Results 31 to 40 of about 10,946 (217)

FABRICATION OF TRANSPARENT MgAl2O4 SPINEL CERAMICS BY PECS PROCESSING OF COMBUSTION - SYTHESIZED NANOPOWDERS

open access: yesActa Metallurgica Slovaca, 2019
Transparent MgAl2O4 ceramic could be found in a wide range of applications for both military and civil sector due to its high melting point, good mechanical properties, small refractive index (1.71) and its ability to allow light in range from UV to mid ...
Yen Ngoc Nguyen   +4 more
doaj   +1 more source

Strain-Induced Magnetic Anisotropy in Epitaxial Thin Films of the Spinel CoCr$_2$O$_4$ [PDF]

open access: yes, 2015
We show that the magnetic anisotropy in spinel-structure CoCr$_2$O$_4$ thin films exhibits a strain dependence in which compressive strain induces an out-of-plane magnetic easy axis and tensile strain an in-plane easy axis, exactly opposite to the ...
Blickenstorfer, Yves   +6 more
core   +2 more sources

A novel dual-strengthening technology combining external second phase nanoparticle method and hot compression deformation process in micro-alloyed medium carbon steel

open access: yesJournal of Materials Research and Technology, 2023
Herein, a novel dual-strengthening technology that combines the external second-phase nanoparticle addition method with the hot compression deformation tests was carried out to investigate the effects of surface-modified nanoparticles (NPs) and ...
Hao Guo   +4 more
doaj   +1 more source

Reactivity and microstructure evolution of a CoNiCrAlY/Talc cermet prepared by spark plasma sintering [PDF]

open access: yes, 2010
A mixture of CoNiCrAlY and talc powders is considered as a new candidate composition for abradable seal coating applications. Dense specimen having the composition of 1:20 weight ratio of talc with respect to CoNiCrAlY was prepared using the Spark Plasma
Estournès, Claude   +3 more
core   +3 more sources

Grain refinement efficiency of a new oxide-containing master alloy for aluminium casting alloys [PDF]

open access: yes, 2014
In this study, grain refinement efficiency of a new oxide master alloy based on MgAl2O4 was demonstrated on an A357 alloy. The grain size of the reference alloy was reduced by 50-60% with the addition of the master alloy and introduction of ultrasonic ...
Babu, NH   +3 more
core   +1 more source

Thermal stability and microstructure characterization of MgAl2O4 nanoparticles synthesized by reverse microemulsion method [PDF]

open access: yesMaterials Research, 2013
Magnesium aluminate (MgAl2O4) spinel nanoparticles were synthesized by reverse microemulsion process in cyclohexane by using two kinds of surfactants, n-amyl alcohol as cosurfactant and mixture of aluminic/magnesic salt aqueous solution as basic reagents.
Ping Fu   +5 more
doaj   +3 more sources

A first-principles study of tunneling magnetoresistance in Fe/MgAl2O4/Fe(001) magnetic tunnel junctions

open access: yes, 2012
We investigated the spin-dependent transport properties of Fe/MgAl2O4/Fe(001) magnetic tunneling junctions (MTJs) on the basis of first-principles calculations of the electronic structures and the ballistic conductance.
Kazutaka Abe   +4 more
core   +1 more source

Cluster expansion of multicomponent ionic systems with controlled accuracy: Importance of long-range interactions in heterovalent ionic systems [PDF]

open access: yes, 2014
We have been examining factors determining the accuracy of cluster expansion (CE), which is used in combination with many density functional theory (DFT) calculations.
Seko, Atsuto, Tanaka, Isao
core   +2 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   +1 more source

In situ layer formation on MgO–C refractories with different MgO grade by static and dynamic contact with liquid steel

open access: yesOpen Ceramics, 2023
Modern, high-quality steelmaking requires a comprehensive understanding of the behavior of refractories in service. Therefore, MgO–C refractories with different MgO grade were immersed once and twice into a steel melt at 1600 °C and 1680 °C, respectively,
Florian Kerber   +6 more
doaj   +1 more source

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