Results 71 to 80 of about 5,135 (192)

Pseudo-superparamagnetic behaviour of barium hexaferrite particles

open access: yesRSC Advances, 2020
Observed morphology evolution of BaFe12O19 ferrite particles, obtained with different relative amounts of surfactant used.
Szymon Dudziak   +5 more
openaire   +3 more sources

Manipulating Ferroelectric Topological Polar Structures with Twisted Light

open access: yesAdvanced Materials, Volume 37, Issue 33, August 21, 2025.
We demonstrate dynamic control of ferroelectric order in quasi‐2D CsBiNb2O7 using twisted ultraviolet light carrying orbital angular momentum. Our approach harnesses non‐resonant multiphoton absorption and induced strain to modulate topological of ferroelectric polarization textures.
Nimish P. Nazirkar   +10 more
wiley   +1 more source

Obtaining of Nanostructured Powders of Barium and Strontium Hexaferrite by the Polymer Precursor Method [PDF]

open access: yesЖурнал нано- та електронної фізики, 2015
Studied the possibility of obtaining by precursors in the polymer nanostructured powders of barium hexaferrite BaFe12O19 and strontium hexaferrite SrFe12O19.
V.G. Kostishyn   +2 more
doaj  

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

Synthesis and characterization of aluminium substituted calcium hexaferrite

open access: yesHeliyon, 2020
Al substituted M type Ca hexaferrite with composition CaAlxFe12-xO19 (x = 0, 0.2, 0.4, 0.6, 0.8) were synthesized by sol gel auto combustion method. The prepared samples were characterized by XRD, SEM, FTIR and VSM. X ray diffraction study shows that the
V.S. Shinde, S.G. Dahotre, L.N. Singh
doaj   +1 more source

Hysteresis and relaxation of hard–soft nanocomposite samples [PDF]

open access: yes, 2000
We present experimental results on the hysteresis and relaxation of Fe/Ba hexaferrite composite samples prepared by ball milling starting from precursor Fe and Ba hexaferrite particles.
Crespo del Arco, Patricia   +2 more
core   +2 more sources

Oxidative Dehydrogenation of Ethylbenzene over Iron‐Based Catalysts: Challenges, Prospects, and Future Trends

open access: yesChemCatChem, Volume 17, Issue 15, August 7, 2025.
This review discusses different aspects of the oxidative dehydrogenation reaction of ethylbenzene to styrene over iron‐based oxides, emphasizing the properties of the catalysts and the participation of active sites, as well as the deactivation and regeneration processes using soft oxidants.
Johnatan de Oliveira Soares   +2 more
wiley   +1 more source

Characterization of the BFO-BZN-based electroceramic composite for application as DRA [PDF]

open access: yesCerâmica
The study and development of ceramic composites are important because of the properties that these materials can provide, such as high dielectric constant and low dielectric loss in the RF and microwave range.
A. V. Duarte   +4 more
doaj   +2 more sources

Synthesis and Characterization of Novel V‐Type Hexaferrite BaFe9−xSnxO15

open access: yesZeitschrift für anorganische und allgemeine Chemie, Volume 651, Issue 12, August 1, 2025.
GA: The crystal structure of a new quaternary V‐type hexaferrite with the composition BaFe9−xSnxO15, found in the system Ba–Fe–Sn–O, is reported. A novel V‐type hexaferrite with the composition BaFe9−xSnxO15 with 1.57 ≤ x ≤ 1.84 (from wavelength dispersive X‐ray spectroscopy [WDX] data) is synthesized by reacting BaCO3, Fe2O3, SnO2, and Na2CO3 as flux ...
Yanina Mariella Dreer   +2 more
wiley   +1 more source

Influence of electromagnetic effect parameters on ferromagnetic powders fluidity

open access: yesMATEC Web of Conferences, 2018
The paper presents result of experimental studies of ferromagnetic powders fluidity management by effecting on particulate medium with constant and alternating gradient magnetic fields.
Egorov Ivan N., Egorov Nikolay Ya.
doaj   +1 more source

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