-
1.发明授权Hard magnetic alloy, hard magnetic alloy compact and method for producing the same 失效硬磁合金，硬磁合金紧凑型及其制造方法公开(公告)号：US06692582B1
公开(公告)日：2004-02-17
申请号：US09697632
申请日：2000-10-26
IPC分类号： H01F100
CPC分类号： B82Y25/00 , H01F1/0579
摘要： A hard magnetic alloy in accordance with the present invention is composed of at least element T selected from the group consisting of Fe, Co and Ni, at least one rare earth element R, and boron (B). The hard magnetic alloy has an absolute value of the temperature coefficient of magnetization of 0.15%/° C. or less and a coercive force of 1 kOe, when being used in a shape causing a permeance factor of 2 or more. A hard magnetic alloy compact in accordance with the present invention has a texture, in which at least a part or all of the texture comprises an amorphous phase or fine crystalline phase having an average crystal grain size of 100 nm or less, is subjected to crystallization or grain growth under stress, such that a mixed phase composed of a soft magnetic or semi-hard magnetic phase and a hard magnetic phase is formed in the texture, and anisotropy is imparted to the crystal axis of the hard magnetic phase.
摘要翻译： 根据本发明的硬磁合金由至少选自Fe，Co和Ni，至少一种稀土元素R和硼（B）的元素T组成。 当使用导磁系数为2以上的形状时，硬磁合金的磁化温度的绝对值为0.15％/℃以下，矫顽力为1kOe。 根据本发明的硬磁合金压块具有其中至少部分或全部组织包含平均晶粒尺寸为100nm以下的非晶相或细结晶相的织构，进行结晶化 或在应力下的晶粒生长，使得在织构中形成由软磁性或半硬磁性相和硬磁性相组成的混合相，并且赋予硬磁相的晶轴各向异性。
-
2.发明授权公开(公告)号：US06171410B2
公开(公告)日：2001-01-09
申请号：US09026853
申请日：1998-02-20
IPC分类号： H01F104
CPC分类号： B82Y25/00 , H01F1/0579
摘要： A hard magnetic alloy in accordance with the present invention is composed of at least element T selected from the group consisting of Fe, Co and Ni, at least one rare earth element R, and boron (B). The hard magnetic alloy has an absolute value of the temperature coefficient of magnetization of 0.15%/° C. or less and a coercive force of 1 kOe, when being used in a shape causing a permeance factor of 2 or more. A hard magnetic alloy compact in accordance with the present invention has a texture, in which at least a part or all of the texture comprises an amorphous phase or fine crystalline phase having an average crystal grain size of 100 nm or less, is subjected to crystallization or grain growth under stress, such that a mixed phase composed of a soft magnetic or semi-hard magnetic phase and a hard magnetic phase is formed in the texture, and anisotropy is imparted to the crystal axis of the hard magnetic phase.
摘要翻译： 根据本发明的硬磁合金由至少选自Fe，Co和Ni，至少一种稀土元素R和硼（B）的元素T组成。 当使用导磁系数为2以上的形状时，硬磁合金的磁化温度的绝对值为0.15％/℃以下，矫顽力为1kOe。 根据本发明的硬磁合金压块具有其中至少部分或全部组织包含平均晶粒尺寸为100nm以下的非晶相或细结晶相的织构，进行结晶化 或在应力下的晶粒生长，使得在织构中形成由软磁性或半硬磁性相和硬磁性相组成的混合相，并且赋予硬磁相的晶轴各向异性。
-
公开(公告)号：US6034450A
公开(公告)日：2000-03-07
申请号：US111991
申请日：1998-07-08
CPC分类号： B82Y25/00 , H01F1/0571 , H01F1/0579 , H02K1/02 , H02K37/18
摘要： In a stepping motor having a stator provided with an electromagnet and a rotor composed of a hard magnetic alloy, the hard magnetic alloy comprises at least one element T of Fe and Co, at least one element R of rare earth elements and B, has a remanence ratio of at least 0.7, remanent magnetization (Ir) of at least 120 emu/g and coercive force (iHc) of at least 1 kOe and includes a fine crystalline phase having an average crystal grain size of 100 nm or less as a main phase. The hard magnetic alloy is solidified and compacted by making use of a softening phenomenon which arises when the amorphous phase contained in the structure of the hard magnetic alloy is crystallized. A method of manufacturing the hard magnetic alloy used to the stepping motor is also disclosed.
摘要翻译： 在具有设置有电磁体的定子和由硬磁合金构成的转子的步进电机中，硬磁合金包括至少一种Fe和Co的元素T，稀土元素和B的至少一个元素R具有 至少为0.7的剩磁比（Ir）至少为120emu / g，矫顽磁力（iHc）为至少1kOe，并且包括平均晶粒尺寸为100nm以下的细晶相为主 相。 通过利用在硬质合金的结构中包含的非晶相结晶时产生的软化现象，硬磁性合金被固化和压实。 还公开了用于步进电动机的硬磁合金的制造方法。
-
公开(公告)号：US06312530B1
公开(公告)日：2001-11-06
申请号：US09173292
申请日：1998-10-14
IPC分类号： H01F1055
CPC分类号： H01L41/20 , H01F1/0306 , H01F1/15308 , H01F1/15325
摘要： A magnetostrictive material is produced by annealing an alloy consisting essentially of an amorphous phase and comprising Fe, Dy, and Tb as primary components, at least one element selected from the group consisting of Ta, Nb, Zr, Hf, V, W, Mo, Si and B and/or at least one element selected from the group consisting of Cr, Al, Ga, Ge, Cu, Au, Ag, Pt, Pd, Os, Ir, and Rh.
