Crystallisation of BaFe12O19 hexagonal ferrite with an aid of B2O3 and the effects on microstructure and magnetic properties useful for permanent magnets and magnetic recording devices
References (61)
- et al.
IEEE Trans. Magn. MAG-18
(1982) - et al.
J. Magn. Magn. Mat.
(1986) IEEE Trans. Magn. MAG-23
(1987)- et al.
J. Magn. Magn. Mat.
(1987) - et al.
Japan. J. Appl. Phys.
(1989) Theorie du Magnetism
(1968)- et al.
IEEE Trans. Magn. MAG-23
(1987) - et al.
J. Magn. Magn. Mat.
(1987) J. Appl. Cryst.
(1978)
Ferrites
J. Magn. Magn. Mat.
IEEE Trans. Magn. MAG-7
J. Magn. Magn. Mat.
Adv. Ceram.
Phys. Chem. Glasses
J. de Phys. Colloq.
Glass Ceramics
Solid State Commun.
IEEE Trans. Magn. MAG-23
J. Magn. Magn. Mat.
J. Magn. Magn. Mat.
J. Magn. Magn. Mat.
J. Appl. Phys.
J. de Phys.
IEEE Trans. Magn. MAG-21
J. Magn. Magn. Mat.
J. Phys. D
J. Chem. Soc.
J. Appl. Chem. Biotechnol.
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2019, Materials Chemistry and PhysicsCitation Excerpt :In the late 1980s [12–14], our group has used crystallization of vitreous glasses such as BaOFe2O3B2O3 that yields ferrites and borates of small fibrils. In another experiment, using B2O3 as an additive, which promotes solid state reaction between BaO and Fe2O3, a selective phase of barium ferrite BaFe12O19 was made of tailored shapes [15]. Some studies had been carried by authors’ on the iron borate glasses with tailored magnetic as well as dielectric properties [16,17].
Structural, vibrational and surface analysis of Fe<inf>3</inf>BO<inf>6</inf> nanoplates synthesized by combustion method
2018, Journal of Molecular StructureCitation Excerpt :A nanoscale iron borate is rarely prepared except Fe3BO5 made as nanorods using a hydrothermal method [16], or a solution phase reaction [9], and Fe3BO6 spherical nanoparticles made from a rheological phase reaction [7]. Quite good numbers of studies are carried in authors' laboratory on the iron borate glasses [17–21], in which small fibrils precipitate as ferrites and/or borates on thermal annealing a glass specimen at moderate temperature (above the glass-transition temperature Tg) in air. The crystallites so obtained in general embed in a residual vitreous phase of a different electronic structure and refractive index.
Forming a Cr<sup>4+</sup>(3d<sup>2</sup>) spin doped Zr <inf>1-x</inf>Cr<inf>x</inf>O<inf>2</inf> (x ≤ 0.2) of small crystallites at moderate pressure: A spin-semiconductor
2013, Materials Chemistry and PhysicsCitation Excerpt :Unlike a trend shown at 295 K, a smaller Mc = 85.79 emu g−1 value lasts in smaller D = 5 nm crystallites (plates), possibly due to a larger contribution of uncompensated surface spins which do not align to the fields ≤60 kOe. In spite of a larger shape anisotropy (supposed to suppress Hc [35,36]) in the plates, a larger Hc = 100 Oe found relative to that in the cuboids (Hc = 29.1 Oe) is likely due to an effect of the uncompensated surface spins. In minimizing the total energy, the spins pin down at the surfaces in small crystallites so as to serve as a stable pinning barrier giving rise to a sample of the ideal single magnetic domains and in turn a maximal Hc.
Temperature dependent magnetic and dielectric properties of M-type hexagonal BaFe <inf>12</inf>O <inf>19</inf> nanoparticles
2012, Journal of Alloys and CompoundsCitation Excerpt :Moreover, distinctly from c-BFO, ZFC magnetization starts to decreases below ∼55 K in n-BFO sample; presence of defects in nanoparticles can cause such a decrease in magnetization at low temperatures. where p is the geometrical parameter (its value 0.48 for flake like particles) and Hb = 4πMs [15]. The calculated value of magnetic anisotropic constant (K) from Eq. (1) for different temperatures is shown in the Fig. 5.
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