公开(公告)号：US07297213B2

公开(公告)日：2007-11-20

申请号：US10745834

申请日：2003-12-24

申请人： Hirokazu Kanekiyo ,  Toshio Miyoshi ,  Satoshi Hirosawa ,  Yasutaka Shigemoto ,  Yusuke Shioya

发明人： Hirokazu Kanekiyo ,  Toshio Miyoshi ,  Satoshi Hirosawa ,  Yasutaka Shigemoto ,  Yusuke Shioya

IPC分类号： H01F1/057 ,  H01F1/058

CPC分类号： B82Y25/00 ,  H01F1/0579 ,  H01F1/058

摘要： An iron-based rare earth alloy magnet has a composition represented by the general formula: (Fe1-mTm)100-x-y-zQxRyMz, where T is at least one element selected from the group consisting of Co and Ni; Q is at least one element selected from the group consisting of B and C; R is at least one rare earth element substantially excluding La and Ce; and M is at least one metal element selected from the group consisting of Ti, Zr and Hf and always includes Ti. In this formula, the mole fractions x, y, z and m meet the inequalities of: 10 at %

摘要翻译： 铁基稀土合金磁体具有由以下通式表示的组成：（Fe 1-m M t）100-xy z Q 其中T是选自Co和Ni中的至少一种元素;其中T是选自Co和Ni中的至少一种元素; Q是选自B和C中的至少一种元素; R是至少一种稀土元素，基本上不含La和Ce; 并且M是选自Ti，Zr和Hf中的至少一种金属元素，并且始终包括Ti。 在该公式中，摩尔分数x，y，z和m满足以下不等式：10 at％

公开(公告)号：US06706124B2

公开(公告)日：2004-03-16

申请号：US09863902

申请日：2001-05-24

申请人： Hirokazu Kanekiyo ,  Toshio Miyoshi ,  Satoshi Hirosawa ,  Yasutaka Shigemoto ,  Yusuke Shioya

发明人： Hirokazu Kanekiyo ,  Toshio Miyoshi ,  Satoshi Hirosawa ,  Yasutaka Shigemoto ,  Yusuke Shioya

IPC分类号： H01F1057

CPC分类号： B82Y25/00 ,  H01F1/0579 ,  H01F1/058

摘要： An iron-based rare earth alloy magnet has a composition represented by the general formula: (Fe1-mTm)100-x-y-zQxRyMz, where T is at least one element selected from the group consisting of Co and Ni; Q is at least one element selected from the group consisting of B and C; R is at least one rare earth element substantially excluding La and Ce; and M is at least one metal element selected from the group consisting of Ti, Zr and Hf and always includes Ti. In this formula, the mole fractions x, y, z and m meet the inequalities of: 10 at %

摘要翻译： 铁系稀土类合金磁铁具有由通式（Fe1-mTm）100-x-y-zQxRyMz表示的组成，其中T为选自Co和Ni中的至少一种元素; Q是选自B和C中的至少一种元素; R是至少一种稀土元素，基本上不含La和Ce; 并且M是选自Ti，Zr和Hf中的至少一种金属元素，并且始终包括Ti。 在该公式中，摩尔分数x，y，z和m满足以下不等式：10 at％

公开(公告)号：US07988797B2

公开(公告)日：2011-08-02

申请号：US12781093

申请日：2010-05-17

申请人： Yasutaka Shigemoto ,  Satoshi Hirosawa ,  Toshio Miyoshi

发明人： Yasutaka Shigemoto ,  Satoshi Hirosawa ,  Toshio Miyoshi

IPC分类号： H01F1/057 ,  H01F1/058

CPC分类号： B82Y25/00 ,  B22D11/0611 ,  H01F1/0579 ,  H01F1/058 ,  H01F41/0253

摘要： A nanocomposite magnet according to the present invention has a composition represented by the general formula: RxQyMz(Fe1-mTm)bal, where R is at least one rare-earth element, Q is at least one element selected from the group consisting of B and C, M is at least one metal element that is selected from the group consisting of Al, Si, Ti, V, Cr, Mn, Cu, Zn, Ga, Zr, Nb, Mo, Ag, Hf, Ta, W, Pt, Au and Pb and that always includes Ti, and T is at least one element selected from the group consisting of Co and Ni. The mole fractions x, y, z and m satisfy the inequalities of 6 at %≦x

