Results 11 to 20 of about 38,396 (204)

Structural characteristics of MgAl2O4 spinel [PDF]

open access: yes, 2023
Magnesium aluminate spinel (MgAl2O4) is a material with good mechanical, chemical, and thermal properties, low dielectric permeability and loss tangent. Based on those properties, MgAl2O4 has found a significant application in refractory ceramics, ceramics windows, integrated electronic devices, etc.
Peleš Tadić, Adriana   +7 more
core   +9 more sources

Síntese do espinélio MgAl2O4 via "sol-gel" Synthesis of MgAl2O4 spinel via "sol-gel"

open access: yesCerâmica, 2005
O espinélio aluminato de magnésio MgAl2O4 é um material que apresenta uma combinação de propriedades de grande interesse tecnológico, tais como alto ponto de fusão (2135 ºC), alta resistência ao ataque químico e ao choque térmico, baixa constante ...
A. L. Heck   +5 more
doaj   +2 more sources

Sonochemical preparation of high surface area MgAl2O4 spinel

open access: yesUltrasonics Sonochemistry, 2009
High surface area MgAl(2)O(4) has been synthesised by a sonochemical method. Two kinds of precursors were used, alkoxides and nitrates/acetates and in both cases nanostructured MgAl(2)O(4) was obtained. The effect of the addition of a surfactant during the sonication, cetyl trimethyl ammonium bromide, was also investigated.
TROIA, ADRIANO   +2 more
openaire   +3 more sources

Micro-arc oxidation (MAO) synthesized MgAl2O4 spinel-integrated coatings on Mg alloys: multidimensional exploration of biodegradation, biocompatibility, and osseointegration

open access: yesJournal of Materials Research and Technology
The application of micro-arc oxidation (MAO) synthesized magnesium aluminate (MgAl2O4) spinel-integrated coatings on Mg alloys has great potential for orthopedic implantats, because such a coating improves biodegradation resistance, which is an important
Jun Feng   +6 more
doaj   +2 more sources

Synthesis of Hercynite under Air Atmosphere using MgAl2O4 Spinel [PDF]

open access: yesMedžiagotyra, 2015
In this paper, the effect of MgO and MgAl2O4 spinel addition on the formation of hercynite phase was studied. For this reason, the stoichiometric mixtures of hematite and calcined alumina with various amounts of MgO were used.
Sasan Otroj
doaj   +2 more sources

First-principles calculation of the phonon spectrum of MgAl2O4 spinel [PDF]

open access: yesPhysical Review B, 2002
The phonon spectrum of a MgAl2O4 spinel has been calculated from first principles using density-functional theory. The spinel was perfectly ordered with space group Fd3m. The five Raman active and four infrared active modes allowed by symmetry are umambiguously identified. Agreement with available Raman, infrared, and inelastic neuron scattering dat is
de Wijs, G.A.   +3 more
openaire   +3 more sources

Controlled Synthesis and Enhanced Photocatalytic Performance of MgAl<sub>2</sub>O<sub>4</sub> Spinel Nanopowders for Environmental Applications. [PDF]

open access: yesChemistryOpen
A simple solid‐state route was employed to synthesize MgAl2O4 spinel nanopowders with high photocatalytic efficiency. The obtained nanomaterial achieved 95% degradation of Rhodamine B under Xe lamp irradiation, demonstrating its potential as an efficient photocatalyst for wastewater purification. Nanopowders of magnesium aluminate spinel (MgAl2O4) were
Taoudi Y   +8 more
europepmc   +2 more sources

Thermodynamics of Mg-Al Order-Disorder Reaction in MgAl2O4-Spinel: Constrained by Prolonged Annealing Experiments at 773-1123 K. [PDF]

open access: yesMolecules, 2021
MgAl2O4-spinel has wide industrial and geological applications due to its special structural and physical–chemical features. It is presumably the most important endmember of complex natural spinel solid solutions, and therefore provides a structural ...
Ma Y, Bao X, Liu X.
europepmc   +2 more sources

Exploring Antibacterial Properties of Mechanochemically Synthesized MgAl<sub>2</sub>O<sub>4</sub> Spinel Nanoparticles for Dental and Medical Applications. [PDF]

open access: yesInt J Mol Sci
Magnesium aluminate spinel nanoparticles (MgAl2O4-S-NPs) represent a promising class of nanoceramics with potential biomedical applications due to their physicochemical stability and antimicrobial properties.
Vega Jiménez AL   +5 more
europepmc   +2 more sources

Synthesis of magnesium aluminate spinel doped TiO2 from magnesite waste [PDF]

open access: yesArchives of Metallurgy and Materials, 2022
Magnesium aluminate spinel (MgAl2O4) is an important refractory material of magnesia origin. It is formed by the reaction of magnesium and aluminum oxides.
N. Canikoğlu
doaj   +1 more source

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