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11.发明申请公开(公告)号：US20140252264A1
公开(公告)日：2014-09-11
申请号：US13788218
申请日：2013-03-07
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Binil Itty Ipe Kandapallil , Robert Edgar Colborn , Peter John Bonitatibus, JR. , Francis Johnson
IPC: H01F1/01
CPC classification number: H01F1/0054 , B22F1/0018 , B22F9/24
Abstract: A method of synthesizing magnetic nanoparticles comprising soft magnetic phases is provided, wherein the method comprises degassing a first mixture at a temperature in a range from about 80° C. to 130° C. The first mixture comprises a solvent, a compound comprising iron, cobalt, or combinations thereof dissolved in the solvent, and an organic component comprising a fatty acid or an amine. Degassing the first mixture is followed by adding a capping ligand to the first mixture under inert atmosphere to form a second mixture; adding a reducing agent to the second mixture at a temperature in a processing temperature range from about 250° C. to about 350° C. to form a third mixture; and incubating the third mixture at a temperature within the processing temperature range to form nanoparticles comprising a soft magnetic phase.
Abstract translation: 提供了一种合成包含软磁相的磁性纳米颗粒的方法，其中该方法包括在约80℃至130℃的温度范围内对第一混合物进行脱气。第一混合物包含溶剂，包含铁， 钴或其组合，以及包含脂肪酸或胺的有机组分。 在第一混合物中脱气之后，在惰性气氛下向第一混合物中加入封端配体以形成第二混合物; 在约250℃至约350℃的加工温度范围内的温度下向第二混合物中加入还原剂以形成第三混合物; 并在处理温度范围内的温度下培养第三混合物以形成包含软磁相的纳米颗粒。
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公开(公告)号：US10749385B2
公开(公告)日：2020-08-18
申请号：US15598408
申请日：2017-05-18
Applicant: General Electric Company
Inventor： Patel Bhageerath Reddy , Min Zou , Ayman Mohamed Fawzi El-Refaie , Francis Johnson
Abstract: An AC electric machine that includes a dual magnetic phase material ring is disclosed. The AC electric machine includes a stator assembly and a rotor assembly positioned within the stator assembly and configured to rotate relative thereto, the rotor assembly comprising a rotor core including a stack of rotor laminations that collectively form the rotor core, the rotor core including a plurality of rotor poles separated by gaps therebetween. The AC electric machine also includes a dual magnetic phase material ring positioned about the stack of rotor laminations, the dual magnetic phase material ring comprising a first ring portion comprising a magnetic portion and a second ring portion comprising a non-magnetic portion.
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公开(公告)号：US09938628B2
公开(公告)日：2018-04-10
申请号：US14715704
申请日：2015-05-19
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Binil Itty Ipe Kandapallil , Lakshmi Krishnan , Francis Johnson
CPC classification number: C25B3/00 , C25B3/12 , C25C5/02 , C25C7/06 , C25D3/56 , C25D11/34 , C25D15/00 , H01F1/0054
Abstract: The present invention is directed to composite nanoparticles comprising a metal, a rare earth element, and, optionally, a complexing ligand. The invention is also directed to composite nanoparticles having a core-shell structure and to processes for preparation of composite nanoparticles of the invention.
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公开(公告)号：US20170183764A1
公开(公告)日：2017-06-29
申请号：US15460650
申请日：2017-03-16
Applicant: General Electric Company
Inventor： Laura Cerully Dial , Richard DiDomizio , Francis Johnson
CPC classification number: C23C8/04 , C21D1/06 , C21D1/26 , C21D9/00 , C21D2221/00 , C22C38/38 , C23C8/26 , H01F1/147 , H02K15/12 , H02K19/02 , H02K19/103
Abstract: A magnetic component having intermixed first and second regions, and a method of preparing that magnetic component are disclosed. The first region includes a magnetic phase and the second region includes a non-magnetic phase. The method includes mechanically masking pre-selected sections of a surface portion of the component by using a nitrogen stop-off material and heat-treating the component in a nitrogen-rich atmosphere at a temperature greater than about 900° C. Both the first and second regions are substantially free of carbon, or contain only limited amounts of carbon; and the second region includes greater than about 0.1 weight % of nitrogen.
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公开(公告)号：US09634549B2
公开(公告)日：2017-04-25
申请号：US14068937
申请日：2013-10-31
Applicant: General Electric Company
Inventor： Laura Cerully Dial , Richard DiDomizio , Francis Johnson
CPC classification number: C23C8/04 , C21D1/06 , C21D1/26 , C21D9/00 , C21D2221/00 , C22C38/38 , C23C8/26 , H01F1/147 , H02K15/12 , H02K19/02 , H02K19/103
Abstract: A magnetic component having intermixed first and second regions, and a method of preparing that magnetic component are disclosed. The first region includes a magnetic phase and the second region includes a non-magnetic phase. The method includes mechanically masking pre-selected sections of a surface portion of the component by using a nitrogen stop-off material and heat-treating the component in a nitrogen-rich atmosphere at a temperature greater than about 900° C. Both the first and second regions are substantially free of carbon, or contain only limited amounts of carbon; and the second region includes greater than about 0.1 weight % of nitrogen.
