Results 71 to 80 of about 2,555 (212)

Dielectric Substrate Prediction Through Transmission Measurements and Machine Learning

Journal of Engineering, Volume 2025, Issue 1, 2025.
Dielectric properties of the substrates play an important role in the design and performance characterization of communication components such as antennas, filters, and sensors. Conventionally, dielectric probes are used to measure the properties of the substrate. However, the dielectric probes are very expensive and easily breakable instruments.
Muhammad Inam Abbasi, Moses Francis, Sher Dali Khan, Noor Hafizah Sulaiman, Muhammad Hashim Dahri, Imran Mohd Ibrahim, Zaid Ahmed Shamsan, Shikha Binwal   +7 more
wiley   +1 more source

Electromagnetic properties of photodefinable barium ferrite polymer composites

AIP Advances, 2014
This article reports the magnetic and microwave properties of a Barium ferrite powder suspended in a polymer matrix. The sizes for Barium hexaferrite powder are 3–6 μm for coarse and 0.8–1.0 μm for the fine powder. Ratios 1:1 and 3:1 (by mass) of ferrite
Olusegun Sholiyi, Jaejin Lee, John D. Williams   +2 more
doaj   +1 more source

A Frustrated Antipolar Phase Analogous to Classical Spin Liquids

Advanced Materials, Volume 36, Issue 50, December 12, 2024.
EuAl12O19 crystals realize an electric analogue to one of the famous models of frustrated magnetism: the Ising triangular lattice antiferromagnet. Electric dipoles on a triangular lattice preferentially align antiparallel to their neighbors yet fail to form any long‐range order, even at the lowest temperatures.
Gaël Bastien, Dalibor Repček, Adam Eliáš, Andrej Kancko, Quentin Courtade, Tetiana Haidamak, Maxim Savinov, Viktor Bovtun, Martin Kempa, Karel Carva, Michal Vališka, Petr Doležal, Marie Kratochvílová, Sarah A. Barnett, Petr Proschek, Jan Prokleška, Christelle Kadlec, Petr Kužel, Ross H. Colman, Stanislav Kamba   +19 more
wiley   +1 more source

Synthesis, structure and substitution mechanism of manganese Mn doped barium hexaferrite BaFe12-xMnxO19

Results in Chemistry
Polycrystalline BaFe12-xMnxO19 samples (x = 0–2, step 0.5) were synthesized by the ceramic technique. The dopant content in the ceramics was controlled by its charge content.
S.A. Gudkova, V.E. Zhivulin, G.M. Zirnik, L.A. Pesin, R.G. Chumakov, A.S. Chernukha, I.A. Solizoda, K.P. Gafarova, D.A. Vinnik   +8 more
doaj   +1 more source

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

Advanced 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, Aleix Bou‐Comas, Joan Manel Hernàndez, Pilar Marín, Jose Maria Lopez‐Villegas, Javier Tejada, Eugene M. Chudnovsky   +6 more
wiley   +1 more source

Barium hexaferrite/muscovite heteroepitaxy with mechanically robust perpendicular magnetic anisotropy

npj Flexible Electronics, 2021
Recent advances in the design and development of magnetic storage devices have led to an enormous interest in materials with perpendicular magnetic anisotropy (PMA) property.
Wei-En Ke, Pao-Wen Shao, Chang-Yang Kuo, Haili Song, Rong Huang, Naoki Yagi, Tsuyoshi Kimura, Yugandhar Bitla, Chun-Fu Chang, Ying-Hao Chu   +9 more
doaj   +1 more source

Synthesis and characterization of barium hexaferrites derived from steel waste by ammonium nitrate salt melt synthesis [PDF]

, 2015
In this paper, a series of barium hexaferrite BaFe12O19 with different powder to salt ratio (1:3, 1:4, 1:5) were prepared using ammonium salt melt technique.
Azis, Raba'ah Syahidah, Azizan, Abddul Halim, Che Muda, Nor Nadhirah, Daud, Noruzaman, Hashim, Mansor, Hassan, Jumiah, Mohd Sharani, Nuraine Mariana, Musa, Makiyyu Abdullahi, Sulaiman, Sakinah   +8 more
core  

Formation of the microstructure and properties of strontium hexaferrite magnets using powder injection molding

Тонкие химические технологии
Objectives. The study set out to investigate the possibility of production strontium hexaferrite permanent magnets using powder injection molding (PIM) technology, which involves casting granules highly filled with ceramic powder.
B. D. Chernyshev, I. V. Schetinin
doaj   +1 more source

Electrical and dielectric properties of Nb3+ ions substituted Ba-hexaferrites

Results in Physics, 2019
Single phase of BaFe12-xNbxO19 (x ≤ 0.1) hexaferrites (HFs) were fabricated via citrate sol-gel route. The Ba hexaferrite formation has been confirmed by XRD and FE-SEM.
M.A. Almessiere, B. Unal, Y. Slimani, A. Demir Korkmaz, N.A. Algarou, A. Baykal   +5 more
doaj   +1 more source

Rare earth doped M-type hexaferrites; ferromagnetic resonance and magnetization dynamics

AIP Advances, 2018
M-type hexagonal barium ferrites come in the category of magnetic material that plays a key role in electromagnetic wave propagation in various microwave devices.
Vipul Sharma, Shweta Kumari, Bijoy K. Kuanr   +2 more
doaj   +1 more source