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公开(公告)号：US12104230B2
公开(公告)日：2024-10-01
申请号：US17466784
申请日：2021-09-03
CPC分类号： C22C38/10 , B22F1/05 , C22C38/02 , H02K1/02 , B22F2301/35 , B22F2304/10 , C22C2202/02
摘要： A pressed powder material according to embodiments is a pressed powder material including first magnetic metal particles having a first magnetic metal phase containing Fe and Co; and second magnetic metal particles having a second magnetic metal phase containing Fe, in which when the amounts of Co with respect to the total amounts of Fe and Co of the first and second magnetic metal particles are designated as Co1 and Co2, respectively, the ratio of Co2 to Co1 (Co2/Co1) is from 0 to 0.5, the average value of the ratio of the major axis to the minor axis is 2 or greater for the first magnetic metal particles and 1 or greater for the second magnetic metal particles, the second magnetic metal particles are present between the particles of the first magnetic metal particles, and the average value of the major axis of the second magnetic metal particles is equal to or longer than the average value of the major axis of the first magnetic metal particles.
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2.发明授权公开(公告)号：US12015306B2
公开(公告)日：2024-06-18
申请号：US16536595
申请日：2019-08-09
CPC分类号： H02K1/02 , B22F1/068 , B22F1/08 , B22F1/10 , B22F1/16 , B22F3/02 , B22F3/24 , H01F1/26 , B22F2003/248 , B22F2202/05 , B22F2301/15 , B22F2301/35 , B22F2302/45 , B22F2303/01 , B22F2998/10 , B22F2998/10 , B22F1/10 , B22F3/02
摘要： A plurality of flaky magnetic metal particles have an average thickness of 10 nm to 100 μm, each of the particles having a flat surface; a magnetic metal phase containing at least one element selected from the group consisting of Fe, Co, and Ni; and a difference in coercivity on the basis of direction within the surface, the average value of the ratio of the average length within the surface with respect to the thickness being from 5-10,000. The particles include a particle having at least one of a crack in a thickness direction having a depth equivalent to 10% or more of the thickness of the particle and a width shorter than the depth, and a crack in a direction parallel to the surface having a length equivalent to 10% or more of the thickness of the particle and a width shorter than the length.
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公开(公告)号：US20210305851A1
公开(公告)日：2021-09-30
申请号：US17002811
申请日：2020-08-26
摘要： A pressed powder material of the embodiments is a pressed powder material including: a plurality of flaky magnetic metal particles, each flaky magnetic metal particle having a flat surface and a magnetic metal phase containing at least one first element selected from the group consisting of Fe, Co, and Ni, the flaky magnetic metal particles having an average thickness of from 10 nm to 100 μm and an average value of the ratio of the average length in the flat surface to the thickness of from 5 to 10,000; and an intercalated phase existing between the flaky magnetic metal particles and containing at least one second element selected from the group consisting of oxygen (O), carbon (C), nitrogen (N), and fluorine (F), in which the pressed powder material includes a plane, and in which the pressed powder material includes, in a predetermined cross-section perpendicular to the flat surfaces, a void site at the boundary part between the flat surface of a flaky magnetic metal particle and the intercalated phase in contact with the flat surface, and the ratio of the length of the void site is 20% or less with respect to the length of the flat surface.
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公开(公告)号：US20170271059A1
公开(公告)日：2017-09-21
申请号：US15440049
申请日：2017-02-23
CPC分类号： H01F1/053 , C22C1/02 , C22C1/0433 , C22C19/07 , C22C2202/02 , H01F1/0557 , H01F1/0596 , H02K1/02 , H02K1/06
摘要： A permanent magnet expressed by a composition formula: RpFeqMrCutCo100-p-q-r-t. The magnet comprises: a metal structure including a main phase having a Th2Zn17 crystal phase and a grain boundary phase. The main phase includes a cell phase having the Th2Zn17 crystal phase, a Cu-rich phase having a Cu concentration higher than the cell phase, and a plurality of M-rich platelet phases extending in a direction intersecting with a c-axis of the Th2Zn17 crystal phase in a section including the c-axis and having a M element concentration higher than the cell phase. In the section, the cell phase has a 200 nm diameter or more, and a gap between the M-rich platelet phases is 80 nm or less.
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公开(公告)号：US10937576B2
公开(公告)日：2021-03-02
申请号：US16045205
申请日：2018-07-25
摘要： The flaky magnetic metal particles of the embodiments include a plurality of flaky magnetic metal particles, each of the flaky magnetic metal particles including a first magnetic particle including a flat surface, at least one first element selected from the group consisting of Fe, Co and Ni, an average ratio between the maximum length and the minimum length in the flat surface being between 1 and 5 inclusive, an average thickness of the first magnetic particles being between 10 nm and 100 μm inclusive, an average aspect ratio of the first magnetic particles being between 5 and 10000 inclusive; and a plurality of second magnetic particles disposed on the flat surface, an average number of the second magnetic particles being five or more, an average diameter of the second magnetic particles being between 10 nm and 1 μm inclusive.
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6.发明申请公开(公告)号：US20200340087A1
公开(公告)日：2020-10-29
申请号：US16922013
申请日：2020-07-07
IPC分类号： C22C38/10 , C21D9/52 , C21D8/02 , C21D6/00 , B22F9/04 , B22F3/02 , B22F3/24 , C22C38/02 , H02K15/00 , H01F1/24 , H02K1/02 , H01F41/02
摘要： Provided is a plurality of flaky magnetic metal particles of the embodiments, each flaky magnetic metal particle having a flat surface provided with either or both of a plurality of concavities and a plurality of convexities arranged in a first direction, each concavity or convexity having a width of 0.1 μm or more, a length of 1 μm or more, and an aspect ratio of 2 or higher; and at least one first element selected from the group consisting of iron (Fe), cobalt (Co), and nickel (Ni), the flaky magnetic metal particles having an average thickness of between 10 nm and 100 μm inclusive and an average aspect ratio of between 5 and 10,000 inclusive.
