Low magnetostriction amorphous metal alloys

    公开(公告)号:US4566917A

    公开(公告)日:1986-01-28

    申请号:US470863

    申请日:1983-02-28

    IPC分类号: C22C45/04 H01F1/153 C22C19/07

    CPC分类号: C22C45/04 H01F1/15316

    摘要: Cobalt rich amorphous metal alloys have a value of magnetostriction of about -6.times.10.sup.-6 to +4.times.10.sup.-6 and a saturation induction of about 0.1 to 1.0T. The alloys, especially suited for soft magnetic applications, have the formula (Co.sub.1-x T.sub.x).sub.100-b (B.sub.1-y Y.sub.y).sub.b, where T is at least one of Cr and V, Y is at least one of carbon and silicon, B is boron, x ranges from about 0.05 to 0.25, y ranges from about 0 to 0.75 and b ranges from about 14 to 28.

    Glassy alloys containing cobalt, nickel and iron having near-zero
magnetostriction and high saturation induction
    2.
    发明授权
    Glassy alloys containing cobalt, nickel and iron having near-zero magnetostriction and high saturation induction 失效
    含有近零磁致伸缩和高饱和感应的钴,镍和铁的玻璃状合金

    公开(公告)号:US4150981A

    公开(公告)日:1979-04-24

    申请号:US824590

    申请日:1977-08-15

    CPC分类号: C22C45/04 H01F1/153 H01L41/20

    摘要: Glassy alloys containing cobalt, nickel and iron and evidencing near-zero magnetostriction and high saturation induction are disclosed. The glassy alloys consist essentially of about 13 to 73 atom percent cobalt, about 5 to 50 atom percent nickel, about 2 to 17 atom percent iron, with the proviso that the total of cobalt, nickel and iron is about 80 atom percent, and the balance essentially boron plus incidental impurities. The magnetostriction of the glassy alloys ranges from about +3.times.10.sup.-6 to -3.times.10.sup.-6 and the saturation induction is at least about 8 kGauss.

    摘要翻译: 公开了含有钴,镍和铁的玻璃状合金,并证明了近零磁致伸缩和高饱和感应。 玻璃状合金基本上由约13至73原子%的钴,约5至50原子%的镍,约2至17原子%的铁组成,条件是钴,镍和铁的总量为约80原子%,并且 平衡基本上硼加附带杂质。 玻璃态合金的磁致伸缩范围为约+ 3×10 -6至-3×10 -6,饱和感应为至少约8k高斯。

    Energy harvester utilizing external magnetic field
    3.
    发明授权
    Energy harvester utilizing external magnetic field 有权
    能量采集器利用外部磁场

    公开(公告)号:US07808236B1

    公开(公告)日:2010-10-05

    申请号:US11652272

    申请日:2007-01-11

    IPC分类号: G01R33/02 G01R29/22

    CPC分类号: G01R33/18 H01L41/00

    摘要: Apparatus and method for harvesting energy from the environment and/or other external sources and converting it to useful electrical energy. The harvester does not contain a permanent magnet or other local field source but instead relies on the earth's magnetic field of another source of a magnetic field that is external to the sensing device. One advantage of these new harvesters is that they can be made smaller and lighter than energy harvesters that contain a magnet and/or an inertial mass.

    摘要翻译: 从环境和/或其他外部来源收集能量并将其转换为有用的电能的装置和方法。 收割机不包含永磁体或其他局部场源,而是依赖于感测装置外部的另一磁场源的地磁场。 这些新收割机的一个优点是,它们可以比含有磁体和/或惯性质量的能量收集器更小更轻。

    High efficiency, inductive vibration energy harvester
    4.
    发明授权
    High efficiency, inductive vibration energy harvester 有权
    高效率感应式振动能量收割机

    公开(公告)号:US07569952B1

    公开(公告)日:2009-08-04

    申请号:US10826852

    申请日:2004-04-16

    IPC分类号: H02K33/00

    CPC分类号: H02K35/02 H01F7/1615

    摘要: An inductive energy harvester comprises a permanent magnet magnetic field source attached by a pair of compact spiral disk springs to an induction coil. The springs position the magnet so that the induction coil surrounds one end of the magnet where the flux density is greatest. In addition, the magnetic flux emerging from that end of the magnet is enhanced by a disk of magnetic material having high permeability and high flux density. In another embodiment, the magnetic field source comprises two dipole magnets arranged in opposing flux relationship with a thin layer of high flux density, high magnetic permeability material located in a gap between the magnets.

