公开(公告)号：US06562495B2

公开(公告)日：2003-05-13

申请号：US10150140

申请日：2002-05-17

Applicant: Tapesh Yadav ,  Bijan Miremadi

Inventor： Tapesh Yadav ,  Bijan Miremadi

IPC: B32B516

CPC classification number: H01L23/5328 ,  A61L27/06 ,  B01J12/005 ,  B01J12/02 ,  B01J19/0046 ,  B01J19/24 ,  B01J23/002 ,  B01J23/08 ,  B01J23/14 ,  B01J35/0013 ,  B01J37/18 ,  B01J2219/00094 ,  B01J2219/00135 ,  B01J2219/00155 ,  B01J2219/00177 ,  B01J2219/0018 ,  B01J2219/00317 ,  B01J2219/00385 ,  B01J2219/0043 ,  B01J2219/00653 ,  B01J2219/00707 ,  B01J2219/00745 ,  B01J2219/00747 ,  B01J2219/0075 ,  B01J2219/00754 ,  B01J2219/00756 ,  B01J2219/0894 ,  B01J2523/00 ,  B05B1/12 ,  B22F1/0003 ,  B22F9/04 ,  B22F9/12 ,  B22F2009/041 ,  B22F2998/00 ,  B22F2999/00 ,  B29C70/58 ,  B82B1/00 ,  B82Y5/00 ,  B82Y25/00 ,  B82Y30/00 ,  C01B3/001 ,  C01B13/145 ,  C01B19/007 ,  C01B21/062 ,  C01B32/956 ,  C01B35/04 ,  C01F5/06 ,  C01F11/06 ,  C01F17/0043 ,  C01G23/006 ,  C01G25/00 ,  C01G25/02 ,  C01G41/02 ,  C01G53/00 ,  C01G53/006 ,  C01P2002/01 ,  C01P2002/02 ,  C01P2002/34 ,  C01P2002/54 ,  C01P2002/60 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/38 ,  C01P2004/51 ,  C01P2004/54 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/10 ,  C01P2006/12 ,  C01P2006/40 ,  C01P2006/60 ,  C04B35/00 ,  C04B35/01 ,  C04B35/265 ,  C04B35/2666 ,  C04B35/453 ,  C04B35/457 ,  C04B35/56 ,  C04B35/5611 ,  C04B35/581 ,  C04B35/62222 ,  C04B41/009 ,  C04B41/4549 ,  C04B41/52 ,  C04B41/87 ,  C04B41/89 ,  C04B41/90 ,  C04B2111/00844 ,  C04B2235/3241 ,  C04B2235/3262 ,  C04B2235/3275 ,  C04B2235/3279 ,  C04B2235/3284 ,  C04B2235/3298 ,  C04B2235/79 ,  C04B2235/80 ,  C08K3/01 ,  C08K3/08 ,  C08K2201/011 ,  C08K2201/016 ,  G01N27/127 ,  H01C7/112 ,  H01C17/0652 ,  H01F1/0036 ,  H01F1/0045 ,  H01F1/36 ,  H01F41/0246 ,  H01G4/12 ,  H01G4/33 ,  H01L23/49883 ,  H01L2924/0002 ,  H01L2924/3011 ,  H01M4/02 ,  H01M4/04 ,  H01M4/242 ,  H01M4/581 ,  H01M4/5815 ,  H01M4/582 ,  H01M4/8875 ,  H01M4/8885 ,  H01M4/90 ,  H01M4/9066 ,  H01M8/1213 ,  H01M8/1246 ,  H01M8/1253 ,  H01M10/0562 ,  H01M10/0566 ,  Y02E60/324 ,  Y02E60/525 ,  Y02P70/56 ,  Y10S428/90 ,  Y10S977/762 ,  Y10S977/783 ,  Y10S977/81 ,  Y10S977/811 ,  Y10S977/948 ,  Y10T29/4902 ,  Y10T428/12056 ,  Y10T428/1216 ,  Y10T428/12181 ,  Y10T428/25 ,  Y10T428/254 ,  Y10T428/256 ,  Y10T428/257 ,  Y10T428/259 ,  Y10T428/2982 ,  Y10T428/2991 ,  Y10T428/2998 ,  B01J2523/33 ,  B01J2523/43 ,  B22F1/0018 ,  B22F2202/13 ,  B01J2523/31 ,  B01J2523/54 ,  B01J2523/67 ,  B01J2523/72 ,  B01J2523/845 ,  B01J2523/847 ,  B01J2523/22 ,  B01J2523/3706 ,  B01J2523/48 ,  B01J2523/18 ,  B01J2523/27 ,  B01J2523/824 ,  B01J2523/842 ,  B01J2523/17 ,  B01J2523/47 ,  B01J2523/56 ,  B01J2523/57 ,  C04B41/4539 ,  C04B41/5059 ,  C04B41/5116 ,  C04B41/5122 ,  C04B41/5027 ,  C04B41/5049 ,  C04B41/524 ,  C04B35/10 ,  B22F2201/11 ,  B01J2523/305 ,  B01J2523/69 ,  H01L2924/00

