Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
FERRITE SINTERED BODY, FERRITE SINTERED MAGNET, AND PRODUCTION METHOD THEREOF
To provide a ferrite sintered magnet which has high Br, causes little reduction in HcJ, and contains a less amount of Co used than conventional ferrite sintered magnets.SOLUTION: A ferrite sintered body has general formula Ca1-xRxFe2n-y-zCoyZnz representing an atomic ratio between metal elements Ca, R, Fe, Co and Zn (R being at least one rare earth element with La being an essential element included therein), where the x, y, z and n (2n being a molar ratio and represented by 2n=(Fe+Co+Zn)/(Ca+R)) satisfy 0.4
【課題】高いBrを有し、HcJの低下が少なく、かつ従来のフェライト焼結磁石よりもCoの使用量を削減したフェライト焼結磁石の提供。【解決手段】Ca、R、Fe、Co及びZnの金属元素(ただし、Rは希土類元素の少なくとも1種であってLaを必須に含む元素)の原子比を示す一般式：Ca1-xRxFe2n-y-zCoyZnzにおいて、前記x、y及びz、並びにn(ただし、2nはモル比であって、2n＝(Fe＋Co＋Zn)/(Ca＋R)で表される)が、0.4＜x≦0.5、0.15≦y≦0.25、0＜z＜0.11、及び4.5≦n≦5.5を満足するフェライト仮焼体。【選択図】なし
FERRITE SINTERED BODY, FERRITE SINTERED MAGNET, AND PRODUCTION METHOD THEREOF
To provide a ferrite sintered magnet which has high Br, causes little reduction in HcJ, and contains a less amount of Co used than conventional ferrite sintered magnets.SOLUTION: A ferrite sintered body has general formula Ca1-xRxFe2n-y-zCoyZnz representing an atomic ratio between metal elements Ca, R, Fe, Co and Zn (R being at least one rare earth element with La being an essential element included therein), where the x, y, z and n (2n being a molar ratio and represented by 2n=(Fe+Co+Zn)/(Ca+R)) satisfy 0.4
【課題】高いBrを有し、HcJの低下が少なく、かつ従来のフェライト焼結磁石よりもCoの使用量を削減したフェライト焼結磁石の提供。【解決手段】Ca、R、Fe、Co及びZnの金属元素(ただし、Rは希土類元素の少なくとも1種であってLaを必須に含む元素)の原子比を示す一般式：Ca1-xRxFe2n-y-zCoyZnzにおいて、前記x、y及びz、並びにn(ただし、2nはモル比であって、2n＝(Fe＋Co＋Zn)/(Ca＋R)で表される)が、0.4＜x≦0.5、0.15≦y≦0.25、0＜z＜0.11、及び4.5≦n≦5.5を満足するフェライト仮焼体。【選択図】なし
FERRITE SINTERED BODY, FERRITE SINTERED MAGNET, AND PRODUCTION METHOD THEREOF
フェライト仮焼体、フェライト焼結磁石及びその製造方法
TANIOKU YASUAKI (Autor:in) / KOBAYASHI YOSHINORI (Autor:in)
01.10.2020
Patent
Elektronische Ressource
Japanisch
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