Results 11 to 20 of about 10,946 (217)

Modeling the sintering trajectories of MgAl2O4 Spinel [PDF]

open access: yesScripta Materialia, 2021
Abstract Controlling microstructure and density of MgAl2O4 spinel is a crucial step in the elaboration of industrial ceramics products. Understanding the sintering characteristics is a key issue to optimize the mechanical and optical properties. In this paper, Olevsky's sintering model is used to simulate the sintering trajectories of spinel.
Kerbart, Gabriel   +3 more
openaire   +2 more sources

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

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

Thermal Shock analysis of MgO-MgAl2O4 Refractories Produced from Local MgAl2O4

open access: yesUluslararası Muhendislik Arastirma ve Gelistirme Dergisi, 2020
Üstün fiziksel, kimyasal ve termal özellikler sayesinde, spinel çimento, demir ve demir dışı metal endüstrilerinde kullanılan şekilli ve monolitik refrakterlerin üretiminde yaygın olarak kullanılan iyi bilinen bir refrakter hammaddedir. Bu çalışmada, magnezyum-spinel refrakter kompozitlerin termal şok özelliklerine yerli fused ve sinterlenmiş spinel ...
openaire   +3 more sources

Mechanisms of enhanced heterogeneous nucleation during solidification in binary Al-Mg alloys [PDF]

open access: yes, 2012
This is the post-print version of the Article. The official published version can be accessed from the link below - Copyright @ 2012 ElsevierThe mechanisms involved in the grain refinement of Al–Mg alloys through varying the Mg content and applying ...
Anson   +50 more
core   +1 more source

The phase composition and microstructural evolution of a novel MgO-C-Al-Si refractory used in bottom-blowing elements at high temperatures in flowing nitrogen

open access: yesJournal of Asian Ceramic Societies, 2021
A novel MgO-C-Al-Si refractory with low carbon content used in bottom-blowing elements was prepared, and its phase composition and microstructural evolution were investigated by XRD, SEM and EDS after being treated at 1200–1600°C in flowing nitrogen ...
Mingwei Yan   +4 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

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   +3 more sources

Perpendicular magnetic anisotropy at the Fe/MgAl$_2$O$_4$ interface: Comparative first-principles study with Fe/MgO [PDF]

open access: yes, 2018
We present a theoretical study on interfacial magnetocrystalline anisotropy for Fe/MgAl$_2$O$_4$. This system has a very small lattice mismatch at the interface and therefore is suitable for realizing a fully coherent ferromagnet/oxide interface for ...
Masuda, Keisuke, Miura, Yoshio
core   +3 more sources

Bias voltage effects on tunneling magnetoresistance in Fe/MgAl${}_2$O${}_4$/Fe(001) junctions: Comparative study with Fe/MgO/Fe(001) junctions [PDF]

open access: yes, 2017
We investigate bias voltage effects on the spin-dependent transport properties of Fe/MgAl${}_2$O${}_4$/Fe(001) magnetic tunneling junctions (MTJs) by comparing them with those of Fe/MgO/Fe(001) MTJs. By means of the nonequilibrium Green's function method
Masuda, Keisuke, Miura, Yoshio
core   +3 more sources

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