    摘要翻译: 一种感应式能量收集器包括一个由一对紧凑的螺旋盘弹簧附接到感应线圈的永磁体磁场源。 弹簧定位磁体,使得感应线圈围绕磁体的一端,磁通密度最大。 此外,从磁体的这一端出现的磁通量通过具有高磁导率和高磁通密度的磁性材料盘增强。 在另一个实施例中,磁场源包括两个偶极子磁体,这两个偶极子磁体以位于磁体之间的间隙中的高磁通密度,高磁导率材料薄层相对的磁通关系布置。

    Method for making magnetic oxide precipitates
    6.
    发明授权
    Method for making magnetic oxide precipitates 失效
    制造磁性氧化物沉淀物的方法

    公开(公告)号:US5030332A

    公开(公告)日:1991-07-09

    申请号:US511109

    申请日:1990-04-19

    IPC分类号: C01G49/06 G11B5/68 G11B5/851

    摘要: A mixture including at least one iron oxide and a mon-magnetic matrix material is melted or vaporized and then heat is rapidly removed from the material. The resulting magnetic oxide precipitates are densely packed in the non-magnetic matrix. The precipitates have a narrow particle size distribution which results in a high signal-to-noise ratio when the oxides are used for magnetic recording purposes. The non-magnetic matrix can be removed to yield homogeneous, small particle iron oxide containing magnetic powder. Alternatively, the non-magnetic matrix/iron oxide material can be processed to yield a shaped recording medium.

    摘要翻译: 将包含至少一种氧化铁和单磁性基体材料的混合物熔化或汽化,然后迅速从材料中除去热。 所得到的磁性氧化物沉淀物密集地包装在非磁性基质中。 当氧化物用于磁记录目的时,沉淀物具有窄的粒度分布,导致高的信噪比。 可以除去非磁性基质以产生均匀的含有磁粉的小颗粒氧化铁。 或者,可以处理非磁性基质/氧化铁材料以产生成形的记录介质。

    Magnetic glassy metal alloy sheets with improved soft magnetic properties
    7.
    发明授权
    Magnetic glassy metal alloy sheets with improved soft magnetic properties 失效
    具有改善软磁性能的磁性玻璃状金属合金薄片

    公开(公告)号:US4268325A

    公开(公告)日:1981-05-19

    申请号:US5045

    申请日:1979-01-22

    CPC分类号: C21D1/04 C22C45/008 H01F1/153

    摘要: A magnetic glassy metal alloy sheet is annealed at elevated temperature in a first magnetic field oriented in a direction substantially normal to the plane of the sheet. A second anneal may be performed in a weaker magnetic field in a direction substantially normal to the first field to minimize AC hysteresis losses. The annealed magnetic glassy metal alloy sheet has improved soft magnetic properties such as low hysteresis losses and may be used for transformer cores and the like.

    摘要翻译: 磁性玻璃状金属合金片材在升高的温度下在基本上垂直于片材平面的方向取向的第一磁场中退火。 可以在基本上垂直于第一场的方向上的较弱磁场中执行第二退火,以最小化AC滞后损耗。 退火的磁性玻璃状金属合金板具有改善的软磁特性,例如低磁滞损耗,并且可用于变压器铁芯等。

    High-strain, magnetic field-controlled actuator materials
    9.
    发明授权
    High-strain, magnetic field-controlled actuator materials 失效
    高应变,磁场控制执行器材料