Abstract: Nanostructured non-stoichiometric materials are disclosed. Novel catalysts and their applications are discussed. More specifically, the specifications teach the use of nanotechnology and nanostructured materials for developing novel catalysts for petrochemical, polymers, plastics, specialty chemicals, environmental and pharmaceutical applications.

公开(公告)号：US20020164482A1

公开(公告)日：2002-11-07

申请号：US10147829

申请日：2002-05-17

Inventor： Tapesh Yadav ,  Ming Au ,  Bijan Miremadi ,  John Freim ,  Yuval Avniel ,  Roger Dirstine ,  John Alexander ,  Evan Franke

IPC: B32B005/16

CPC classification number: H01L23/5328 ,  A61L27/06 ,  B01J12/005 ,  B01J12/02 ,  B01J19/0046 ,  B01J19/24 ,  B01J23/002 ,  B01J23/08 ,  B01J23/14 ,  B01J35/0013 ,  B01J37/18 ,  B01J2219/00094 ,  B01J2219/00135 ,  B01J2219/00155 ,  B01J2219/00177 ,  B01J2219/0018 ,  B01J2219/00317 ,  B01J2219/00385 ,  B01J2219/0043 ,  B01J2219/00653 ,  B01J2219/00707 ,  B01J2219/00745 ,  B01J2219/00747 ,  B01J2219/0075 ,  B01J2219/00754 ,  B01J2219/00756 ,  B01J2219/0894 ,  B01J2523/00 ,  B05B1/12 ,  B22F1/0003 ,  B22F9/04 ,  B22F9/12 ,  B22F2009/041 ,  B22F2998/00 ,  B22F2999/00 ,  B29C70/58 ,  B82B1/00 ,  B82Y5/00 ,  B82Y25/00 ,  B82Y30/00 ,  C01B3/001 ,  C01B13/145 ,  C01B19/007 ,  C01B21/062 ,  C01B32/956 ,  C01B35/04 ,  C01F5/06 ,  C01F11/06 ,  C01F17/0043 ,  C01G23/006 ,  C01G25/00 ,  C01G25/02 ,  C01G41/02 ,  C01G53/00 ,  C01G53/006 ,  C01P2002/01 ,  C01P2002/02 ,  C01P2002/34 ,  C01P2002/54 ,  C01P2002/60 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/38 ,  C01P2004/51 ,  C01P2004/54 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/10 ,  C01P2006/12 ,  C01P2006/40 ,  C01P2006/60 ,  C04B35/00 ,  C04B35/01 ,  C04B35/265 ,  C04B35/2666 ,  C04B35/453 ,  C04B35/457 ,  C04B35/56 ,  C04B35/5611 ,  C04B35/581 ,  C04B35/62222 ,  C04B41/009 ,  C04B41/4549 ,  C04B41/52 ,  C04B41/87 ,  C04B41/89 ,  C04B41/90 ,  C04B2111/00844 ,  C04B2235/3241 ,  C04B2235/3262 ,  C04B2235/3275 ,  C04B2235/3279 ,  C04B2235/3284 ,  C04B2235/3298 ,  C04B2235/79 ,  C04B2235/80 ,  C08K3/01 ,  C08K3/08 ,  C08K2201/011 ,  C08K2201/016 ,  G01N27/127 ,  H01C7/112 ,  H01C17/0652 ,  H01F1/0036 ,  H01F1/0045 ,  H01F1/36 ,  H01F41/0246 ,  H01G4/12 ,  H01G4/33 ,  H01L23/49883 ,  H01L2924/0002 ,  H01L2924/3011 ,  H01M4/02 ,  H01M4/04 ,  H01M4/242 ,  H01M4/581 ,  H01M4/5815 ,  H01M4/582 ,  H01M4/8875 ,  H01M4/8885 ,  H01M4/90 ,  H01M4/9066 ,  H01M8/1213 ,  H01M8/1246 ,  H01M8/1253 ,  H01M10/0562 ,  H01M10/0566 ,  Y02E60/324 ,  Y02E60/525 ,  Y02P70/56 ,  Y10S428/90 ,  Y10S977/762 ,  Y10S977/783 ,  Y10S977/81 ,  Y10S977/811 ,  Y10S977/948 ,  Y10T29/4902 ,  Y10T428/12056 ,  Y10T428/1216 ,  Y10T428/12181 ,  Y10T428/25 ,  Y10T428/254 ,  Y10T428/256 ,  Y10T428/257 ,  Y10T428/259 ,  Y10T428/2982 ,  Y10T428/2991 ,  Y10T428/2998 ,  B01J2523/33 ,  B01J2523/43 ,  B22F1/0018 ,  B22F2202/13 ,  B01J2523/31 ,  B01J2523/54 ,  B01J2523/67 ,  B01J2523/72 ,  B01J2523/845 ,  B01J2523/847 ,  B01J2523/22 ,  B01J2523/3706 ,  B01J2523/48 ,  B01J2523/18 ,  B01J2523/27 ,  B01J2523/824 ,  B01J2523/842 ,  B01J2523/17 ,  B01J2523/47 ,  B01J2523/56 ,  B01J2523/57 ,  C04B41/4539 ,  C04B41/5059 ,  C04B41/5116 ,  C04B41/5122 ,  C04B41/5027 ,  C04B41/5049 ,  C04B41/524 ,  C04B35/10 ,  B22F2201/11 ,  B01J2523/305 ,  B01J2523/69 ,  H01L2924/00

Abstract: Nanostructured non-stoichiometric materials are disclosed. Novel biomedical materials and their applications are discussed. More specifically, the specifications teach the use of nanotechnology and nanostructured materials for developing novel biomedical products.

Abstract translation: 公开了纳米结构非化学计量的材料。 讨论了新型生物医学材料及其应用。 更具体地说，该规范教导了纳米技术和纳米结构材料用于开发新型生物医学产品的应用。

公开(公告)号：US20020051883A1

公开(公告)日：2002-05-02

申请号：US09996471

申请日：2001-11-27

Inventor： Tapesh Yadav ,  Ming Au ,  Bijan Miremadi ,  John Freim ,  Yuval Avniel ,  Roger Dirstine ,  John Alexander ,  Evan Franke

