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公开(公告)号：US20140262813A1
公开(公告)日：2014-09-18
申请号：US14287475
申请日：2014-05-27
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： John J. Vajo , Wen Li , Ping Liu , Frederick E. Pinkerton
CPC classification number: C25B1/02 , C25D11/04 , H01M8/04216 , H01M8/0656
Abstract: Both the reaction of hydride-forming compositions with hydrogen to form hydrides, and the decomposition of such hydrides to release hydrogen may be promoted electrochemically. These reactions may be conducted reversibly, and if performed in a suitable cell, the cell will serve as a hydrogen storage and release device.
Abstract translation: 氢化物形成组合物与氢形成氢化物的反应以及这种氢化物分解以释放氢，可以电化学地促进。 这些反应可以可逆地进行，并且如果在合适的电池中进行，则电池将用作储氢和释放装置。
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公开(公告)号：US10260131B2
公开(公告)日：2019-04-16
申请号：US15232487
申请日：2016-08-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Zhongyi Liu , Frederick E. Pinkerton , Tengjiao Qi
Abstract: In an example of a method for forming a high-strength, lightweight alloy, starting materials are provided. The starting materials include aluminum, iron, and silicon. The starting materials are ball milled to generate the high-strength, lightweight alloy of a stable AlxFeySiz phase, wherein x ranges from about 3 to about 5, y ranges from about 1.5 to about 2.2, and z is about 1.
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公开(公告)号：US20170330684A1
公开(公告)日：2017-11-16
申请号：US15150760
申请日：2016-05-10
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Michael P. Balogh , Frederick E. Pinkerton , Anil Singh Bika , Ingrid A. Rousseau
Abstract: A method of fabricating a curvilinear magnet includes forming at least one slot in a material billet. The slotted material billet is inserted into a mold having a curvilinear pocket. The mold is closed around the slotted material billet such that the slotted material billet conforms to the curvilinear pocket and forms a curvilinear billet. The curvilinear billet is arranged in a structure. The curvilinear billet arranged in the structure is then magnetized.
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4.发明申请RAPID CONSOLIDATION METHOD FOR PREPARING BULK METASTABLE IRON-RICH MATERIALS 审中-公开用于制备大量易生铁的材料的快速合并方法公开(公告)号：US20170062106A1
公开(公告)日：2017-03-02
申请号：US14834861
申请日：2015-08-25
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chen Zhou , Frederick E. Pinkerton
CPC classification number: H01F1/0593 , H01F1/0557 , H01F41/0266
Abstract: Interstitially modified compounds of rare earth element-containing, iron-rich compounds may be synthesized with a ThMn12 tetragonal crystal structure such that the compounds have useful permanent magnet properties. It is difficult to consolidate particles of the compounds into a bulk shape without altering the composition and magnetic properties of the metastable material. A combination of thermal analysis and crystal structure analysis of each compound may be used to establish heating and consolidation parameters for sintering of the particles into useful magnet shapes.
Abstract translation: 可以用ThMn12四方晶体结构合成含稀土元素的富铁化合物的间隙改性化合物，使得该化合物具有有用的永久磁铁性质。 难以将化合物的颗粒固结成体形而不改变亚稳态材料的组成和磁性。 可以使用每种化合物的热分析和晶体结构分析的组合来建立用于将颗粒烧结成有用磁体形状的加热和固结参数。
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5.发明申请公开(公告)号：US20150171717A1
公开(公告)日：2015-06-18
申请号：US14109097
申请日：2013-12-17
Applicant: GM Global Technology Operations LLC
Inventor： Shekhar G. Wakade , Frederick E. Pinkerton
CPC classification number: H02K15/03 , B22F3/1007 , B22F3/225 , B22F2999/00 , H01F1/0577 , H01F41/0273 , Y10T29/49012 , B22F2202/05
Abstract: A method of making a permanent magnet and a permanent magnet. The method includes using metal injection molding to mix a magnetic material with a binder into a common feedstock and injection mold the feedstock into a predetermined magnet shape. The injection molding of the feedstock takes place in conjunction with the application of a magnetic field such that at least some of the magnetic constituents in the feedstock are aligned with the applied field. After the alignment of the magnetic constituents, the shaped part may be sintered. In one form, the magnetic constituents may be made from a neodymium-iron-boron permanent magnet precursor material, as well as one or more rare earth ingredients.