    公开(公告)号:US5958154A

    公开(公告)日:1999-09-28

    申请号:US914669

    申请日:1997-08-18

    IPC分类号: H01L41/20 H01F1/147

    CPC分类号: H01L41/20

    摘要: Magnetically-controlled actuator materials are provided that produce large actuation stroke, that exhibit fast actuation response time and corresponding high-frequency operation, and that enable efficient actuation energy conversion at convenient operating temperatures. The actuator materials exhibit an austenitic crystal structure above a characteristic phase transformation temperature and exhibit a martensitic twinned crystal structure below the phase transformation temperature. One actuator material provided by the invention is an alloy composition that can be defined generally as (Ni.sub.a Fe.sub.b Co.sub.c).sub.65-x-y (Mn.sub.d Fe.sub.e Co.sub.f).sub.20+x (Ga.sub.g Si.sub.h Al.sub.i).sub.15+y, where x is between about 3 atomic % and about 15 atomic % and y is between about 3 atomic % and about 12 atomic %, and where a+b+c=1, where d+e+f=1, and g+h+i=1. The actuator material is characterized by a magnetocrystalline anisotropy energy that is sufficient for enabling motion of twin boundaries of the martensitic twinned crystal structure in response to application of a magnetic field to the martensitic twinned crystal structure. This enables the material to produce an actuation stroke in response to the magnetic field. Based on this actuation mechanism, the actuator materials of the invention overcome the thermal, stroke, and frequency response limitations typically associated with actuator materials, and enable a class of actuators with large stroke and high speed at convenient temperatures.

    摘要翻译: 提供了磁控制致动器材料,其产生大的致动行程,其表现出快速的致动响应时间和相应的高频操作,并且能够在方便的工作温度下实现有效的致动能量转换。 致动器材料表现出高于特征相变温度的奥氏体晶体结构,并且在相变温度以下显示出马氏体孪晶晶体结构。 由本发明提供的一种致动器材料是可以通常定义为(NiaFebCoc)65-xy(MndFeeCof)20 + x(GagSihAli)15 + y,其中x为约3原子%至约15原子%之间的合金组合物,以及 y在约3原子%至约12原子%之间,其中a + b + c = 1,其中d + e + f = 1,g + h + i = 1。 致动器材料的特征在于磁晶各向异性能量,足以使马氏体孪晶晶体结构的双边界响应于对马氏体孪晶晶体结构施加磁场的运动。 这使得材料能够响应于磁场而产生致动行程。 基于该致动机构,本发明的致动器材料克服了通常与致动器材料相关联的热,冲程和频率响应限制,并且使得能够在方便的温度下具有大冲程和高速的一类致动器。

    Low magnetostriction amorphous metal alloys
    10.
    发明授权
    Low magnetostriction amorphous metal alloys 失效
    低磁致伸缩非晶态金属合金

    公开(公告)号:US4482400A

    公开(公告)日:1984-11-13

    申请号:US133775

    申请日:1980-03-25

    IPC分类号: C22C45/04 H01F1/153 C22C19/07

    CPC分类号: H01F1/15316 C22C45/04

    摘要: Cobalt rich amorphous metal alloys have a value of magnetostriction of about -6.times.10.sup.-6 to +4.times.10.sup.-6 and a saturation induction of about 0.1 to 1.0T. The alloys, especially suited for soft magnetic applications, have the formula (Co.sub.1-x T.sub.x).sub.100-b (B.sub.1-y Y.sub.y).sub.b, where T is at least one of Cr and V, Y is at least one of carbon and silicon, B is boron, x ranges from about 0.05 to 0.25, y ranges from about 0 to 0.75 and b ranges from about 14 to 28.

    摘要翻译: 富钴非晶金属合金具有约-6×10 -6至+ 4×10 -6的磁致伸缩值和约0.1至1.0T的饱和感应值。 特别适用于软磁应用的合金具有式(Co1-xTx)100-b(B1-yYy)b,其中T是Cr和V中的至少一种,Y是碳和硅中的至少一种,B 是硼,x为约0.05至0.25,y为约0至0.75,b为约14至28。