IPC: B32B005/16

CPC classification number: H01L23/5328 ,  A61L27/06 ,  B01J12/005 ,  B01J12/02 ,  B01J19/0046 ,  B01J19/24 ,  B01J23/002 ,  B01J23/08 ,  B01J23/14 ,  B01J35/0013 ,  B01J37/18 ,  B01J2219/00094 ,  B01J2219/00135 ,  B01J2219/00155 ,  B01J2219/00177 ,  B01J2219/0018 ,  B01J2219/00317 ,  B01J2219/00385 ,  B01J2219/0043 ,  B01J2219/00653 ,  B01J2219/00707 ,  B01J2219/00745 ,  B01J2219/00747 ,  B01J2219/0075 ,  B01J2219/00754 ,  B01J2219/00756 ,  B01J2219/0894 ,  B01J2523/00 ,  B05B1/12 ,  B22F1/0003 ,  B22F9/04 ,  B22F9/12 ,  B22F2009/041 ,  B22F2998/00 ,  B22F2999/00 ,  B29C70/58 ,  B82B1/00 ,  B82Y5/00 ,  B82Y25/00 ,  B82Y30/00 ,  C01B3/001 ,  C01B13/145 ,  C01B19/007 ,  C01B21/062 ,  C01B32/956 ,  C01B35/04 ,  C01F5/06 ,  C01F11/06 ,  C01F17/0043 ,  C01G23/006 ,  C01G25/00 ,  C01G25/02 ,  C01G41/02 ,  C01G53/00 ,  C01G53/006 ,  C01P2002/01 ,  C01P2002/02 ,  C01P2002/34 ,  C01P2002/54 ,  C01P2002/60 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/38 ,  C01P2004/51 ,  C01P2004/54 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/10 ,  C01P2006/12 ,  C01P2006/40 ,  C01P2006/60 ,  C04B35/00 ,  C04B35/01 ,  C04B35/265 ,  C04B35/2666 ,  C04B35/453 ,  C04B35/457 ,  C04B35/56 ,  C04B35/5611 ,  C04B35/581 ,  C04B35/62222 ,  C04B41/009 ,  C04B41/4549 ,  C04B41/52 ,  C04B41/87 ,  C04B41/89 ,  C04B41/90 ,  C04B2111/00844 ,  C04B2235/3241 ,  C04B2235/3262 ,  C04B2235/3275 ,  C04B2235/3279 ,  C04B2235/3284 ,  C04B2235/3298 ,  C04B2235/79 ,  C04B2235/80 ,  C08K3/01 ,  C08K3/08 ,  C08K2201/011 ,  C08K2201/016 ,  G01N27/127 ,  H01C7/112 ,  H01C17/0652 ,  H01F1/0036 ,  H01F1/0045 ,  H01F1/36 ,  H01F41/0246 ,  H01G4/12 ,  H01G4/33 ,  H01L23/49883 ,  H01L2924/0002 ,  H01L2924/3011 ,  H01M4/02 ,  H01M4/04 ,  H01M4/242 ,  H01M4/581 ,  H01M4/5815 ,  H01M4/582 ,  H01M4/8875 ,  H01M4/8885 ,  H01M4/90 ,  H01M4/9066 ,  H01M8/1213 ,  H01M8/1246 ,  H01M8/1253 ,  H01M10/0562 ,  H01M10/0566 ,  Y02E60/324 ,  Y02E60/525 ,  Y02P70/56 ,  Y10S428/90 ,  Y10S977/762 ,  Y10S977/783 ,  Y10S977/81 ,  Y10S977/811 ,  Y10S977/948 ,  Y10T29/4902 ,  Y10T428/12056 ,  Y10T428/1216 ,  Y10T428/12181 ,  Y10T428/25 ,  Y10T428/254 ,  Y10T428/256 ,  Y10T428/257 ,  Y10T428/259 ,  Y10T428/2982 ,  Y10T428/2991 ,  Y10T428/2998 ,  B01J2523/33 ,  B01J2523/43 ,  B22F1/0018 ,  B22F2202/13 ,  B01J2523/31 ,  B01J2523/54 ,  B01J2523/67 ,  B01J2523/72 ,  B01J2523/845 ,  B01J2523/847 ,  B01J2523/22 ,  B01J2523/3706 ,  B01J2523/48 ,  B01J2523/18 ,  B01J2523/27 ,  B01J2523/824 ,  B01J2523/842 ,  B01J2523/17 ,  B01J2523/47 ,  B01J2523/56 ,  B01J2523/57 ,  C04B41/4539 ,  C04B41/5059 ,  C04B41/5116 ,  C04B41/5122 ,  C04B41/5027 ,  C04B41/5049 ,  C04B41/524 ,  C04B35/10 ,  B22F2201/11 ,  B01J2523/305 ,  B01J2523/69 ,  H01L2924/00

