in the present work, the synthesis of barium hexaferrite (bafe12o19) nanoparticles in thepresence of a large excess amount of oh− anions by the hydrothermal method in the presence and absence of surfactants such as sodium dodecyl benzene sulfonate and triton x-114 was reported. the optimized temperature in the absence of surfactant was determined (200 °c) and then barium hexaferrite nanoparticl...

nanocrystalline particles of barium hexaferrite has been prepared by the sol–gel auto- combustion method using iron and barium nitrate with a ba:fe molar ratio of 1:10. the effect of fuel such as citric acid and aspartic acid was investigated on the structure and magnetic properties of nanoparticles. the results revealed that the formation of barium hexaferritefine particles is influenced by mo...

Abstract The effect is reported of substituting the non-magnetic Zn 2+ cations with magnetic Ni cations, and Fe 3+ Al in Ba 0.5 Sr 1.5 11.92 0.08 O 22 on resulting properties. Y-type hexaferrite powders were synthesized by citric acid sol-gel auto-combustion, followed appropriate thermal annealing. saturation magnetization values ( M s ) a field 50 kOe 36 emu/g 30 at 4.2 K 300 K, respectively. ...

A single phased Y-type hexagonal ferrite Sr2Co1.7Mg0.3Fe11.2Sn0.4Zn0.4O22 was synthesized by the sol–gel auto combustion method. Structural and magnetic properties of this composition of Y-type hexagonal ferrite have been investigated. The X-ray diffraction (XRD) patterns confirm single phase Y-type hexagonal ferrite and various parameters such as lattice constants and cell volume have been cal...

Understanding ultrafast magnetization dynamics on the microscopic level is of strong current interest due to potential for applications in information storage. In recent years, spin-lattice coupling has been recognized as essential dynamics. Magnetoelectric multiferroics type II possess intrinsic correlations among magnetic sublattices and electric polarization $(P)$ through coupling, enabling ...

This paper focuses on the loading and release studies of tetracycline as model drug from spherical aggregates of micron size (approx. 1.2 μm in diameter) of barium hexaferrite (BaO·6Fe2O3) synthetized from wet chemical sol-gel method via spray drying. BaO·6Fe2O3 aggregates were characterized using x-ray diffraction and scanning electron microscopy. The load capacity of BaO·6Fe2O3 systems was re...

Microwave ferrites require high coercivity for their use as microwave absorbers. Strontium hexaferrite is one of the best material due to its magnetic properties , high coercivity, large unilateral magnetic anisotropy and very low cost in comparison to others make it suitable for the use as microwave components specifically microwave absorber .Strontium nano hexa ferrites were successfully synt...

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