Results 91 to 100 of about 5,849 (219)

Production, stability and properties of ultrafine MgAl2O4 (spinel) particles stabilized Mg–3Ca alloy foams

Journal of Materials Research and Technology
The present work reports the synthesis and mechanical behavior studies of Mg–3Ca alloy foams stabilized by ultrafine MgAl2O4 (spinel) particles. The MgAl2O4 particles was created in-situ in the Mg–3Ca alloy melt through the reaction of Mg, Al and O ...
Dipak Bhosale, K. Georgy, Manas Mukherjee, G.S. Vinod Kumar   +3 more
doaj   +1 more source

Magnetic properties of titanomagnetites containing spinel (MgAl2O4).

Journal of geomagnetism and geoelectricity, 1981
Magnetic properties of titanomagnetites containing spinel have been studied. Variations of magnetization at room temperature and Curie point have been measured as a function of α, the mole fraction of ulvospinal in titanomagnetite series, and β, the mole fraction of spinel. Magnetization at 20°C and Curie point decrease with increasing α and β.
openaire   +2 more sources

A comparative study on photodegradation of industrial dyes using alkaline earth metal spinel photocatalysts

European Journal of Materials
The sol-gel auto combustion technique was employed to synthesize nanocrystalline alkaline earth metal (M = Mg, Ca) spinel aluminate (MAl2O4) and ferrite (MFe2O4) photocatalysts. Subsequently, XRD, FT-IR, SEM, TEM, BET method, and UV-DRS were performed to
Thanit Tangcharoen
doaj   +1 more source

Noncontact atomic force microscopy study of the spinel MgAl2O4(111) surface

Beilstein Journal of Nanotechnology, 2012
Based on high-resolution noncontact atomic force microscopy (NC-AFM) experiments we reveal a detailed structural model of the polar (111) surface of the insulating ternary metal oxide, MgAl2O4 (spinel).
Morten K. Rasmussen, Kristoffer Meinander, Flemming Besenbacher, Jeppe V. Lauritsen   +3 more
doaj   +1 more source

Self-Propagating High Temperature Synthesis of TiB2–MgAl2O4 Composites

Metals, 2017
Metal borides are widely used as heat-insulating materials, however, the range of their application in high-temperature conditions with oxidative medium is significantly restricted.
Nina Radishevskaya, Olga Lepakova, Natalia Karakchieva, Anastasiya Nazarova, Nikolai Afanasiev, Anna Godymchuk, Alexander Gusev   +6 more
doaj   +1 more source

Synthesis of Hercynite under Air Atmosphere using MgAl2O4 Spinel

Medžiagotyra, 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   +1 more source

Impact of Cobalt Doping on the Structural, Optical, and Dielectric Properties of MgAl₂O₄ Spinel Material. [PDF]

ACS Omega, 2023
Ullah K, Khan SA, Zaman A, Sarker MR, Ali A, Tirth V, Alsuhaibani AM, Algahtani A, Al-Mughanam T, Refat MS, Sahrani S, Abrar M.   +11 more
europepmc   +1 more source

Catalytic Pyrolysis of Naphtha on SHS Catalysts

Eurasian Chemico-Technological Journal, 2010
High yield of light olefins by catalytic pyrolysis of naphtha on spinel-based catalysts is reported. The yields of ethylene and propylene reach over 50% and are at least 10% and 5% higher respectively than the yield using thermal Pyrolysis, under the ...
G. Xanthopoulou, G. Vekinis
doaj   +1 more source

Solid-State Reaction Synthesis of MgAl₂O₄ Spinel from MgO-Al₂O₃ Composite Particles Prepared via Electrostatic Adsorption. [PDF]

ACS Omega, 2023
Tran AT, Tran VT, Nguyet NTM, Luong AT, Le TV, Phuc NHH.   +5 more
europepmc   +1 more source

3D Printing of MgAl₂O₄ Spinel Mesh and Densification Through Pressure-Less Sintering and Hot Isostatic Pressing. [PDF]

3D Print Addit Manuf, 2022
Adumbumkulath A, Shin C, Acharya GS, Biswas P, Sirisala M, Johnson R, Gade P.   +6 more
europepmc   +1 more source