Abstract: Nanostructured non-stoichiometric materials and methods of reducing manufacturing and raw material costs through the use of nanostructured materials are provided. Specifically, use of non-stoichiometric materials of oxide, nitride, carbide, chalcogenides, borides, alloys and other compositions are taught.

Abstract translation: 提供纳米结构的非化学计量材料和通过使用纳米结构材料降低制造成本和原材料成本的方法。 具体地讲，教导了使用非化学计量的氧化物，氮化物，碳化物，硫族化物，硼化物，合金和其它组合物的材料。

公开(公告)号：US20240318285A1

公开(公告)日：2024-09-26

申请号：US18580620

申请日：2022-03-29

Applicant: Sumitomo Electric Hardmetal Corp.

Inventor： Tomoyuki ISHIDA ,  Yuki TANAKA ,  Kazuhiro HIROSE

IPC: C22C29/08 ,  B22F3/16 ,  B22F3/24 ,  B22F9/02 ,  B22F9/04 ,  C22C1/051 ,  C22C29/06

CPC classification number: C22C29/08 ,  B22F3/16 ,  B22F3/24 ,  B22F9/026 ,  B22F9/04 ,  C22C1/051 ,  C22C29/067 ,  B22F2003/248 ,  B22F2009/043 ,  B22F2201/11 ,  B22F2201/20 ,  B22F2301/15 ,  B22F2302/10 ,  B22F2998/10 ,  B22F2999/00

Abstract: A cemented carbide is a cemented carbide, composed of: hard phases comprising tungsten carbide as a main ingredient and binder phases comprising cobalt as a main ingredient, wherein the hard phases have a ratio D10/D90 of D10 being an area-based 10% cumulative particle size to D90 being an area-based 90% cumulative particle size of 0.30 or more, the binder phases have a ratio D10/D90 of D10 being an area-based 10% cumulative particle size to D90 being an area-based 90% cumulative particle size of 0.23 or more, wherein the binder phases have an average particle size of 0.25 μm or more and 0.50 μm or less, and wherein the hard phases have an average particle size of 0.30 μm or more and 0.60 μm or less.

公开(公告)号：US20240307956A1

公开(公告)日：2024-09-19

申请号：US18589681

申请日：2024-02-28

Applicant: Keisuke SHIBA ,  Daichi YAMAGUCHI ,  Hiroyuki MIYATA ,  Naoki OYA ,  Shimpei MIYATA

Inventor： Keisuke SHIBA ,  Daichi YAMAGUCHI ,  Hiroyuki MIYATA ,  Naoki OYA ,  Shimpei MIYATA

IPC: B22F3/10 ,  B22F3/16 ,  B22F10/14 ,  B33Y10/00 ,  B33Y40/20 ,  C22C21/02

CPC classification number: B22F3/1007 ,  B22F3/1021 ,  B22F3/16 ,  B22F10/14 ,  B33Y10/00 ,  B33Y40/20 ,  C22C21/02 ,  B22F2003/1014 ,  B22F2201/02 ,  B22F2201/11 ,  B22F2301/052 ,  B22F2998/10 ,  B22F2999/00

Abstract: A sintered body production method includes sintering a sintering precursor containing a metal in the presence of a gas adsorbent, the gas adsorbent being activated at a temperature at which the metal is not oxidized.

