Results 81 to 90 of about 3,070 (205)

The mechanism of the formation of lead hexaferrite

open access: yes, 1970
Studies of the mechanism of the formation of lead hexaferrite from its constituent oxides have been conducted. The reactions were studied by differential thermal analysis, thermogravimetric analysis, X-ray diffraction procedures and by magnetic susceptibility measurements.
W S Bowman   +3 more
openaire   +1 more source

SYNTHESIS AND PROPERTIES OF ACICULAR BARIUM HEXAFERRITE

open access: yes, 1988
The barium hexaferrite crystallizes in the hexagonal system of the magnetoplumbite type. The particles, generally prepared by solid state reactions, coprecipitation, crystallisation ion a glass or by growth under a flux, usually appear in the form of ...
J. C. Bernier, M. Najmi, P. Poix
core   +1 more source

Magnetic Soft Robots for Targeted Bacterial Delivery and Enhanced Tumor Spheroid Disaggregation

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 10, October 2025.
Magnetic soft robots encapsulating probiotic bacteria offer a new strategy for targeted cancer therapy. These millimeter‐scale hydrogel robots enable magnetically guided delivery, controlled bacterial release, and enhanced tumor spheroid disintegration.
Tamara Krauss   +5 more
wiley   +1 more source

Hexaferrite/polyethylene composite coatings prepared with flame spraying

open access: yes, 2011
Composite coatings from different volume ratios of hexaferrite (BaFe12O19 or SrFe12O19) and polyethylenewere prepared, for the first time, with flame spraying.
Hujanen, Arto   +15 more
core   +1 more source

Structure determination and crystal chemistry of large repeat mixed-layer hexaferrites

open access: yesIUCrJ, 2018
Hexaferrites are an important class of magnetic oxides with applications in data storage and electronics. Their crystal structures are highly modular, consisting of Fe- or Ba-rich close-packed blocks that can be stacked in different sequences to form a ...
C. Delacotte   +11 more
doaj   +1 more source

Growth of self-textured barium hexaferrite ceramics by normal sintering process and their anisotropic magnetic properties

open access: yes, 2019
In this report a simple and low-cost technique for growing highly textured barium hexaferrite ceramics without the need for flux or seed crystals to achieve grain orientation is demonstrated.
S. D. Johnson   +7 more
core   +1 more source

On the Magnetization Mechanisms in Polycrystalline Hexaferrites

open access: yesLe Journal de Physique IV, 1997
An attempt was made to adapt the domain-wall size model to the explanation of magnetization mechanisms in real polycrystalline hard ferrites (SrFe12O19). Some new data concerning the total anisotropy specifically for polycrystals were discussed and its value deduced from natural spin resonance measurements.
openaire   +2 more sources

Barium hexaferrite nanoparticles with high magnetic properties by salt-assisted ultrasonic spray pyrolysis

open access: yes, 2014
Herein, we synthesized non-agglomerated barium hexaferrite nanoparticles by salt-assisted ultrasonic spray pyrolysis at different reaction temperatures.
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core   +1 more source

STRUCTURAL AND MAGNETIC CHARACTERIZATIONS OF BARIUM-STRONTIUM-FERRITES USING HEMATITE OF ANALYTICAL GRADE AND MAGNETITE FROM COX'S BAZAR BEACH SAND MINERAL [PDF]

open access: yesEuropean Journal of Materials Science and Engineering, 2017
This article presents the characterizations of BaO.SrO.xFe2O3 and BaO.SrO.xFe3O4 (x= 5.6, 5.8, 6) hexaferrites. We have used hematite of analytical grade and magnetite from Cox’s Bazar beach sand mineral to prepare these samples.
Ummay HABIBA   +2 more
doaj  

Preparation of nanocrystalline barium hexaferrite in a glass medium

open access: yes, 1997
Barium hexaferrite phase of composition BaO-6Fe(2)O(3) of dimensions in the range 8.2 to 17.6 nm have been grown within a glass medium by subjecting the latter to a suitable heat treatment.
Chakravorty, D   +14 more
core   +1 more source

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