Results 11 to 20 of about 3,718 (215)

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

Synthesis, characterization and thermal behaviour of Fe0.65Co0.35-MgAl2O4 and Fe0.65Ni0.35-MgAl2O4 nanocomposite powders [PDF]

open access: yesJournal of Materials Chemistry, 1997
Fe0.65Co0.35-MgAl2O4 and Fe0.65Ni0.35-MgAl2O4 nanocomposite powders are prepared by selective hydrogen reduction of monophasic oxide solid solutions synthesized by combustion in urea. The alloy particles, which are dispersed in the spinel matrix, are about 10 nm in size.
Quénard, Olivier   +3 more
openaire   +4 more sources

Effect of microporous Al2O3–MgAl2O4 content on the thermal shock resistance and molten steel purification performance of β-SiC whisker-reinforced Al2O3–MgAl2O4–C ceramic filters

open access: yesJournal of Materials Research and Technology
This study investigates the effect of microporous Al2O3–MgAl2O4 content on the phase composition, microstructures, mechanical properties, and purification performance for molten steel of Al2O3–MgAl2O4–C filters, conducted through XRD, SEM, EDS, immersion
Jinwen Song   +7 more
doaj   +2 more sources

Defects on the Surface of Ti-Doped MgAl2O4 Nanophosphor [PDF]

open access: yesNanoscale Research Letters, 2017
Ti-doped nano MgAl2O4 for white emission was synthesized by combustion method. Extrinsic Schottky defects, Al vacancies and Ti4+ dopant in Al sites, which are considered to be responsible for bluish-white emission, were observed by STEM on the surface of
Jaehyuk Lim   +4 more
doaj   +2 more sources

Highly Active and Stable Pd/MgAl2O4 Catalysts for Methane Catalytic Combustion

open access: yesAdvanced Energy & Sustainability Research
Mesoporous MgAl2O4 is synthesized via a novel sol–gel combustion method and the concentration of oxygen defects on the surface is modulated through varying the calcination temperature (850, 900, 1000, and 1100 °C).
Jie Li   +7 more
doaj   +2 more sources

Microstructural development in Al/MgAl2O4 in situ metal matrix composite using value-added silica sources

open access: yesScience and Technology of Advanced Materials, 2008
Al/MgAl2O4 in situ metal matrix composites have been synthesized using value-added silica sources (microsilica and rice husk ash) containing ~97% SiO2 in Al-5 wt.% Mg alloy.
Vadakke Madathil Sreekumar et al
doaj   +1 more source

THE EFFECT OF Mg-Al Wt% FOR PHASE FORMATION OF SPINEL MgAl2O4 PRODUCED BY METAL DISSOLVED METHOD

open access: yesJurnal Neutrino: Jurnal Fisika dan Aplikasinya, 2020
Synthesis of magnesium aluminate spinel powder (MgAl2O4, abbreviated as MA) were prepared by the liquid mixing method. The synthesis of MA involved Mg powders with various weight compositions (4.8; 10; 20; 30; 40; and 60%) and Al powders (95.2; 90; 80 ...
Chairatul Umamah   +2 more
doaj   +1 more source

<i>GenL</i>: an extensible fitting program for Laue oscillations and whole-pattern fitting. [PDF]

open access: yesJ Appl Crystallogr
We present GenL, a flexible program utilizing differential evolution within a genetic algorithm that can be used to simulate and/or fit X‐ray diffraction data from epitaxial thin films exhibiting Laue oscillations.GenL is a flexible program that can be used to simulate and/or fit X‐ray reflectivity and X‐ray diffraction data from epitaxial thin films ...
Ravensburg AL   +3 more
europepmc   +2 more sources

Synthesis and characterization of AlMgB14 hot pressed under different environments [PDF]

open access: yesScience of Sintering, 2017
AlMgB14 hot pressed under different environments from the elemental powders was investigated. The microstructure of the products was analyzed by scanning electron microscopy (SEM) with energy dispersive X-ray spectroscopy (EDX) and X-ray ...
Yumei Zhou   +5 more
doaj   +1 more source

Tính chất quang của bột huỳnh quang MgAl2O4 đồng pha tạp Cr3+ và Na+ được chế tạo bằng phương pháp đồng kết tủa

open access: yesTạp chí Khoa học Đại học Cần Thơ, 2022
Bột huỳnh quang MgAl2O4 đồng pha tạp Cr3+ và Na+ đã được nghiên cứu và chế tạo bằng phương pháp đồng kết tủa. Cấu trúc pha, hình thái, thành phần và các tính chất quang của mẫu đã được khảo sát bằng nhiễu xạ tia X (XRD), kính hiển vi điện tử quét phát ...
Nguyễn Thị Kim Chi   +5 more
doaj   +3 more sources

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