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公开(公告)号：US4935075A
公开(公告)日：1990-06-19
申请号：US311389
申请日：1989-02-16
IPC分类号： H01F1/057
CPC分类号： H01F1/0577 , H01F1/057 , H01F1/0578
摘要： A permanent magnet essentially consists of 10 to 40% by weight of R, 0.1 to 8% by weight of boron, 13% by weight or less of gallium and iron, where R is at least one component selected from the group consisting of yttrium and the rare-earth elements.The magnet having this composition has a high coercive force iHC and a high residual magnetic flux density and therefore has a high maximum energy product.
摘要翻译： 永磁体基本上由10〜40重量％的R，0.1〜8重量％的硼，13重量％以下的镓和铁组成，其中R为选自钇和 稀土元素。 具有这种组成的磁体具有高的矫顽力iHC和高剩余磁通密度，因此具有高的最大能量积。
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公开(公告)号：US4975213A
公开(公告)日：1990-12-04
申请号：US294124
申请日：1989-01-06
CPC分类号： H01F1/0578 , C22C1/0441
摘要： In a method for producing a resin-bonded rare earth-iron-boron magnet, a powder is subjected to a heat-treatment below its melting point. The powder can be either: (1) a mixture of both: (a) a powder of a rare earth-iron-boron magnetic alloy comprising about 8 to about 30 atomic percent of R, which stands for at least one selected from the group of Y (yttrium) and rare earth elements, about 2 to about 28 atomic precent of B(boron), and at least 50 atomic percent of Fe(iron) and (b) at least one of the group consisting of R, R-oxides, which are oxides of R, and R-compound, which are the compounds consisting essentially of more than 30 atomic percent of R and the balance substantially of at least one of Fe and Co; or (2) a rare earth-iron-boron magnetic alloy comprising about 8 to about 30 atomic percent of R, about 2 to about 28 atomic percent of B, about 0.1 to about 13 atomic percent of Ga, and at least 50 atomic percent of Fe. The resultant heat-treatment powder is then bonded with a resin. The present invention also includes a magnet such as might be made by such a method.
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公开(公告)号：US4859254A
公开(公告)日：1989-08-22
申请号：US905397
申请日：1986-09-10
申请人： Tetsuhiko Mizoguchi , Isao Sakai , Hiromi Niu , Koichiro Inomata
发明人： Tetsuhiko Mizoguchi , Isao Sakai , Hiromi Niu , Koichiro Inomata
CPC分类号： H01F1/0577
摘要： A permanent magnet according to the present invention is characterized in that it is composed of an alloy comprising mainly of iron, and R (rare earth element including yttrium), cobalt, and boron, wherein the alloy is formed principally of ferromagnetic Fe-rich phase of tetragonal system and includes a nonmagnetic Laves phase. Compared with the prior rare earth-Fe based magnet, it has higher Curie temperature and has excellent magnetic characteristics, especially the temperature characteristics.
摘要翻译： 根据本发明的永磁体的特征在于，它由主要由铁组成的合金和R（包括钇）的稀土元素，钴和硼组成，其中合金主要由铁磁富Fe相形成 的四方系统，包括非磁性Laves相。 与现有的稀土 - 铁基磁体相比，具有较高的居里温度，具有优异的磁特性，特别是温度特性。
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公开(公告)号：US4664724A
公开(公告)日：1987-05-12
申请号：US773547
申请日：1985-09-09
CPC分类号： H01F1/057 , H01F1/0577
摘要： A permanent magnetic alloy essentially consists of 10 to 40% by weight of R, 0.1 to 8% by weight of boron, 50 to 300 ppm by weight of oxygen and the balance of iron, where R is at least one component selected from the group consisting of yttrium and the rare-earth elements.An alloy having this composition has a high coercive force .sub.I H.sub.C and a high residual magnetic flux density and therefore has a high maximum energy product.
摘要翻译： 永磁合金基本上由10〜40重量％的R，0.1〜8重量％的硼，50〜300重量ppm的氧和余量的铁组成，其中R为至少一种选自 由钇和稀土元素组成。 具有这种组成的合金具有高矫顽力IHC和高剩余磁通密度，因此具有高的最大能量积。
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公开(公告)号：US5071493A
公开(公告)日：1991-12-10
申请号：US470748
申请日：1990-01-26
CPC分类号： H01F1/0577
摘要： There is disclosed a permanent magnet comprising a sintered alloy composed of rare earth elements (R), boron and iron. This permanent magnet is substantially constituted by 2-phase systems, i.e. a ferromagnetic Fe-rich phase (Nd.sub.2 Fe.sub.14 B) and a nonmagnetic R-rich phase (Nd.sub.97 Fe.sub.3), and has BH.sub.max of more than 38.0 MGOe.