公开(公告)号：US20240228802A9

公开(公告)日：2024-07-11

申请号：US18457642

申请日：2023-08-29

Applicant: JIANGNAN UNIVERSITY

Inventor： Ren LIU ,  Guo Wei ,  Junzhao Yuan ,  Xinxin Sang

IPC: C09D11/037 ,  B22F10/10 ,  B22F10/64 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y70/10 ,  C09D11/101 ,  C09D11/102 ,  C09D11/107

CPC classification number: C09D11/037 ,  B22F10/10 ,  B22F10/64 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y70/10 ,  C09D11/101 ,  C09D11/102 ,  C09D11/107 ,  B22F2201/11 ,  B22F2201/12 ,  B22F2301/10

Abstract: A method is described for preparing metal ink for additive manufacturing based on photo-thermal synergistic curing, relating to functional ink technology. The ink includes 50%-95% metal powder, 1%-35% photosensitive resin, 1%-35% photosensitive monomer, 0.1%-7% photoinitiator, 0.1%-5% thermal initiator, 0.1%-5% up-conversion material, and 0%-2% auxiliary agent. The method includes adding metal ink to the ink tank of a direct ink writing 3D printer, extruding the metal ink from the nozzle under computer control to the printing specific shapes on the platform, and curing under real-time illumination of a specific light source to obtain the green body. The method includes performing high-temperature debinding treatment on the obtained green body in a specific atmosphere. The treated green body is subjected to a high-temperature and high-pressure sintering treatment in a specific atmosphere and then cooled to room temperature.

公开(公告)号：US20240198422A1

公开(公告)日：2024-06-20

申请号：US18288855

申请日：2022-08-24

Applicant: NINGXIA ORIENT TANTALUM INDUSTRY CO., LTD.

Inventor： Yuewei Cheng ,  Jinfeng Zheng ,  Hongyuan Liang ,  Shun Guo ,  Haiyan Ma ,  Jingyi Zuo ,  Li Zhang ,  Hongjie Qin ,  Tong Liu ,  Ying Wang

IPC: B22F9/20 ,  B22F1/142 ,  B22F1/145

CPC classification number: B22F9/20 ,  B22F1/142 ,  B22F1/145 ,  B22F2201/11 ,  B22F2201/20 ,  B22F2301/20 ,  B22F2998/10 ,  B22F2999/00

Abstract: A method produces tantalum powder by reducing tantalum oxide with an alkaline earth metal. The method includes (1) mixing tantalum oxide with an excessive alkaline earth metal reducing agent, simultaneously mixing at least one alkali metal and/or alkaline earth metal halide accounting for 10-200% of the weight of the tantalum oxide, heating the mixture to a temperature of 700-1200° C. in a furnace filled with inert gas, and soaking so that the tantalum oxide and reducing agent are subjected to a reduction reaction; (2) at the end of soaking, lowering the temperature to 600-800° C., vacuumizing the interior of the furnace to 10 Pa or less, and soaking under the negative pressure so that the excessive magnesium and tantalum powder mixture are separated; (3) thereafter, raising the temperature of the furnace to 750-1200° C. in the presence of inert gas, and soaking so that the tantalum powder is further sintered in the molten salt; (4) then cooling to room temperature and passivating to obtain a mixed material containing halide and tantalum powder; and (5) separating the tantalum powder from the mixture.

