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HARD MAGNETIC COMPOSITION, PERMANENT MAGNET POWDER, METHOD FOR PERMANENT MAGNET POWDER, AND BONDE 发明申请

2023-09-11 4930 1162K 0

专利信息

申请日期 2026-03-15 申请号 EP04705916
公开(公告)号 EP1589544A1 公开(公告)日 2005-10-26
公开国别 EP 申请人省市代码 全国
申请人 TDK Corporation
简介 A single phase consisting of a ThMn12 phase can be obtained by having the composition thereof represented by a general formula R(Fe100-y-wCowTiy)xSizAv (in the general formula, R is at least one element selected from rare earth elements (here the rare earth elements signify a concept inclusive of Y), Nd accounts for 50 mol% or more of R, and A is N and/or C) in which the molar ratios in the general formula are such that x = 10 to 12.5, y = (8.3 - 1.7 × z) to 12.3, z = 0.1 to 2.3, v="0.1 to 3 and" w = 0 to 30, and the relation (Fe + Co + Ti + Si)/R > 12 is satisfied.


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