摘要翻译： 一种磁致伸缩材料是通过退火基本上由非晶相组成并包含Fe，Dy和Tb作为主要成分的合金，至少一种选自Ta，Nb，Zr，Hf，V，W，Mo ，Si和B和/或选自Cr，Al，Ga，Ge，Cu，Au，Ag，Pt，Pd，Os，Ir和Rh中的至少一种元素。
-
公开(公告)号：US06235129B1
公开(公告)日：2001-05-22
申请号：US09201922
申请日：1998-12-01
IPC分类号： H01F1057
CPC分类号： H01F1/0571 , H01F1/058
摘要： A hard magnetic material contains Co as a main component, at least one element Q of P, C, Si and B, and Sm, and an amorphous phase and a fine crystalline phase. The texture of the hard magnetic material contains 50% by volume or more of fine crystalline phase having an average crystal grain size of 100 nm or less, and has a mixed phase state containing a soft magnetic phase and a hard magnetic phase. Further, anisotropy is imparted to the crystal axis of the hard magnetic phase.
摘要翻译： 硬磁性材料包含Co作为主要成分，至少有一个P，C，Si和B的元素Q和Sm，以及非晶相和细晶相。 硬磁性材料的质地含有平均结晶粒径为100nm以下的微细晶相的50体积％以上，具有含有软磁性相和硬磁性相的混合相状态。 此外，赋予硬磁相的晶轴各向异性。
-
公开(公告)号：US06425961B1
公开(公告)日：2002-07-30
申请号：US09312576
申请日：1999-05-14
申请人： Akinori Kojima , Akihiro Makino , Yutaka Yamamoto , Akihisa Inoue
发明人： Akinori Kojima , Akihiro Makino , Yutaka Yamamoto , Akihisa Inoue
IPC分类号： H01F1053
CPC分类号： B82Y25/00 , B22F1/0003 , B22F1/0044 , B22F2999/00 , C22C1/0441 , H01F1/0576 , H01F1/0579 , B22F9/002 , B22F3/10 , B22F9/007
摘要： The present invention provides a method for producing a composite hard magnetic material, wherein a composite powder—prepared by mixing; a composite hard magnetic material produced by consolidating a composite powder prepared by mixing an alloy powder having an amorphous phase containing a main component Co and at least Sm, and an alloy powder comprising an amorphous phase as a principal phase and containing at least Fe and/or Co, rare earth elements R and B; an alloy powder having an amorphous phase containing a main component Co and at least Sm; and an alloy powder having an amorphous phase containing at least Fe and/or Co, rare earth elements R and B—is consolidated by taking advantage of softening phenomenon caused by crystallization of the amorphous phase in the alloy powder comprising an amorphous phase as a principal phase.
摘要翻译： 本发明提供一种复合硬磁性材料的制造方法，其中通过混合制备的复合粉末; 通过将通过混合具有含有主成分Co和至少Sm的非晶相的合金粉末制备的复合粉末和包含非晶相作为主相的合金粉末而制成的复合硬磁性材料，并且至少含有Fe和/ 或Co，稀土元素R和B; 具有含有主成分Co和至少Sm的非晶相的合金粉末; 并且具有至少包含Fe和/或Co的非晶相的稀土元素R和B的合金粉末通过利用由非晶相作为主要的合金粉末中的非晶相的结晶引起的软化现象而被固化 相。
-
公开(公告)号：US6083325A
公开(公告)日：2000-07-04
申请号：US893768
申请日：1997-07-11
申请人： Teruo Bitoh , Yasuo Hayakawa , Takashi Hatanai , Akihiro Makino , Akihisa Inoue , Tsuyoshi Masumoto
发明人： Teruo Bitoh , Yasuo Hayakawa , Takashi Hatanai , Akihiro Makino , Akihisa Inoue , Tsuyoshi Masumoto
CPC分类号： H01F1/15308 , H01F1/15341
摘要： A method for making a Fe-based soft magnetic alloy where an alloy melt is injected onto a moving cooling unit to form an amorphous alloy ribbon. The alloy melt contains Fe as a main component, B and at least one metallic element M selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Mo and W, the composition of the alloy melt being selected such that the resulting amorphous alloy ribbon is characterized by a first crystallization temperature at which fine grain bcc Fe crystallites precipitate, and a second crystallization temperature at which a compound phase containing Fe--B and/or Fe--M precipitates. The amorphous alloy ribbon is then annealed at a temperature which is higher that the first crystallization temperature and less than the second crystallization temperature for an annealing time in the range of 0 minutes to 20 minutes.
