Results 1 to 10 of about 10,875 (240)

Preparation of strontium hexaferrite magnets from celestite and blue dust by mechanochemical route [PDF]

Journal of Mining and Metallurgy. Section B: Metallurgy, 2008
In the present investigation celestite (natural ore of strontium) and blue dust (iron ore fines) have been used for the preparation of strontium hexaferrite powder. The mechanical alloying process has been adopted to prepare strontium hexaferrite powder.
Tiwary R.K., Narayan S.P., Pandey O.P.
doaj   +3 more sources

Different Stages of Phase Transformation in the Synthesis of Nanocrystalline Sr-Hexaferrite Powder Prepared by a Gaseous Heat Treatment and Re-Calcination Method [PDF]

Nanomaterials, 2022
In this paper, the phase transformation in a gaseous heat treatment and re-calcination (GTR) process for preparing nanocrystalline Sr-hexaferrite powder using methane (CH4) was studied.
Ramin Dehghan, Seyyed Ali Seyyed Ebrahimi, Zahra Lalegani, Bejan Hamawandi   +3 more
doaj   +2 more sources

Synthesis of Sandwiched Composite Nanomagnets by Epitaxial Growth of Fe₃O₄ Layers on SrFe₁₀Cr₂O₁₉ Nanoplates in High-Boiling Organic Solvent [PDF]

Nanomaterials, 2022
Herein, we demonstrate the synthesis of sandwiched composite nanomagnets, which consist of hard magnetic Cr-substituted hexaferrite cores and magnetite outer layers.
Evgeny O. Anokhin, Danila A. Deyankov, Zitian Xia, Ekaterina S. Kozlyakova, Vasily A. Lebedev, Anatolii V. Morozov, Daniil A. Kozlov, Roy R. Nygaard, Dmitry I. Petukhov, Lev A. Trusov   +9 more
doaj   +2 more sources

Phase Transitions in Magneto-Electric Hexaferrites. [PDF]

ACS Omega, 2022
Hexaferrites have long been the object of extensive studies because of their great possibility for applications-permanent magnets, high-density recording media, microwave devices, in biomedicine, to name but a few. Lately, many researchers' efforts have been focused on the existence of the magneto-electric effect in some hexaferrite systems and the ...
Koutzarova T, Kolev S, Krezhov K, Georgieva B.   +3 more
europepmc   +3 more sources

Thin Films of BaM Hexaferrite with an Inclined Orientation of the Easy Magnetization Axis: Crystal Structure and Magnetic Properties [PDF]

Nanomaterials
Thin (~50 nm thick) BaM hexaferrite (BaFe12O19) films were grown on (1–102) and (0001) cut α-Al2O3 (sapphire) substrates via laser molecular beam epitaxy using a one- or two-stage growth protocol. The advantages of a two-stage protocol are shown.
Boris Krichevtsov, Alexander Korovin, Vladimir Fedorov, Sergey Suturin, Aleksandr A. Levin, Andrey Telegin, Elena Balashova, Nikolai Sokolov   +7 more
doaj   +2 more sources

Room-Temperature Ferrimagnet with Frustrated Antiferroelectricity: Promising Candidate Toward Multiple-State Memory

Physical Review X, 2014
On the basis of first-principles calculations, we show that the M-type hexaferrite BaFe_{12}O_{19} exhibits frustrated antiferroelectricity associated with its trigonal bipyramidal Fe^{3+} sites.
P. S. Wang, H. J. Xiang
doaj   +3 more sources

Obtaining and Properties of Hexaferrite BaFe12O19 for High-coercivity Permanent Magnets and Substrates Microstrip Microwave Devices of mm-Range [PDF]

Журнал нано- та електронної фізики, 2015
In the work by ceramic technology produced samples isotropic and anisotropic polycrystalline hexaferrite BaFe12O19 and investigated their properties.
V.G. Kostishyn, V.V. Korovushkin, D.N. Chitanov, Yu.M. Korolev   +3 more
doaj   +3 more sources

The Structure of Nanometric Ferrite’s Films after Ion Implantation [PDF]

East European Journal of Physics, 2012
The results of study of hexaferrite Ва and Bi-Gd garnet films on gadolinium gallium garnet substrates are presented. In the result of ion-beam induced deposition the amorphous paramagnetic films of Ва-hexaferrite and Bismuth gadolinium garnet film are ...
Valeriy Kirichenko, Olga Kovalenko
doaj   +2 more sources

Electromagnetic properties of composite filaments with ferromagnetic fillers for 3D printing [PDF]

E3S Web of Conferences, 2023
The paper presents the results of a study of composite materials based on the polymer acrylonitrile styrene acrylate (ACA) and filler M-type hexaferrite (BaFe12O19). The results of X-ray diffractometry of hexaferrite powder are presented. The porosity of
Vertoprakhov I. A., Kuleshov G. E., Yelyasov A. N., Bad’in A. V.   +3 more
doaj   +1 more source

Preparation of Barium-Hexaferrite/Gold Janus Nanoplatelets Using the Pickering Emulsion Method

Nanomaterials, 2021
Janus particles, which have two surfaces exhibiting different properties, are promising candidates for various applications. For example, magneto-optic Janus particles could be used for in-vivo cancer imaging, drug delivery, and photothermal therapy. The
Jelena Papan, Patricija Hribar Boštjančič, Alenka Mertelj, Darja Lisjak   +3 more
doaj   +1 more source