Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
FERRITE MAGNETIC MATERIAL, FERRITE MAGNET, FERRITE SINTERED MAGNET
An object of the invention is to provide a ferrite magnetic material, which can provide permanent magnet wherein a high Br and HcJ are maintained, and in addition, a high Hk/HcJ is provided, and to provide a ferrite magnet and ferrite sintered magnet respectively comprising said ferrite magnetic material. In order to achieve such object, a ferrite magnetic material, in which its main phase comprises ferrite phase having a hexagonal crystal structure, and metal element composition expressed by Ca 1-w-x-y R w Sr x Ba y Fe z M m wherein 0.25 < w < 0.5, 0.01 < x < 0.35, 0.0001 < y < 0.013 , y < x, 8.7 < z < 9.9, 1.0 < w/m < 2.1, 0.017 < m / z < 0.055 and Si component is at least included as a sub-component, and wherein; when content yl mass% of the Si component in the ferrite magnetic material, with respect to SiO 2 , is shown on Y-axis and a total content xl of z and m is shown on X-axis, a relation between xl and yl is within a range surrounded by 4 points placed on X-Y coordinate having the X and Y axes, and a ferrite magnet and a ferrite sintered magnet comprising the ferrite magnetic material are provided.
FERRITE MAGNETIC MATERIAL, FERRITE MAGNET, FERRITE SINTERED MAGNET
An object of the invention is to provide a ferrite magnetic material, which can provide permanent magnet wherein a high Br and HcJ are maintained, and in addition, a high Hk/HcJ is provided, and to provide a ferrite magnet and ferrite sintered magnet respectively comprising said ferrite magnetic material. In order to achieve such object, a ferrite magnetic material, in which its main phase comprises ferrite phase having a hexagonal crystal structure, and metal element composition expressed by Ca 1-w-x-y R w Sr x Ba y Fe z M m wherein 0.25 < w < 0.5, 0.01 < x < 0.35, 0.0001 < y < 0.013 , y < x, 8.7 < z < 9.9, 1.0 < w/m < 2.1, 0.017 < m / z < 0.055 and Si component is at least included as a sub-component, and wherein; when content yl mass% of the Si component in the ferrite magnetic material, with respect to SiO 2 , is shown on Y-axis and a total content xl of z and m is shown on X-axis, a relation between xl and yl is within a range surrounded by 4 points placed on X-Y coordinate having the X and Y axes, and a ferrite magnet and a ferrite sintered magnet comprising the ferrite magnetic material are provided.
FERRITE MAGNETIC MATERIAL, FERRITE MAGNET, FERRITE SINTERED MAGNET
FERRITMAGNETMATERIAL, FERRITMAGNET UND FERRITSINTERMAGNET
MATÉRIAU POUR AIMANT EN FERRITE, AIMANT EN FERRITE, AIMANT EN FERRITE FRITTÉ
YANAGIDA SHIGEKI (Autor:in) / MORI TAKAHIRO (Autor:in) / MORITA HIROYUKI (Autor:in) / SUTO NOBUHIRO (Autor:in) / KATOH TATSUYA (Autor:in) / MINACHI YOSHIHIKO (Autor:in)
30.08.2017
Patent
Elektronische Ressource
Englisch
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