Results 21 to 30 of about 1,417 (206)

Enhanced magnetoelectric effect in M-type hexaferrites by Co substitution into trigonal bi-pyramidal sites [PDF]

open access: yes, 2011
The magnetoelectric effect in M-type Ti-Co doped strontium hexaferrite has been studied using a combination of magnetometry and element specific soft X-ray spectroscopies.
Beevers, J. E.   +8 more
core   +4 more sources

Photocatalytic activity of visible light active Sr-hexaferrite prepared by solid-state reaction and the pechini methods

open access: yesMaterials Research Express, 2023
In this work, strontium hexaferrite (SrFe _12 O _19 ) was prepared using two different methods, the solid-state reaction and the sol–gel pechini methods.
M F Ramírez Ayala   +7 more
doaj   +1 more source

Determination of the Gyrotropic Characteristics of Hexaferrite Ceramics From 75 to 600 GHz [PDF]

open access: yes, 2010
(c) 2010 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or ...
Caroopen, S   +5 more
core   +1 more source

Touch‐free reactive flash sintering of dense strontium hexaferrite permanent magnet

open access: yesJournal of the American Ceramic Society, Volume 106, Issue 12, Page 7202-7208, December 2023., 2023
Abstract This work presents an extension of the touch‐free flash sintering technique. In the proposed technique, chemical reaction and sintering occur in a single step, without the use of electrodes, in the presence of electric and magnetic fields.
Syed I. A. Jalali   +7 more
wiley   +1 more source

Ferromagnetic Mn–Al–C L10 Formation by Electric Current Assisted Annealing

open access: yesAdvanced Engineering Materials, Volume 25, Issue 18, September 2023., 2023
The metastable Mn–Al–C τ‐phase shows potential to be used as permanent magnet; however, this phase is easily decomposed. To carefully control its synthesis, a novel approach using electric current–assisted annealing to obtain pure τ‐phase samples is reported. Increasing the electric current density, the onset temperature for phase formation is reduced,
Fernando Maccari   +6 more
wiley   +1 more source

From mill scale to Sr-ferrite permanent magnets; upcycling by additives [PDF]

open access: yesAIP Advances
This study examines the sustainable production of strontium hexaferrite by recycling mill scale, a by-product of steel manufacturing, as a source of iron.
Nilay Gunduz Akdogan   +3 more
doaj   +1 more source

Structural and magnetic properties of nanocrystalline BaFe12O19 synthesized by microwave-hydrothermal method [PDF]

open access: yes, 2012
Nanocrystalline BaFe12O19 powders were prepared by microwave-hydrothermal method at 200 °C/45 min. The as-synthesized powders were characterized by using X-ray diffraction (XRD), thermogravimetry (TG) and differential thermal analysis (DTA).
Angadi, B.   +3 more
core   +1 more source

The influence of the particle size on rheological properties of magneto fluidized bed of strontium hexaferrite [PDF]

open access: yesE3S Web of Conferences
Powder metallurgy processes are in general less polluting and more sustainable than the traditional mechanical manufacturing. In order to organize technological processes with the ferromagnetic powders, one usually applies special methods to change the ...
Egorov Ivan   +2 more
doaj   +1 more source

Effect of ionic substitutions on the magnetic properties of strontium hexaferrite: A first principles study

open access: yesAIP Advances, 2017
We investigated the effect of substitution of various ions at the Fe sites on magnetic properties of strontium hexaferrite (SrFe12O19) using first principles method based on density functional theory.
Vivek Dixit   +3 more
doaj   +1 more source

Ca–Al double-substituted strontium hexaferrites with giant coercivity

open access: yesChemical Communications, 2018
Ca–Al double-substituted strontium hexaferrites exhibit record-high coercivities up to 21.3 kOe.
Lev A. Trusov   +9 more
openaire   +4 more sources

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