Results 91 to 100 of about 4,525 (206)
Electrochemical determination of the Gibbs energy of formation of MgAl2O4
The standard Gibbs energy of formation of the spinel MgAl2O4 from component oxides, MgO and α-Al2O3, has been determined in the temperature range 900 to 1250 K using a solid-state cell incorporating single-crystal CaF2 as the solid electrolyte.
Jayadevan, Kampurath P +2 more
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The MgAl2O4 spinel doped with Eu2+ ions powder phosphor was prepared at temperature as low as 500 oC using the combustion route. A structural property of the powder was characterized by X-ray diffraction (XRD).
Jain, U. K., Dongre, J. K.
core +3 more sources
Effect of Rare Earth on Inclusions and Fatigue Properties of 20CrMnTi Gear Steel [PDF]
To deeply investigate the effect of rare earth (La/Ce) on inclusions and fatigue properties of 20CrMnTi gear steel, the inclusions in 20CrMnTi and 20CrMnTi-RE gear steel treated with 0.002 7% rare earth were analyzed and characterized by various ...
Wang Li, Liu Chengbao, Li Haoqiu, Wang Yi, Sun Zonghui, Liu Chunwei, Yang Chaoyun, Fu Zhihao
doaj +1 more source
The formation of NbB2–MgAl2O4 composites from the MgO-added thermite-based reaction systems was investigated by self-propagating high-temperature synthesis (SHS). Two thermite mixtures, Nb2O5/B2O3/Al and Nb2O5/Al, were, respectively, adopted in Reactions
Chun-Liang Yeh, Yin-Chien Chen
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First-principles calcns. using d. functional theory and the pseudopotential method were performed for the crystal structure and phase relation of MgAl2O4 and the binary components (MgO and a-Al2O3). Calcns.
With, de, G. +2 more
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An Antenna with Good Electrical Properties and Artistic Shape for Lampshade
An improved transparent antenna based on transparent ceramic MgAl2O4 with artistic shape which can be used as lampshade is presented in this paper. A great peak gain and good pattern can be achieved by choosing the property shape and optimizing location ...
Zhou Chang, Yu Yang, Ji Chen
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Raman scattering in hexagonal GaN epitaxial layer grown on MgAl2O4 substrate
The room temperature Raman spectra of the hexagonal GaN epilayer grown on [111]- oriented MgAl2O4 substrate were measured in various backscattering and right angle scattering geometries.
Zhang W +5 more
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NOVEL SELF-ASSEMBLY OF CRYSTALLINE MgAl2O4 NANOSTRUCTURES PROMOTED BY ANNEALING A GOLD OVERLAYER ON A (111) MgAl2O4 SUBSTRATE [PDF]
The solid state dewetting characteristics of thin gold films sputtered onto (111) MgAl2O4 substrates were investigated. Prior research done on this system reported discovering the self-assembly of intricately shaped nanostructures, consisting of a ...
Majdi, Tahereh
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We report the structural, morphological and photoluminescence properties of BaAl2O4/MgAl2O4/BaCO3:x% Eu3+ (0 ≤ x ≤ 1.5) mixed phases (hereafter called BMB:x% Eu3+) synthesized by a citrate sol–gel method.
A. Bele +5 more
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Evolution of MgAl2O4 crystals in Al-Mg-SiO2 composites
The present study analyzes the morphological transformations of reaction products i.e., MgO, MgAl2O4 occurring during the reaction between SiO2 and Al-Mg alloy in Al-Mg-SiO2 composite processed by the liquid metallurgy technique.
B Pai (13749952) +3 more
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