公开(公告)号：US20240132733A1

公开(公告)日：2024-04-25

申请号：US18457642

申请日：2023-08-28

Applicant: JIANGNAN UNIVERSITY

Inventor： Ren LIU ,  Guo Wei ,  Junzhao Yuan ,  Xinxin Sang

IPC: C09D11/037 ,  B22F10/10 ,  B22F10/64 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y70/10 ,  C09D11/101 ,  C09D11/102 ,  C09D11/107

CPC classification number: C09D11/037 ,  B22F10/10 ,  B22F10/64 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y70/10 ,  C09D11/101 ,  C09D11/102 ,  C09D11/107 ,  B22F2201/11 ,  B22F2201/12 ,  B22F2301/10

Abstract: A method is described for preparing metal ink for additive manufacturing based on photo-thermal synergistic curing, relating to functional ink technology. The ink includes 50%-95% metal powder, 1%-35% photosensitive resin, 1%-35% photosensitive monomer, 0.1%-7% photoinitiator, 0.1%-5% thermal initiator, 0.1%-5% up-conversion material, and 0%-2% auxiliary agent. The method includes adding metal ink to the ink tank of a direct ink writing 3D printer, extruding the metal ink from the nozzle under computer control to the printing specific shapes on the platform, and curing under real-time illumination of a specific light source to obtain the green body. The method includes performing high-temperature debinding treatment on the obtained green body in a specific atmosphere. The treated green body is subjected to a high-temperature and high-pressure sintering treatment in a specific atmosphere and then cooled to room temperature.

公开(公告)号：US11948730B2

公开(公告)日：2024-04-02

申请号：US17082372

申请日：2020-10-28

Applicant: SEIKO EPSON CORPORATION

Inventor： Yasutaka Matsumoto

IPC: B22F1/02 ,  B22F1/102 ,  B22F1/16 ,  H01F1/24 ,  H01F3/08 ,  H01F27/255 ,  H01F41/02

CPC classification number: H01F3/08 ,  B22F1/102 ,  B22F1/16 ,  H01F1/24 ,  B22F2301/15 ,  B22F2301/35 ,  H01F27/255 ,  H01F41/0246 ,  B22F2999/00 ,  B22F1/102 ,  B22F2201/10 ,  B22F2201/03 ,  B22F2201/05 ,  B22F2201/02 ,  B22F2201/11 ,  B22F2201/12 ,  B22F2202/13

Abstract: An insulator-coated magnetic alloy powder particle includes a magnetic alloy powder particle and an insulator that coats a surface of the magnetic alloy powder particle and that has a plurality of protrusions at a surface thereof, wherein the insulator includes a first insulator in a particulate form enclosed in the protrusion, and a second insulator in a film form that coats at least a part of a surface of the first insulator.

公开(公告)号：US20240038420A1

公开(公告)日：2024-02-01

申请号：US18266168

申请日：2021-11-10

Applicant: TDK CORPORATION

Inventor： Atsushi KODA ,  Takahiro SUWA ,  Hikaru KUDO

IPC: H01F1/057 ,  C22C38/16 ,  C22C38/14 ,  C22C38/10 ,  C22C38/06 ,  C22C38/00 ,  B22F9/02 ,  B22F9/04 ,  B22F3/24 ,  B22F3/16

CPC classification number: H01F1/0577 ,  C22C38/16 ,  C22C38/14 ,  C22C38/10 ,  C22C38/06 ,  C22C38/005 ,  C22C38/002 ,  B22F9/023 ,  B22F9/04 ,  B22F3/24 ,  B22F3/16 ,  B22F2999/00 ,  B22F2998/10 ,  B22F2301/355 ,  B22F2201/11 ,  B22F2201/02 ,  B22F2009/044 ,  B22F2202/05 ,  B22F2201/20 ,  B22F2003/248 ,  C22C2202/02

Abstract: An R-T-B permanent magnet that contains: main-phase grains composed of an R2T14B compound (where R is a rare earth element, T is a transition metal element, and B is boron); and grain boundaries. R includes Ce. The R-T-B permanent magnet has a Ce content of 15-35 mass % with respect to the total R content. The grain boundaries include an R-rich phase and an R-T phase. In a cross section of the R-T-B permanent magnet, the surface area ratio S(R-T) of the R-T phases with respect to the grain boundaries is 0.60-0.85.