摘要翻译： 根据本发明的纳米复合磁体具有由以下通式表示的组成：RxQyMz（Fe1-mTm）bal，其中R是至少一种稀土元素，Q是选自B和 C，M是选自Al，Si，Ti，V，Cr，Mn，Cu，Zn，Ga，Zr，Nb，Mo，Ag，Hf，Ta，W，Pt中的至少一种金属元素 ，Au和Pb，并且总是包括Ti，T是选自Co和Ni中的至少一种元素。 摩尔分数x，y，z和m满足不等式6 at％＆nlE; x <10 at％，10 at％＆nlE; y＆nlE; 17 at％，0.5 at％＆nlE; z＆nlE; 6 at％和0＆nlE; m＆ ; 0.5。 纳米复合磁体包括磁耦合在一起的硬磁相和软磁相。 硬磁相由R2Fe14B型化合物制成，软磁相包括α-Fe相和居里温度为610℃〜700℃（ω相）为主相的结晶相 。

公开(公告)号：US20070131309A1

公开(公告)日：2007-06-14

申请号：US10596371

申请日：2004-12-06

申请人： Yasutaka Shigemoto ,  Satoshi Hirosawa ,  Toshio Miyoshi

发明人： Yasutaka Shigemoto ,  Satoshi Hirosawa ,  Toshio Miyoshi

IPC分类号： H01F1/057

CPC分类号： B82Y25/00 ,  B22D11/0611 ,  H01F1/0579 ,  H01F1/058 ,  H01F41/0253

摘要： A nanocomposite magnet according to the present invention has a composition represented by the general formula: RxQyMz(Fe1−mTm)bal, where R is at least one rare-earth element, Q is at least one element selected from the group consisting of B and C, M is at least one metal element that is selected from the group consisting of Al, Si, Ti, V, Cr, Mn, Cu, Zn, Ga, Zr, Nb, Mo, Ag, Hf, Ta, W, Pt, Au and Pb and that always includes Ti, and T is at least one element selected from the group consisting of Co and Ni. The mole fractions x, y, z and m satisfy the inequalities of 6 at % ≦x

摘要翻译： 根据本发明的纳米复合材料磁体具有由以下通式表示的组成：R 1，X 3，M z（Fe 1） 其中R是至少一种稀土元素，Q是选自B和B中的至少一种元素，其中R是至少一个稀土元素， C，M是选自Al，Si，Ti，V，Cr，Mn，Cu，Zn，Ga，Zr，Nb，Mo，Ag，Hf，Ta，W，Pt中的至少一种金属元素 ，Au和Pb，并且总是包括Ti，T是选自Co和Ni中的至少一种元素。 摩尔分数x，y，z和m满足不等式6 at％<= x <10 at％，10 at％<= y <= 17 at％，0.5 at％<= z <= 6 at％和0 <= m <= 0.5。 纳米复合磁体包括磁耦合在一起的硬磁相和软磁相。 硬磁相由R 2 Fe 14 B型化合物制成，软磁相包括α-Fe相和具有居里温度的结晶相 以610℃至700℃（ω相）为主要相。

