Results 191 to 200 of about 285,357 (258)

Complex permeability of polycrystalline hexagonal ferrites

INTERMAG 2000 Digest of Technical Papers. 2000 IEEE International Magnetics Conference, 2000
Polycrystalline hexagonal ferrites (Y, Z and W-phases) were prepared by the usual ceramic sintering. Their complex permeability spectra were natural resonance type, and numerically separated into spin rotational and domain wall motion components. For the spin rotational component, it was found that the Snoek's product values of them were far beyond the
T. Nakamura, K. Hatakeyama
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Microstructure and electromagnetic of tantalum substituted W-type hexagonal barium ferrite based on doping concentration

Journal of Materials Science: Materials in Electronics, 2023
Shijun Dong, Runqiu Li, Junpeng Wu, Wenxia Zhong, Ye Zhao, Xinran Ji, Hui Zheng, Peng Zheng, Hong He, Liang Zheng   +9 more
semanticscholar   +1 more source

Single-Domain Properties in Hexagonal Ferrites

Journal of Applied Physics, 1963
Barium ferrite platelet-shaped particles have been prepared with a diameter of 0.1 microns, which is an order of magnitude smaller than those obtained by conventional sintering and regrinding techniques. The preparation technique used has been optimized to produce the complete ferrite with σs=68 emu/g.
C. D. Mee, J. C. Jeschke
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Epitaxial Garnets and Hexagonal Ferrites.

1980
Abstract : The objective of this research is to develop new and improved epitaxial ferrite materials for use in microwave and millimeter-wave signal processing devices. The major emphasis has been on multiple layer magnetic garnet structures for magnetostatic wave (MSW) delay lines.
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Magneto-optical properties and physical characteristics of M-type hexagonal ferrite (Ba1-xCaxFe11.4Al0.6O19) nanoparticles (NPs)

, 2021
M. Yousaf, S. Nazir, Qaisar Hayat, M. Akhtar, M. Akbar, Yuzheng Lu, Asma Noor, Jian-min Zhang, M. Shah, Baoyuan Wang   +9 more
semanticscholar   +1 more source

Novel TiO2-doped semiconducting hexagonal ferrites

2015
Hexagonal ferrites are well known, globally important magnetic ceramics, with many applications in electronics and telecommunications, especially at microwave frequencies. However, for useful dielectric properties, it is usually required that they have a low degree of conductivity.
R Pullar, IVCiuchi, P Galizia, CGalassi
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The Microwave Properties of Aligned Hexagonal Ferrite Fibers

Journal of Materials Science Letters, 1998
Among the new class of planar hexagonal ferrites discovered between 1952 and 1956 by Philips [1, 2] were Y ferrite (Ba2M2Fe12O22), W ferrite (BaM2 Fe16O27) and Z ferrite (Ba3M2Fe24O41). These are all constructed from basic units of hexagonal barium M ferrite and cubic spinel ferrites in various combinations, and they retain a hexagonal structure ...
Pullar R. C., Appleton S. G., Bhattacharya A. K.   +2 more
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Magnetoelectric composites based on hexagonal ferrites

2011
Compósitos Magnetoelectricos baseados em ferrites hexagonais BaFe12O19, SrFe12O19, Ba3Co2Fe24O41, e em perovsquites ferroelectricas BaTiO3, foram estudadas. Foram realizadas análises estruturais por difracção de Raios-X e microscopia de varrimento de electrões; ambas as fases, ferroelectrica e ferromagnética apresentam distorções apreciáveis dos ...
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Growth of complex single-crystal hexagonal ferrites

Materials Research Bulletin, 1967
Abstract Numerous “mixed-layer type” hexagonal ferrites have been grown as crystals from molten flux. Two structural series both of which belong to ternary systems of the type BaO-MeO-Fe 2 O 3 are differentiated. In the structural series M n Y p , Me was Zn, Mg, Ni, Co, Fe, Cu, and Mn.
R.O. Savage, A. Tauber
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Spinel soft ferrite-hexagonal ferrite nanocomposites

2021
Raghvendra Singh Yadav, Ivo Kuřitka, Jarmila Vilčáková   +2 more
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