Results 81 to 90 of about 161 (97)
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Nd–Co substituted strontium hexaferrite powders with enhanced coercivity
Materials Research Bulletin, 2012Graphical abstract: Display Omitted Highlights: ► Sr{sub 1−x}Nd{sub x}Fe{sub 11−x}Co{sub x}O{sub 19} was prepared by sol–gel auto-combustion method with 0 ≤ x ≤ 0.4. ► Coercivity increases 11% with 0.2 Nd–Co substitution, reaching a value of 68.9 A/m. ► The appearance of two magnetic orderings is noticed in susceptibility measurements.
C.A. Herme, P.G. Bercoff, S.E. Jacobo
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Microwave absorption properties of Ti–Zn substituted strontium hexaferrite
Journal of Materials Science: Materials in Electronics, 2015Strontium hexaferrites with the composition of SrFe12−xTix/2Znx/2O19 (x = 0–2.5 in steps of 0.5) were synthesized using chlorides by means of co-precipitation route. The structural, magnetic and microwave absorption properties of the samples were surveyed.
Aminreza Baniasadi +4 more
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Preparation and properties of strontium hexaferrite/polyurethane magnetic coatings
Progress in Organic Coatings, 2012Abstract Strontium hexaferrite nanoparticles (NPs) were prepared by co-precipitation of strontium and ferric ions in sodium hydroxide solution. The SrFe12O19 NPs were characterized by X-ray powder diffraction, transmission electron microscopy and vibrating sample magnetometer.
X. Tang +5 more
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Structure and Magnetic Properties of Co-Substituted Strontium Hexaferrite
Advanced Materials Research, 2014The strontium hexaferrite (SrFe12O19) and Co-substituted strontium hexaferrite (SrCoFe11O19) were prepared by ceramic method. The milled mixture of Fe2O3, SrCO3 and CoO powders were calcined at 1100°C and pellets sintered at 1300°C in air. The crystal structure, morphology and magnetic properties of samples have been investigated by X-ray diffraction ...
Pannipa Chaya +2 more
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Synthesis, Structures, and Multiferroic Properties of Strontium Hexaferrite Ceramics
Journal of Electronic Materials, 2013Simultaneous occurrence of large ferroelectricity and strong ferromagnetism has been observed in strontium hexaferrite (SrFe12O19) ceramics. Strontium hexaferrite powders with hexagonal crystal structures have been successfully synthesized through the co-precipitation precursor method using strontium nitrate and ferric nitrate as starting materials ...
Guolong Tan, Xiuna Chen
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Microstructure and Magnetic Properties of Anisotropic Strontium Hexaferrite Powders
IEEE Transactions on Magnetics, 2019Anisotropic strontium hexaferrite powders were prepared by solid-state method with subsequent magnetic field alignment and annealing. The microstructure of the powders was investigated using X-ray diffraction and scanning electron microscopy to understand the effect of the process on magnetic properties, magnetic texture, particle size, and morphology ...
A. R. Dilipan +6 more
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Current tunable barium and strontium hexaferrite millimeter wave resonators
2017 IEEE International Young Scientists Forum on Applied Physics and Engineering (YSF), 2017This paper reports the experimental results on resonance frequency tuning of a single crystal M-type hexaferrite resonators with an applied current. The tuning arises from nonlinear magnetoelectric interaction which changes both saturation magnetization and uniaxial anisotropy field.
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2018
In order to improve the performance of ferrite based permanent magnet materials, the evolution of magnetic properties with increasing particle size of anisotropic SrFe12O19 nano-platelets is investigated, allowing elucidation of the stable single domain (SSD) size.
H. Gjørup, Frederik +4 more
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In order to improve the performance of ferrite based permanent magnet materials, the evolution of magnetic properties with increasing particle size of anisotropic SrFe12O19 nano-platelets is investigated, allowing elucidation of the stable single domain (SSD) size.
H. Gjørup, Frederik +4 more
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Preparation of strontium hexaferrite nanoparticles from oxide glasses
Doklady Chemistry, 2007D. D. Zaitsev +3 more
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