公开(公告)号：US06302972B1

公开(公告)日：2001-10-16

申请号：US09455469

申请日：1999-12-06

申请人： Satoshi Hirosawa ,  Hirokazu Kanekiyo ,  Yasutaka Shigemoto

发明人： Satoshi Hirosawa ,  Hirokazu Kanekiyo ,  Yasutaka Shigemoto

IPC分类号： H01F1057

CPC分类号： B82Y25/00 ,  H01F1/0571 ,  H01F1/0579

摘要： An inventive material alloy for a nanocomposite magnet is represented by a general formula Fe100−x−yRxBy, Fe100−x−y−zRxByCoz, Fe100−x−y−uRxByMu or Fe100−x−y−z−uRxByCozMu. R is a rare-earth element. 90 atomic percent or more of R is Pr and/or Nd, while equal to or larger than 0 atomic percent and less than 10 atomic percent of R is another lanthanoid and/or Y. M is at least one element selected from the group consisting of Al, Si, Ti, V, Cr, Mn, Ni, Cu, Ga, Zr, Nb, Mo, Hf, Ta, W, Pt, Pb, Au and Ag. The molar fractions x, y, z and u meet the inequalities of 2≦x≦6, 16≦y≦20, 0.2≦z≦7 and 0.01≦u≦7, respectively. The alloy includes a metastable phase Z represented by at least one of a plurality of Bragg reflection peaks observable by X-ray diffraction analysis. The at least one peak corresponds to a lattice spacing of 0.179 nm±0.005 nm. An intensity of the Bragg reflection peak represents 5 to 200 percent, both inclusive, of a maximum intensity of a halo pattern. An intensity of a (110) Bragg reflection peak of body-centered Fe represents less than 5 percent of the maximum intensity of the halo pattern.

摘要翻译： 用于纳米复合磁体的本发明的材料合金由通式Fe100-x-yRxBy，Fe100-x-y-zRxByCoz，Fe100-x-y-uRxByMu或Fe100-x-y-z-uRxByCozMu表示。 R是稀土元素。 R原子百分比以上为90原子％以上，R为10原子％以上，R为10原子％以下，R为10原子％以上，R为镧系元素和/或Y。 的Al，Si，Ti，V，Cr，Mn，Ni，Cu，Ga，Zr，Nb，Mo，Hf，Ta，W，Pt，Pb，Au和Ag。 摩尔分数x，y，z和u分别满足2 <= x <= 6,16 <= y <= 20，0.2 <= z <= 7和0.01 <= u <7的不等式。 该合金包括通过X射线衍射分析可观察到的多个布拉格反射峰中的至少一个所表示的亚稳相Z。 至少一个峰对应于0.179nm±0.005nm的晶格间距。 布拉格反射峰的强度表示晕圈图案的最大强度的5〜200％。 以身体为中心的Fe的（110）布拉格反射峰的强度小于光晕图案的最大强度的5％。

公开(公告)号：US06585831B2

公开(公告)日：2003-07-01

申请号：US09741080

申请日：2000-12-21

申请人： Yasutaka Shigemoto ,  Satoshi Hirosawa

发明人： Yasutaka Shigemoto ,  Satoshi Hirosawa

IPC分类号： H01F1057

CPC分类号： B82Y25/00 ,  B22F9/04 ,  B22F2009/041 ,  B22F2998/00 ,  B22F2998/10 ,  H01F1/0571 ,  H01F1/0579 ,  H01F1/15333 ,  H01F1/15341 ,  H01F1/1535 ,  C22C1/0441 ,  B22F1/0044 ,  B22F1/0085

摘要： A method of making an iron base magnetic material alloy powder includes the steps of: preparing an iron base magnetic material alloy containing at least 50% by mass of iron; and pulverizing the magnetic material alloy using a pin mill. A portion of the mill, which comes into contact with the magnetic material alloy, is made of a cemented carbide material at least partially.

摘要翻译： 制备铁基磁性材料合金粉末的方法包括以下步骤：制备含有至少50质量％的铁的铁基磁性材料合金; 并使用销磨机粉碎磁性材料合金。 与磁性材料合金接触的磨机的一部分至少部分地由硬质合金材料制成。

公开(公告)号：US06471786B1

公开(公告)日：2002-10-29

申请号：US09662750

申请日：2000-09-15

申请人： Yasutaka Shigemoto ,  Satoshi Hirosawa ,  Hirokazu Kanekiyo

发明人： Yasutaka Shigemoto ,  Satoshi Hirosawa ,  Hirokazu Kanekiyo

IPC分类号： H01F1057

CPC分类号： B82Y25/00 ,  B22F1/0044 ,  B22F9/007 ,  C22C1/0441 ,  H01F1/0579 ,  Y10S977/773 ,  Y10S977/777 ,  Y10S977/893

摘要： The inventive method for preparing nanocomposite magnet powder includes the step of preparing material alloy powder for a nanocomposite magnet represented by a general formula Fe100−x−y−z−uRxByCozMu where R is a rare-earth element of which 90-100 atomic percent is Pr and/or Nd while 0-10 atomic percent is another lanthanoid and/or Y, and the molar fractions x, y, z and u meet the inequalities of 2≦x≦6, 16≦y≦20, 0.2≦z≦7 and 0.01≦u≦7, respectively. The powder includes a metastable phase and an amorphous structure existing in a metal structure. Heat treatment is performed for the material alloy powder to crystallize Fe3B and Fe—R—B compounds from the amorphous structure. An integral value of the difference between a temperature-time curve represented by the temperature of the material alloy powder as a function of the heat treatment time during the heat treatment and a reference temperature-time curve is in a range from 10° C.·sec to 10,000° C.·sec, the reference temperature-time curve being obtained when heat treatment similar to the above heat treatment is performed for an equivalent amount of alloy that has the same composition as the material alloy but does not include the amorphous structure.

