Results 81 to 90 of about 2,761 (198)

Mössbauer Analysis and Cation Distribution of Zn Substituted BaFe12O19 Hexaferrites

open access: yesJournal of Superconductivity and Novel Magnetism, 2017
Barium hexaferrite is a well-known hard magnetic material. Doping using nonmagnetic cation such as Zn2+ were found to enhance magnetization owing to preferential tetrahedral site (4 f 1) occupancy of the zinc. However, the distribution of cations in hexaferrites depends on many factors such as the method of preparation, nature of the ...
Auwal, I. A.   +6 more
openaire   +3 more sources

New Approach to Designing Functional Materials for Stealth Technology: Radar Experiment with Bilayer Absorbers and Optimization of the Reflection Loss

open access: yesAdvanced Functional Materials, Volume 34, Issue 6, February 5, 2024.
This work reports experimental and modeling results of single and bi‐layered systems with microwave‐absorbing properties. Layers containing hexaferrite and iron powder in paint are prepared and measured under real radar conditions in an anechoic chamber.
Jaume Calvo‐de la Rosa   +6 more
wiley   +1 more source

Characterization of BaFe12O19/Co3O4 using mechanical alloying approach for microwave absorbing materials

open access: yesCase Studies in Chemical and Environmental Engineering
In this research, the BaFe12O19/Co3O4 material was carried out using the mechanical alloying approach with variations in Co3O4 composition of (10, 15, 20) wt%. The characterizations were using XRD, SEM-EDX, and VNA.
Martha Rianna   +9 more
doaj   +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  

Sintesis Bahan M-Hexaferrites Dengan Doping Logam Co Menggunakan FTIR [PDF]

open access: yes, 2015
Has successfully carried out the study synthesis of materials M-heksaferit with doping metal Co using FTIR. The study was conducted to see the phase that forms on M-hexaferrites material by adding a transition metal element cobalt (Co) with the mole ...
Doyan, A. (Aris)   +2 more
core  

Studi Resonansi Feromagnetik BaFe12O19 Menggunakan Simulasi Mikromagnetik

open access: yesBERKALA SAINSTEK, 2018
Barium Hexaferit (BaFe12O19) adalah magnet keramik golongan ferit. Ferit diaplikasikan sebagai magnet permanen dan mempunyai struktur hexagonal close-pakced (HCP). Kurva histerisis magnet permanen jenis ini memiliki koersivitas yang relatif tidak besar sehingga senyawa tersebut juga berpeluang cukup baik untuk diaplikasikan sebagai media penyimpanan ...
Edy Supriyanto   +2 more
openaire   +2 more sources

Binder Influence on Barium Hexaferrite: Comparative Analysis of PVA and Silicone Rubber in Sintered Magnets

open access: yesJIF (Jurnal Ilmu Fisika)
This study explores the impact of binder types—polyvinyl alcohol (PVA) and silicone rubber (SR)—on the physical, magnetic, and mechanical properties of barium hexaferrite (BaFe12O19), synthesized via mechanical alloying and sintered at 1100°C.
Wahyu Solafide Sipahutar   +4 more
doaj   +1 more source

Оценка температур и составов эвтектик бинарных и тройных сечений системы ВаО – Аl₂О₃ – Fе₂О₃ [PDF]

open access: yes, 2013
Проведена оценка максимальных температур службы составов эвтектик бинарных и тройных сечений системы ВаО – Аl₂О₃ – Fе₂О₃. Определены области наиболее пригодные для получения защитных вяжущих материалов с повышенной температурой эксплуатации.The ...
Ворожбиян, М. И.   +3 more
core  

Study of Cu2O Particle Morphology on Microwave Field Enhancement

open access: yes, 2018
The dielectric enhancement and modulation of a cuprous oxide (Cu2O) microwave-active catalyst material is investigated from an experimental and computational point of view.
Houlihan, Nora   +4 more
core   +1 more source

Direct calorimetric measurements of isothermal entropy change on single crystal W-type hexaferrites at the spin reorientation transition [PDF]

open access: yes, 2012
We report on the magnetic field induced isothermal entropy change, \Delta s(Ha, T), of W-type ferrite with CoZn substitution. Entropy measurements are performed by direct calorimetry.
A. Pasko   +7 more
core   +3 more sources

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