A method for evaluating a raw alloy for a magnet
    5.
    发明公开
    A method for evaluating a raw alloy for a magnet 有权
    Verfahren zur Bewertung einer Rohlegierungfüreinen Magneten

    公开(公告)号:EP1880782A2

    公开(公告)日:2008-01-23

    申请号:EP07015643.5

    申请日:2001-09-25

    摘要: To make a raw alloy, consisting mostly of amorphous structure, highly productively and at a reduced cost for a nanocomposite magnet, a molten alloy represented by Fe 100-x-y-z R x Q y M z (where R is at least one element selected from Pr, Nd, Dy and Tb; Q is B and/or C; M is at least one element selected from Co, Al, Si, Ti, V, Cr, Mn, Ni, Cu, Ga, Zr, Nb, Mo, Ag, Pt, Au and Pb; and 1 at%≦x

    摘要翻译: 为了制备主要由非晶结构组成的原料合金,以高成本且成本低廉的纳米复合磁体,由Fe 100-xy z R x Q y M z(其中R是至少一种选自Pr ,Nd,Dy和Tb; Q为B和/或C; M为选自Co,Al,Si,Ti,V,Cr,Mn,Ni,Cu,Ga,Zr,Nb,Mo,Ag ,Pt,Au和Pb; 1%%| x <6 at%,15 at%‰| 30 at%,0 at%‰| 7 at%)。 该熔融合金通过带钢铸造工艺快速冷却,其中将合金进料到冷却辊上,以3m / s的圆周速度旋转至小于20m / s,以每单位接触宽度0.2的进料速率 kg / min / cm〜5.2kg / min / cm。 以这种方式,可以获得包含至少60体积%的非晶相的合金。

    IRON BASE RARE EARTH NANO-COMPOSITE MAGNET AND METHOD FOR PRODUCTION THEREOF
    6.
    发明公开
    IRON BASE RARE EARTH NANO-COMPOSITE MAGNET AND METHOD FOR PRODUCTION THEREOF 有权
    EISENBASIS-SELTENERD-NANOZUSAMMENSETZUNGSMAGNET UND HERSTELLUNGSVERFAHRENDAFÜR

    公开(公告)号:EP1826782A1

    公开(公告)日:2007-08-29

    申请号:EP05816736.2

    申请日:2005-12-13

    申请人: Neomax Co., Ltd.

    摘要: The iron-based rare-earth nanocomposite magnet of the present invention has a composition T 100-x-y-z-n Q x R y Ti z M n , where T is Fe or a transition metal element in which Fe is partially replaced by Co and/or Ni; Q is B and/or C; R is at least one rare-earth element including substantially no La or Ce; and M is at least one metal element selected from Al, Si, V, Cr, Mn, Cu, Zn, Ga, Zr, Nb, Mo, Ag, Hf, Ta, W, Pt, Au and Pb. x, y, z and n satisfy 5 ≦ x ≦ 10 at%, 7≦y≦10 at%, 0.1≦z≦5 at% and 0≦n≦10 at%, respectively. The magnet includes R 2 Fe 14 B-type compound phases and α -Fe phases forming a magnetically coupled nanocomposite magnet structure. The R 2 Fe 14 B-type compound phases have an average crystal grain size of 30 nm to 300 nm and the α-Fe phases have an average crystal grain size of 1 nm to 20 nm. The magnet has magnetic properties including a coercivity of at least 400 kA/m and a remanence of at least 0.9 T.

    摘要翻译: 本发明的铁基稀土纳米复合磁体具有组成T 100-xyzn Q x R y Ti z M n,其中T是Fe或其中Fe被Co和/或Ni部分替代的过渡金属元素 ; Q是B和/或C; R是至少一种稀土元素,其基本上不含La或Ce; M是选自Al,Si,V,Cr,Mn,Cu,Zn,Ga,Zr,Nb,Mo,Ag,Hf,Ta,W,Pt,Au和Pb中的至少一种金属元素。 x,y,z和n分别满足5‰| x‰| 10 at%,7‰|‰| 10 at%,0.1‰| z‰| 5 at%和0‰|‰| 10 at%。 磁体包括形成磁耦合纳米复合磁体结构的R 2 Fe 14 B型化合物相和±-Fe相。 R 2 Fe 14 B型化合物相的平均结晶粒径为30nm〜300nm,±Fe相的平均结晶粒径为1nm〜20nm。 该磁体具有包括至少400kA / m的矫顽力和至少0.9T的剩磁的磁性。