摘要翻译： 制备纳米复合磁体粉末的本发明的方法包括制备由通式Fe100-xyz-uRxByCozMu表示的纳米复合磁体的材料合金粉末的步骤，其中R是稀土元素，其中90-100原子％为Pr和/或 Nd，而0-10原子％是另一种镧系元素和/或Y，并且摩尔分数x，y，z和u满足不等式2 <= x <= 6，16 <= y <= 20，0.2 <= z <= 7和0.01 <= u <= 7。 粉末包括存在于金属结构中的亚稳相和无定形结构。 对材料合金粉末进行热处理，以使非晶结构中的Fe 3 B和Fe-R-B化合物结晶。 以材料合金粉末的温度表示的温度 - 时间曲线与热处理期间的热处理时间的函数和基准温度 - 时间曲线之间的差的积分值在10℃的范围内。 秒至10,000℃...秒，对于与材料合金具有相同组成但不包括无定形结构的等效量的合金进行与上述热处理相似的热处理时获得的参考温度 - 时间曲线 。

公开(公告)号：US06790296B2

公开(公告)日：2004-09-14

申请号：US09986390

申请日：2001-11-08

申请人： Hirokazu Kanekiyo ,  Toshio Miyoshi ,  Satoshi Hirosawa

发明人： Hirokazu Kanekiyo ,  Toshio Miyoshi ,  Satoshi Hirosawa

IPC分类号： H01F1057

CPC分类号： B82Y25/00 ,  B22F2009/041 ,  B22F2998/10 ,  H01F1/0571 ,  H01F1/0578 ,  H01F1/0579 ,  H01F1/058 ,  B22F9/008 ,  B22F9/04 ,  B22F9/007

摘要： A method of making a material alloy for an iron-based rare earth magnet includes the step of forming a melt of an alloy with a composition of (Fe1-mTm)100-x-y-z-n(B1-pCp)xRyTizMn. T is Co and/or Ni; R is at least one element selected from Y (yttrium) and the rare earth elements; and M is at least one element selected from Al, Si, V, Cr, Mn, Ni, Cu, Zn, Ga, Zr, Nb, Mo, Ag, Hf, Ta, W, Pt, Au and Pb, wherein the following inequalities are satisfied: 10

摘要翻译： 一种制备铁基稀土磁体的材料合金的方法包括以（Fe1-mTm）100-x-y-z-n（B1-pCp）xRyTizMn的组成形成合金熔体的步骤。 T是Co和/或Ni; R是选自Y（钇）和稀土元素中的至少一种元素; 并且M是选自Al，Si，V，Cr，Mn，Ni，Cu，Zn，Ga，Zr，Nb，Mo，Ag，Hf，Ta，W，Pt，Au和Pb中的至少一种元素，其中以下 满足不等式：10

公开(公告)号：US06890392B2

公开(公告)日：2005-05-10

申请号：US10222822

申请日：2002-08-19

申请人： Hirokazu Kanekiyo ,  Toshio Miyoshi ,  Satoshi Hirosawa

发明人： Hirokazu Kanekiyo ,  Toshio Miyoshi ,  Satoshi Hirosawa

IPC分类号： H01F1/057 ,  H01F1/058 ,  H01F1/053

CPC分类号： B82Y25/00 ,  B22F2009/041 ,  B22F2998/10 ,  H01F1/0571 ,  H01F1/0578 ,  H01F1/0579 ,  H01F1/058 ,  B22F9/008 ,  B22F9/04 ,  B22F9/007

摘要： A method of making a material alloy for an iron-based rare earth magnet includes the step of forming a melt of an alloy with a composition of (Fe1-mTm)100-x-y-z-n(B1-pCp)xRyTi2Mn. T is Co and/or Ni; R is at least one element selected from Y (yttrium) and the rare earth elements; and M is at least one element selected from Al, Si, V, Cr, Mn, Ni, Cu, Zn, Ga, Zr, Nb, Mo, Ag, Hf, Ta, W, Pt, Au and Pb, wherein the following inequalities are satisfied: 10

