transition temperature of ZrO2-Y2O3 solid solutions (2.4–6 mol% Y2O3)

Solid State Ionics, 1997
The Tss + Fs → Ts phase transition temperature of ZrO2-Y2O3 solid solutions containing 2.4–6 mol% Y2O3 was investigated on the basis of the electrical conductance data obtained from sintered samples. The above phase transition temperature t (°C) could be expressed as a function of the Y2O3 content X (mol%) as: t = −243.21871 {ln(lnX)}2−982.92793 {ln(ln
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Synthesis of Y2O3 Nanocrystals and the Effect of Nanocrystalline Y2O3 Supports on Ni/Y2O3 Catalysts for Oxidative Steam Reforming of Ethanol

Chemistry Letters, 2006
Abstract Y2O3 nanocrystals of tunable morphology and size have been successfully synthesized; the mobility of surface oxygen species on Y2O3 nanocrystals is found, for the first time, to increase with the decrease of the crystal size and to significantly affect the catalytic performances of Ni/Y2O3 catalysts for oxidative steam reforming
Sun, G., Hidajat, K., Kawi, S.
openaire   +1 more source