High Energy Ferrite Magnets
| Autor: | Yoshihiko Minachi, Kiyoyuki Masuzawa, K. Suwa, T. Takeishi, Hitoshi Taguchi |
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| Rok vydání: | 1997 |
| Předmět: |
010302 applied physics
Chemistry Analytical chemistry General Physics and Astronomy chemistry.chemical_element 02 engineering and technology Zinc 021001 nanoscience & nanotechnology 01 natural sciences Grain size Magnetization Magnetic anisotropy Nuclear magnetic resonance [PHYS.HIST]Physics [physics]/Physics archives Magnet 0103 physical sciences Lanthanum Curie temperature 0210 nano-technology Chemical composition |
| Zdroj: | Journal de Physique IV Proceedings Journal de Physique IV Proceedings, EDP Sciences, 1997, 07 (C1), pp.C1-311-C1-312. ⟨10.1051/jp4:19971122⟩ |
| ISSN: | 1155-4339 1764-7177 |
| DOI: | 10.1051/jp4:19971122 |
| Popis: | Lanthanum and zinc substitution in M-type hexaferrite was studied in detail in order to increase the saturation magnetization. For the composition Sr 0.7 La 0.3 Fe 11.7 Zn 0.3 O 19, the saturation magnetization was increased by more than 4% and the uniaxial anisotropy constant (K 1 ) was almost the same as that of non-substituted Ba-ferrite. Furthermore, high energy ferrite magnets having more than 40kJ/m 3 (5MGOe) were obtained for the first time by the new process for high orientation, high density and submicron-sized grains. |
| Databáze: | OpenAIRE |
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