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Patent Agency Ranking
公开(公告)号：US09205484B2
公开(公告)日：2015-12-08
申请号：US14091386
申请日：2013-11-27
Applicant: General Electric Company
Inventor： Qi Zhao , Stephen Francis Rutkowski , Francis Johnson , Wanming Zhang , Min Zou
CPC classification number: B22C1/02 , B22C3/00 , B22C9/02 , B22C9/04 , B22C13/085
Abstract: A shell mold is described. The shell mold includes a facecoat, a sealcoat, and a support disposed in between the facecoat and the sealcoat. The support includes a stucco in a concentration greater than about 40 volume percent of the support. The stucco includes a material that has a thermal conductivity greater than about 285 W/m-K.
Abstract translation: 描述了壳模。 壳模包括面涂层，密封涂层和设置在面涂层和密封涂层之间的支撑体。 支持物包括浓度大于载体的约40体积％的灰泥。 灰泥包括导热率大于约285W / m-K的材料。
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公开(公告)号：US20150147217A1
公开(公告)日：2015-05-28
申请号：US14091380
申请日：2013-11-27
Applicant: General Electric Company
Inventor： Francis Johnson , Wanming Zhang , Min Zou , Christina Hongbing Chen
CPC classification number: H01F1/0579 , C22C19/03 , C22C38/001 , C22C38/002 , C22C38/005 , H01F1/0555 , H01F1/0575 , H01F1/059 , H01F1/11
Abstract: An article having a nanocomposite magnetic component and method of forming a nanocomposite magnetic component are disclosed. The article includes a plurality of nanocrystalline flake particles bonded along their prior particle boundaries. The nanocrystalline flake particles have a median grain size less than about 30 nanometers and include a first set of grains comprising predominantly permanent magnet phase and a second set of grains comprising predominantly soft magnet phase.
Abstract translation: 公开了具有纳米复合磁性部件的物品和形成纳米复合磁性部件的方法。 该制品包括沿其先前的颗粒边界结合的多个纳米晶片状颗粒。 纳米晶片颗粒具有小于约30纳米的中值晶粒尺寸，并且包括主要包含永磁体相的第一组晶粒和主要包含软磁体相的第二组晶粒。
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公开(公告)号：US20150115749A1
公开(公告)日：2015-04-30
申请号：US14068937
申请日：2013-10-31
Applicant: General Electric Company
Inventor： Laura Cerully Dial , Richard DiDomizio , Francis Johnson
CPC classification number: C23C8/04 , C21D1/06 , C21D1/26 , C21D9/00 , C21D2221/00 , C22C38/38 , C23C8/26 , H01F1/147 , H02K15/12 , H02K19/02 , H02K19/103
Abstract: A magnetic component having intermixed first and second regions, and a method of preparing that magnetic component are disclosed. The first region includes a magnetic phase and the second region includes a non-magnetic phase. The method includes mechanically masking pre-selected sections of a surface portion of the component by using a nitrogen stop-off material and heat-treating the component in a nitrogen-rich atmosphere at a temperature greater than about 900° C. Both the first and second regions are substantially free of carbon, or contain only limited amounts of carbon; and the second region includes greater than about 0.1 weight % of nitrogen.
Abstract translation: 具有混合的第一和第二区域的磁性部件，以及制备该磁性部件的方法。 第一区域包括磁性相，第二区域包括非磁性相。 该方法包括通过使用氮气截止材料机械地掩蔽部件的表面部分的预选部分，并在高于大约900℃的温度的富氮气氛中热处理该组分。第一和第 第二区域基本上不含碳，或只含有限量的碳; 并且第二区域包括大于约0.1重量％的氮气。
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19.发明授权公开(公告)号：US10673288B2
公开(公告)日：2020-06-02
申请号：US15895743
申请日：2018-02-13
Applicant: General Electric Company
Inventor： Lawrence Bernard Kool , Min Zou , Wanming Zhang , Susan Corah , Christopher Klapper , Francis Johnson , Steve Buresh
IPC: H02K1/02 , H02K1/04 , H02K15/02 , H02K15/12 , H01F1/34 , H01F3/02 , H01F41/02 , C22C38/00 , C22C38/54 , C22C38/06 , B32B15/01 , C22C38/30 , C22C38/58 , C22C38/38 , H01F3/10
Abstract: A method includes forming one or more oxide barrier layers on one or more protected portions of a magnetic, metallic body, and converting one or more unprotected portions of the magnetic, metallic body to a less magnetic material by exposing the magnetic metallic body having the one or more oxide barrier layers formed thereon to nitrogen. One or more protected portions of the magnetic, metallic body that are beneath the one or more oxide barrier layers are not converted to the less magnetic material. The method can be used to form one or more layers of a laminated electric motor.
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公开(公告)号：US20190311852A1
公开(公告)日：2019-10-10
申请号：US15949551
申请日：2018-04-10
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Francis Johnson , Mohamed Osama , Anoop Kumar Jassal , Raghavendra Rao Adharapurapu
Abstract: A method of heat-treating an additively-manufactured ferromagnetic component is presented and a related ferromagnetic component is presented. A saturation flux density of a heat-treated ferromagnetic component is greater than a saturation flux density of an as-formed ferromagnetic component. The heat-treated ferromagnetic component is further characterized by a plurality of grains such that at least 25% of the plurality of grains have a median grain size less than 10 microns and 25% of the plurality of grains have a median grain size greater than 25 microns.
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