摘要翻译： 一种制备铁基稀土磁体的材料合金的方法包括以下组合物形成合金熔体的步骤：（Fe 1-m M t） ）100-xyzn（B 1-p C p）x x X x X z Ti 2 N n N n。 T是Co和/或Ni; R是选自Y（钇）和稀土元素中的至少一种元素; 并且M是选自Al，Si，V，Cr，Mn，Ni，Cu，Zn，Ga，Zr，Nb，Mo，Ag，Hf，Ta，W，Pt，Au和Pb中的至少一种元素，其中以下 满足不等式：10

公开(公告)号：US20090129966A1

公开(公告)日：2009-05-21

申请号：US11571071

申请日：2006-03-22

申请人： Hirokazu Kanekiyo ,  Toshio Miyoshi ,  Satoshi Hirosawa

发明人： Hirokazu Kanekiyo ,  Toshio Miyoshi ,  Satoshi Hirosawa

IPC分类号： B22F1/00 ,  H01F1/01 ,  C22F1/16 ,  C21D1/00 ,  C22F1/10

CPC分类号： H01F1/0578 ,  B22F9/008 ,  B22F2009/048 ,  B22F2998/10 ,  B82Y25/00 ,  C21D8/1211 ,  C21D8/1272 ,  C21D2201/03 ,  C22C1/0491 ,  C22C33/0257 ,  C22C38/005 ,  C22C38/12 ,  C22C38/14 ,  C22C2200/04 ,  C22C2202/02 ,  H01F1/0579 ,  H01F1/058 ,  B22F9/007 ,  B22F9/04 ,  B22F1/0059 ,  B22F3/02

摘要： An iron-based rare-earth nanocomposite magnet according to the present invention includes an Nd2Fe14B phase and an α-Fe phase and has a composition represented by the compositional formula: T100-x-y-z-n(B1-qCq)xRyTizMn, where T is at least one transition metal element selected from the group consisting of Fe, Co and Ni and always including Fe, R is at least one rare-earth element including substantially no La or Ce, and M is at least one metal element selected from the group consisting of Al, Si, V, Cr, Mn, Cu, Zn, Ga, Zr, Nb, Mo, Ag, Hf, Ta, W, Pt, Au and Pb, and the mole fractions x, y, z, n and q satisfy the inequalities of: 4 at %≦x≦10 at %, 6 at %≦y≦10 at %, 0.05 at %≦z≦5 at %, 0 at %≦n≦10 at %, and 0.05≦q≦0.5, respectively. The magnet includes 5 vol % to 60 vol % of α-Fe phase with an average crystal grain size of 1 nm to 50 nm and 40 vol % to 90 vol % of Nd2Fe14B phase with an average crystal grain size of 5 nm to 100 nm. A non-magnetic phase including at least Ti and C (carbon) is present on the grain boundary between the α-Fe and Nd2Fe12B phases.

摘要翻译： 根据本发明的铁基稀土纳米复合磁体包括Nd 2 Fe 14 B相和α-Fe相，并且具有由组成式T100-xyzn（B1-qCq）xRyTizMn表示的组成，其中T是至少一个 选自Fe，Co和Ni的过渡金属元素，并且总是包括Fe，R是至少一种稀土元素，其基本上不含La或Ce，M是至少一种选自Al ，Si，V，Cr，Mn，Cu，Zn，Ga，Zr，Nb，Mo，Ag，Hf，Ta，W，Pt，Au和Pb，摩尔分数x，y，z，n和q满足 不等式：4 at％<= x <= 10 at％，6 at％<= y <= 10 at％，0.05 at％<= z <= 5 at％，0 at％<= n <= 10 at％ ，0.05 <= q <= 0.5。 该磁体包括5体积％至60体积％的α-Fe相，平均晶粒尺寸为1nm至50nm，40体积％至90体积％的平均晶粒尺寸为5nm至100nm的Nd 2 Fe 14 B相 。 在α-Fe和Nd2Fe12B相之间的晶界处存在至少包含Ti和C（碳）的非磁性相。