Reference : Experimental and theoretical investigation of SrFe12O19 nanopowder for permanent magn...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/2268/214255
Experimental and theoretical investigation of SrFe12O19 nanopowder for permanent magnet application
English
Abraime, Brahim [Materials and Nanomaterials Center, MAScIR (Moroccan Foundation for Advanced Science, Innovation and Research), > > > >]
Ait tamerd, Mohamed [Université Mohamed V, Rabat, Maroc > > > >]
Mahmoud, Abdelfattah mailto [Université de Liège > Département de chimie (sciences) > LCIS - GreenMAT >]
Boschini, Frédéric mailto [Université de Liège > > Plateforme APTIS >]
Abdelilah, Benyoussef [Materials and Nanomaterials Center, MAScIR (Moroccan Foundation for Advanced Science, Innovation and Research), > > > >]
Hamedoun, Mohammed [Materials and Nanomaterials Center, MAScIR (Moroccan Foundation for Advanced Science, Innovation and Research), > > > >]
Xiao, Yinguo []
El Kenz, Abdallah [Université Mohamed V, Rabat, Maroc > > > >]
Mounkachi, Omar [Materials and Nanomaterials Center, MAScIR (Moroccan Foundation for Advanced Science, Innovation and Research), > > > >]
28-Aug-2017
Ceramics International
Yes
[en] strontium M-type hexagonal ferrites ; Permanent magnet ; Magnetic properties ; Ab-initio calculations ; Mossbauer spectroscopy
[en] Strontium M-type hexagonal ferrites were synthesized at different calcination temperatures (800 °C, 1000 °C and 1100 °C) using sol-gel autocombustion method. Thermogravimetric analysis (TGA), X-ray diffraction (XRD), scanning electron microscopy (SEM), Mössbauer spectroscopy (MS) and superconducting quantum interference device magnetometer (SQUID) techniques were used to characterize crystal structure, phase composition, morphology and magnetic properties. TGA gives T = 800 °C as beginning of suitable calcination. Hexaferrite structure of single phase is obtained according to XRD results for all samples with crystallite size between 28 nm and 35 nm. SEM images show the growth of grain size with increasing of annealing temperature. (BH)max is calculated based on SQUID results and shows an enhancement between T = 800 °C and T = 1000 °C of 25%. The magnetic properties observed at low temperature are explained and confirmed by ab-initio calculations
Service public de Wallonie : Direction générale opérationnelle de l'économie, de l'emploi et de la recherche - DG06
RESIBAT n° 1510399
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/214255
10.1016/j.ceramint.2017.08.187

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