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Magnetic oxide material 发明授权

2023-10-18 1690 382K 0

专利信息

申请日期 2025-07-18 申请号 KR1020027015461
公开(公告)号 KR100909702B1 公开(公告)日 2009-07-21
公开国别 KR 申请人省市代码 全国
申请人 HITACHI METALS LTD
简介 A ferrite magnet powder and a ferrite magnet exhibiting improved magnetic properties are provided at a reduced manufacturing cost. An application product and manufacturing methods thereof are also provided. An oxide magnetic material includes, as a main phase, a ferrite having a hexagonal M-type magnetoplumbite structure. The material includes : A, which is at least one element selected from the group consisting of Sr, Ba, Pb and Ca; R, which is at least one element selected from the group consisting of Y (yttrium), the rare earth elements and Bi; Fe; and B (boron). The constituents A, R, Fe and B of the material satisfy the inequalities of 7.04 at%


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