摘要翻译： 一种制造Fe基软磁合金的方法，其中将合金熔体注入到移动的冷却单元上以形成非晶合金带。 合金熔体含有Fe作为主要成分，B和选自Ti，Zr，Hf，V，Nb，Ta，Mo和W中的至少一种金属元素M，选择合金熔体的组成使得 所得到的非晶合金带的特征在于细晶粒bcc Fe微晶析出的第一结晶温度和含有Fe-B和/或Fe-M的化合物相析出的第二结晶温度。 然后在0分钟至20分钟的范围内，在比第一结晶温度高且低于第二结晶温度的退火时间的温度下退火非晶态合金带。
-
8.发明授权Magneto-impedance element, and azimuth sensor, autocanceler and magnetic head using the same 失效磁阻元件，方位角传感器，自动校正器和使用磁头的磁头公开(公告)号：US06232775B1
公开(公告)日：2001-05-15
申请号：US09211126
申请日：1998-12-14
申请人： Yutaka Naitoh , Teruo Bitoh , Takashi Hatanai , Akihiro Makino , Junichi Ouchi , Shinichi Sasaqawa , Akihisa Inoue , Tsuyoshi Masumoto
发明人： Yutaka Naitoh , Teruo Bitoh , Takashi Hatanai , Akihiro Makino , Junichi Ouchi , Shinichi Sasaqawa , Akihisa Inoue , Tsuyoshi Masumoto
IPC分类号： G01R3302
CPC分类号： C22C38/14 , C22C38/10 , C22C38/12 , C22C38/16 , C22C45/02 , G01R33/02 , G11B5/127 , G11B5/33 , H01F1/15308
摘要： A magneto-impedance element comprises an alloy composed of at least one of Fe, Co and Ni. The alloy has a mixed texture of an amorphous phase and a fine crystalline phase having an average crystal grain size of 50 nm or less. The magneto-impedance element shows a change in impedance in response to an external magnetic field by applying an alternating current. The magneto-impedance element is applied to an azimuth sensor, an autocanceler, or a magnetic head.
摘要翻译： 磁阻元件包括由Fe，Co和Ni中的至少一种构成的合金。 该合金具有非晶相和平均晶粒尺寸为50nm以下的细晶相的混合组织。 磁阻抗元件通过施加交流电来显示响应于外部磁场的阻抗变化。 磁阻元件被施加到方位传感器，自动扫描器或磁头。
-
公开(公告)号：US6001193A
公开(公告)日：1999-12-14
申请号：US827322
申请日：1997-03-25
CPC分类号： B82Y25/00 , H01F1/0571 , H01F1/0576 , H01F1/0579 , Y10S977/838
摘要： A method of producing a hard magnetic alloy compact at low cost, in which an alloy that contains not less than 50% by weight of an amorphous phase and exhibits hard magnetism in a crystallized state is solidified and molded at around its crystallization temperature under applied pressure by utilizing the softening phenomenon occurring during a crystallization process. The resulting compact has high hard magnetic characteristics and can be applied as permanent magnet members such as in motors, actuators, and speakers.
摘要翻译： 制造低成本的硬磁性合金成形体的方法，其中含有不少于50重量％的非晶相并且在结晶状态下显示出硬磁性的合金在施加压力下在其结晶温度附近固化和模制 通过利用在结晶过程中发生的软化现象。 所得到的压块具有高的硬磁特性，并且可以用作诸如电动机，致动器和扬声器中的永久磁体部件。
-
10.发明授权Metallic glass, magnetic recording medium using the same, and method of manufacturing the magnetic recording medium 有权金属玻璃，使用其的磁记录介质以及制造磁记录介质的方法公开(公告)号：US08377580B2
公开(公告)日：2013-02-19
申请号：US12678291
申请日：2008-09-17
申请人： Akihiro Makino , Akihisa Inoue , Wei Zhang , Hisamichi Kimura
发明人： Akihiro Makino , Akihisa Inoue , Wei Zhang , Hisamichi Kimura
CPC分类号： G11B5/653 , C22C33/003 , C22C45/003 , C22C45/02 , G11B5/855 , H01F1/01 , H01F1/068 , H01F1/15333 , H01F10/131 , H01F41/34
摘要： A magnetic recording medium 1 includes a substrate 11; and a metallic glassy layer 12 that is arranged on the substrate 11 and has a plurality of convex portions 12A and concave portions 12B. The metallic glassy layer 12 has a chemical composition represented by any one of the formulae (1) to (3): FemPtnSixByPz (wherein, 20
摘要翻译： 磁记录介质1包括基板11; 以及设置在基板11上并具有多个凸部12A和凹部12B的金属玻璃层12。 金属玻璃层12具有由式（1）至（3）中的任一个表示的化学组成：FemPtnSixByPz（其中，20
-
-
-
-
-
-
-
-
-
搜索结果
211 条记录 (耗时 0.027 秒)