نتایج جستجو برای: barium hexaferrite
تعداد نتایج: 8577 فیلتر نتایج به سال:
The effect of non-magnetic oxides such as Al2O3, TiO2 and ZnO on the microwave absorption properties magnetoplumbite barium hexaferrite (BaFe11.8Co0.2O19) is analyzed. Barium nanoparticles are synthesized through sol-gel auto-combustion method. BaFe11.8Co0.2O19-Al2O3, BaFe11.8Co0.2O19-TiO2 BaFe11.8Co0.2O19-ZnO composites in a 1:1 ratio mechanical mixing heat treatment. epoxy fabricated with 50%...
Broadband electrodynamic response of single-crystalline lead-substituted barium hexaferrite Ba1-xPbxFe12O19 is studied at temperatures from 5 to 300 K in the range 1 Hz 240 THz that includes radio, sub-terahertz, terahertz and infrared frequencies altogether spans over 14 frequency decades. Discovered phenomena include relaxational radio-frequency dynamics domains domain walls, temperature-unst...
Samples of BaFe12O19 M-type barium hexaferrite with partial iron substitution by zirconium ions (concentration up to 10 at.%) have been synthesized and investigated. Studies crystal features, phase composition, magnetic properties were carried out using X-ray diffraction, Mössbauer spectroscopy, VSM respectively. The presence limited heterovalent isomorphism the 2Fe3+ → Zr4+ + Fe2+ mechanism wa...
Thin hexagonal barium hexaferrite particles synthesized using the microemulsion technique were studied. A water-in-oil reverse microemulsion system with cetyltrimethylammonium bromide (CTAB) as a cationic surfactant, n-butanol as a co-surfactant, n-hexanol as a continuous oil phase, and an aqueous phase were used. The microstructural and magnetic properties were investigated. The particles obta...
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