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公开(公告)号：US10071421B2
公开(公告)日：2018-09-11
申请号：US15259371
申请日：2016-09-08
IPC分类号： B22F1/00 , B22F5/10 , B22F9/04 , B22F3/02 , B22F3/24 , C22C38/10 , C22C38/02 , C22C38/00 , H01F1/03 , H02K1/02
CPC分类号： B22F1/0055 , B22F1/0018 , B22F1/0062 , B22F1/02 , B22F3/02 , B22F3/24 , B22F5/106 , B22F9/04 , B22F2001/0033 , B22F2003/248 , B22F2009/043 , B22F2202/05 , B22F2302/45 , B22F2303/01 , B22F2998/10 , B22F2999/00 , C22C1/1084 , C22C38/002 , C22C38/02 , C22C38/10 , H01F1/0306 , H01F1/24 , H02K1/02 , C22C2202/02 , B22F2202/03 , B22F1/0059 , B22F3/1035
摘要： The flaky magnetic metal particles of the embodiments include a plurality of flaky magnetic metal particles, each of the flaky magnetic metal particles including a first magnetic particle including a flat surface, at least one first element selected from the group consisting of Fe, Co and Ni, an average ratio between the maximum length and the minimum length in the flat surface being between 1 and 5 inclusive, an average thickness of the first magnetic particles being between 10 nm and 100 μm inclusive, an average aspect ratio of the first magnetic particles being between 5 and 10000 inclusive; and a plurality of second magnetic particles disposed on the flat surface, an average number of the second magnetic particles being five or more, an average diameter of the second magnetic particles being between 10 nm and 1 μm inclusive.
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8.发明申请公开(公告)号：US20170076845A1
公开(公告)日：2017-03-16
申请号：US15259391
申请日：2016-09-08
摘要： The soft magnetic material of embodiments includes flattened magnetic metal particles including at least one magnetic metal selected from iron (Fe), cobalt (Co) and nickel (Ni), each of the flattened magnetic metal particles having a thickness of from 10 nm to 100 μm, an aspect ratio of from 5 to 10,000, and a lattice strain of from 0.01% to 10%, and being oriented with magnetic anisotropy in one direction within aligned flattened surface; and an interposed phase existing between the flattened magnetic metal particles and including at least one of oxygen (O), carbon (C), nitrogen (N) and fluorine (F).
摘要翻译： 实施方案的软磁性材料包括平坦化的磁性金属颗粒，其包括选自铁（Fe），钴（Co）和镍（Ni）中的至少一种磁性金属，每个平坦的磁性金属颗粒的厚度为10nm至100 μm，长宽比为5〜10,000，晶格应变为0.01〜10％，并且在取向的平坦化表面内沿一个方向取向为磁各向异性; 并且在平坦化的磁性金属粒子之间存在包含氧（O），碳（C），氮（N）和氟（F））中的至少一种的介入相。
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公开(公告)号：US20170018978A1
公开(公告)日：2017-01-19
申请号：US15210759
申请日：2016-07-14
发明人： Yosuke HORIUCHI , Shinya Sakurada , Makoto Matsushita , Norio Takahashi , Toshio Hasebe , Hiroaki Kinouchi , Tadashi Tokumasu
CPC分类号： H02K1/02 , H02K1/17 , H02K1/27 , H02K7/003 , H02K7/1823
摘要： A rotary electrical machine includes a permanent magnet having a composition containing at least one element selected from the group consisting of rare earth elements. A residual magnetization of the permanent magnet is 1.16 T or more. A coercive force Hcj on an M-H curve of the permanent magnet is 1000 kA/m or more. A recoil magnetic permeability on a B-H curve of the permanent magnet is 1.1 or more.
摘要翻译： 旋转电机包括永磁体，其具有包含选自稀土元素中的至少一种元素的组成。 永久磁铁的剩余磁化强度为1.16T以上。 永磁体的M-H曲线上的矫顽力Hcj为1000kA / m以上。 永久磁铁的B-H曲线上的反冲磁导率为1.1以上。
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10.发明授权公开(公告)号：US11692250B2
公开(公告)日：2023-07-04
申请号：US16526637
申请日：2019-07-30
CPC分类号： C22C38/02 , B22F1/068 , B22F3/02 , C22C38/10 , H01F1/14741 , H01F1/24 , B22F1/08 , B22F2207/11 , B22F2207/20 , B22F2304/00 , B22F2304/05
摘要： Flaky magnetic metal particles of embodiments each have a flat surface and a magnetic metal phase containing iron (Fe), cobalt (Co), and silicon (Si). An amount of Co is from 0.001 at % to 80 at % with respect to the total amount of Fe and Co. An amount of Si is from 0.001 at % to 30 at % with respect to the total amount of the magnetic metal phase. The flaky magnetic metal particles have an average thickness of from 10 nm to 100 μm. An average value of the ratio of the average length in the flat surface with respect to a thickness in each of the flaky magnetic metal particles is from 5 to 10,000. The flaky magnetic metal particles have the difference in coercivity on the basis of direction within the flat surface.
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