摘要翻译： 公开了一种永磁体，其包括由稀土元素（R），硼和铁组成的烧结合金。 该永磁体基本上由两相体系构成，即铁磁性富Fe相（Nd2Fe14B）和非磁性富R相（Nd97Fe3），BHmax大于38.0MGOe。
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公开(公告)号：US4878964A
公开(公告)日：1989-11-07
申请号：US249945
申请日：1988-09-27
CPC分类号： H01F1/057 , H01F1/0577
摘要： A permanent magnetic alloy essentially consists of 10 to 40% by weight of R, 0.1 to 0.8% by weight of boron, 50 to 300 ppm by weight of oxygen and the balance of iron, where R is at least one component selected from the group consisting of yttrium and the rate-earth elements.An alloy having this composition has a high coercive force .sub.I H.sub.C and a high residual magnetic flux density and therefore has a high maximum energy product.
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7.发明授权
公开(公告)号：US4827235A
公开(公告)日：1989-05-02
申请号：US73184
申请日：1987-07-14
IPC分类号： G01R33/383 , H01F7/02 , H01F1/24 , C04B35/32
CPC分类号： G01R33/383 , H01F7/0278
摘要： A magnetic field generator comprises a permanent magnet, and pole pieces magnetically connected to the permanent magnet. The pole pieces are disposed to face each other to generate a magnetic field between them, and have a specific resistance of 20 .mu..OMEGA.-cm or more. The permanent magnet comprises a sintered alloy including iron as a main component, a rare earth element including yttrium, cobalt, and boron. The permanent magnet includes, as its main part, a strong magnetic Fe-rich phase of a tetragonal system, as well as a non-magnetic Laves phase, and preferably has a maximum energy product of 38 MGOe or more.
摘要翻译： 磁场发生器包括永磁体和与永磁体磁连接的极片。 磁极片彼此面对配置，在它们之间产生磁场，电阻值为20μΩEGEG-cm以上。 永磁体包括以铁为主要成分的烧结合金，包括钇，钴和硼的稀土元素。 永久磁铁作为其主要部分包括四方晶系的强磁铁富相以及非磁性Laves相，优选具有38MGOe以上的最大能量乘积。
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公开(公告)号：US4793874A
公开(公告)日：1988-12-27
申请号：US11609
申请日：1987-02-06
CPC分类号： H01F1/057 , H01F1/0577
摘要： A permanent magnetic alloy essentially consists of 10 to 40% by weight of R, 0.1 to 8% by weight of boron, 50 to 300 ppm by weight of oxygen and the balance of iron, where R is at least one component selected from the group consisting of yttrium and the rare-earth elements.An alloy having this composition has a high coercive force .sub.I H.sub.C and a high residual magnetic flux density and therefore has a high maximum energy product.
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9.发明授权
公开(公告)号：US6066415A
公开(公告)日：2000-05-23
申请号：US928033
申请日：1997-09-11
申请人： Isao Sakai , Hideki Yoshida , Masaaki Yamamoto , Motoya Kanda
发明人： Isao Sakai , Hideki Yoshida , Masaaki Yamamoto , Motoya Kanda
CPC分类号： C01B3/0057 , C01B3/0031 , Y02E60/327 , Y10S420/90
摘要： A hydrogen absorbing electrode containing a hydrogen absorbing alloy consisting mainly of AB.sub.3 type crystal-structure phase and represented by the following formula (I) is providedR(Ni.sub.1-x M.sub.x).sub.z (I)wherein R is at least one element selected from rare earth elements (including Y), M is at least one element selected from the group consisting of Al, Ga, Zn, Sn, Cu, Si, Ag, In, Ti, Zr, Hf, V, Nb, Ta, Cr, Fe, Mn, Mo and W, and x and z are respectively a number satisfying conditions 0.01.ltoreq.x.ltoreq.0.2, and 2.5
摘要翻译： 提供含有主要由AB3型晶体结构相组成并由下式（I）表示的吸氢合金的吸氢电极R（Ni1-xMx）z（I）其中R是选自稀土元素中的至少一种元素 （包括Y），M是选自Al，Ga，Zn，Sn，Cu，Si，Ag，In，Ti，Zr，Hf，V，Nb，Ta，Cr，Fe，Mn中的至少一种元素 ，Mo和W，x和z分别是满足条件0.01≤x≤0.2和2.5
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公开(公告)号：US5527398A
公开(公告)日：1996-06-18
申请号：US140308
申请日：1993-10-22
CPC分类号： H01F1/0306 , H01L41/20
摘要： The magnetostriction alloys of the present invention are composed basically of Tb--Dy-iron which is partially substituted by at least one element selected from the group consisting of Y, La, Ce, Pr, Nd and Sm, and have been grown in the direction of face index or contain Mn and M element (at least one metallic element selected from the group consisting of C, Mg, Al, Si, Ca, Zr, Y, Ga and B. The magnetostrictive alloy may be formed by melting the constituent materials by high frequency induction dissolution. The molten materials are cast in a heated mold having a temperature gradient. The solidified material may be further treated by hot working.
摘要翻译： 本发明的磁致伸缩合金基本上由Tb-Dy-Fe组成，其部分地被选自Y，La，Ce，Pr，Nd和Sm中的至少一种元素取代，并且已经沿着 的表面指数<110>或含有Mn和M元素（选自C，Mg，Al，Si，Ca，Zr，Y，Ga和B中的至少一种金属元素）。磁致伸缩合金可以通过熔化 通过高频感应溶解构成材料，熔融材料在具有温度梯度的加热模具中铸造，固化材料可以通过热加工进一步处理。
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