Abstract translation: 一种制造永磁体和永磁体的方法。 该方法包括使用金属注射成型将磁性材料与粘合剂混合到共同的原料中并将原料注射成预定的磁体形状。 原料的注射成型与施加磁场一起进行，使得原料中的至少一些磁性组分与施加的磁场对准。 在磁性成分对准之后，成形部件可以烧结。 在一种形式中，磁性成分可以由钕 - 铁 - 硼永磁体前体材料以及一种或多种稀土成分制成。
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Patent Agency Ranking
公开(公告)号：US11031161B2
公开(公告)日：2021-06-08
申请号：US15977545
申请日：2018-05-11
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Anil K. Sachdev , Frederick E. Pinkerton , Raja K. Mishra , Tyson W. Brown
IPC: H01F1/03 , B29C64/268 , B33Y80/00 , C01B21/06
Abstract: A three-dimensional object made of a bulk nitride, carbide, or boride-containing material may be manufactured using a powder bed fusion additive manufacturing technique. A layer of powder feed material may be distributed over a solid substrate and scanned with a high-energy laser beam to locally melt selective regions of the layer and form a pool of molten feed material. The pool of molten feed material may be exposed to gaseous nitrogen, carbon, or boron to respectively dissolve nitride, carbide, or boride ions into the pool of molten feed material to produce a molten nitrogen, carbon, or boron-containing solution. The molten nitrogen, carbon, or boron-containing solution may cool and solidify into a solid layer of fused nitride, carbide, or boride-containing material. In one form, the three-dimensional object may comprise a permanent magnet made up of a plurality of solid layers of fused iron nitride material having a magnetic Fe16N2 phase.
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公开(公告)号：US20170125163A1
公开(公告)日：2017-05-04
申请号：US15290660
申请日：2016-10-11
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Frederick E. Pinkerton , Anil K. Sachdev
CPC classification number: H01F41/0266 , B21C23/002 , B21C23/06 , B21C23/12 , B21C23/183 , B21C35/023 , B21D22/022 , B21D22/025 , B21D35/005
Abstract: A method for fabricating a non-planar magnet includes extruding a precursor material including neodymium iron boron crystalline grains into an original anisotropic neodymium iron boron permanent magnet having an original shape, wherein the original anisotropic neodymium iron boron permanent magnet has at least about 90 percent neodymium iron boron magnetic material by volume. The original anisotropic neodymium iron boron permanent magnet is heated to a deformation temperature. The original anisotropic neodymium iron boron permanent magnet is deformed into a reshaped anisotropic neodymium iron boron permanent magnet having a second shape substantially different from the original shape using heated tooling to apply a deformation load to the original anisotropic neodymium iron boron permanent magnet. The original anisotropic neodymium iron boron permanent magnet and the reshaped anisotropic neodymium iron boron permanent magnet each have respective magnetic moments substantially aligned with a respective local surface normal corresponding to the respective magnetic moment.
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公开(公告)号：US10930417B2
公开(公告)日：2021-02-23
申请号：US16039455
申请日：2018-07-19
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Chen Zhou , Frederick E. Pinkerton
Abstract: Interstitially modified compounds of rare earth element-containing, iron-rich compounds may be synthesized with a ThMn12 tetragonal crystal structure such that the compounds have useful permanent magnet properties. It is difficult to consolidate particles of the compounds into a bulk shape without altering the composition and magnetic properties of the metastable material. A combination of thermal analysis and crystal structure analysis of each compound may be used to establish heating and consolidation parameters for sintering of the particles into useful magnet shapes.
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公开(公告)号：US10141795B2
公开(公告)日：2018-11-27
申请号：US15064211
申请日：2016-03-08
Applicant: GM Global Technology Operations LLC
Inventor： Margarita P. Thompson , Frederick E. Pinkerton , Michael P. Balogh , Gayatri Vyas Dadheech , Xiaoqing Zeng
Abstract: An electric motor is provided for use in an electromechanical transmission that utilizes automatic transmission fluid. The electric motor includes a stator and a rotor. The rotor includes a plurality of permanent magnets can include magnetic particles coated with hydrogen impermeable material. According to an alternative embodiment, the entire permanent magnet or the rotor itself can be coated with hydrogen impermeable material. According to a further alternative embodiment, the permanent magnet particles can be secured by a binder that includes a hydrogen storage compound that prevents hydrogen from affecting magnetic properties of the permanent magnet.
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公开(公告)号：US20180237890A1
公开(公告)日：2018-08-23
申请号：US15436198
申请日：2017-02-17
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Zhongyi Liu , Frederick E. Pinkerton
Abstract: According to aspects of the present disclosure, a ternary alloy includes a dual-phase microstructure including a first phase and a second phase. The first phase defines a hexagonal close-packed structure with a stoichiometric ratio of Al4Fe1.7Si. The second phase defines a face-centered cubic structure with a stoichiometric ratio of Al3Fe2Si. The dual-phase microstructure is stable above about 800° C., and the dual-phase microstructure has a first-phase abundance greater than about 50 parts by weight and a second-phase abundance less than about 50 parts by weight based on 100 parts by weight of the ternary alloy.
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