公开(公告)号：US20240363271A1

公开(公告)日：2024-10-31

申请号：US18645505

申请日：2024-04-25

Applicant: TDK Corporation

Inventor： Hiroki KAWAMURA ,  Hikaru KUDO ,  Motohisa NOMI

IPC: H01F1/057 ,  B22F3/16 ,  B22F3/24 ,  B22F9/02 ,  B22F9/04 ,  C22C33/02 ,  C22C38/00 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  C22C38/16

CPC classification number: H01F1/0577 ,  B22F3/16 ,  B22F3/24 ,  B22F9/023 ,  B22F9/04 ,  C22C33/0207 ,  C22C33/0278 ,  C22C38/002 ,  C22C38/005 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  C22C38/16 ,  B22F2003/248 ,  B22F2009/044 ,  B22F2201/11 ,  B22F2201/20 ,  B22F2202/05 ,  B22F2301/355 ,  B22F2304/10 ,  B22F2998/10 ,  B22F2999/00 ,  C22C2202/02

Abstract: An R-T-B based permanent magnet includes C and Zr. The R-T-B based permanent magnet includes a main phase grain and a grain boundary. The R-T-B based permanent magnet has Zr concentration distribution of the main phase grain within a specific range, and a S(C)/(S(B)+S(C)) of 98.0% or more, where S(B) denotes a total area of ZrB2 in the grain boundary and S(C) denotes a total area of ZrC in the grain boundary, in a section of the R-T-B based permanent magnet. The R-T-B based permanent magnet has a Zr content of 0.60 mass % or more and 1.60 mass % or less, a B content of above 0 mass % and 0.85 mass % or less, and a C content of above 0 mass % and 0.260 mass % or less, out of 100 mass % of the R-T-B based permanent magnet.

公开(公告)号：US20240321491A1

公开(公告)日：2024-09-26

申请号：US18612333

申请日：2024-03-21

Applicant: TDK Corporation

Inventor： Takuma HAYAKAWA

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

CPC classification number: H01F1/0577 ,  B22F3/16 ,  B22F3/24 ,  B22F9/023 ,  B22F9/04 ,  C22C38/002 ,  C22C38/005 ,  C22C38/02 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  C22C38/16 ,  B22F2003/242 ,  B22F2003/248 ,  B22F2009/044 ,  B22F2201/02 ,  B22F2201/11 ,  B22F2201/20 ,  B22F2202/05 ,  B22F2301/355 ,  B22F2304/10 ,  B22F2998/10 ,  B22F2999/00 ,  C22C2202/02

Abstract: An R-T-B based permanent magnet includes at least a rare earth element, Fe, Co, Si, Zr, Ga, and B. The rare earth element includes a heavy rare earth element. The R-T-B based permanent magnet has a rare earth element content of 28.50 mass % to 31.50 mass %, a heavy rare earth element content of 0.30 mass % or less excluding 0 mass %, a Co content of 0.20 mass % to 1.00 mass %, a Si content of 0.35 mass % to 1.20 mass %, a Zr content of 0.21 mass % to 0.85 mass %, a Ga content of 0.04 mass % to 0.40 mass %, a B content of 0.90 mass % to 1.02 mass %, and a C content of 0 mass % to 0.11 mass %.

公开(公告)号：US12084752B2

公开(公告)日：2024-09-10

申请号：US17977622

申请日：2022-10-31

Applicant: QUESTEK INNOVATIONS LLC

Inventor： Abhinav Saboo ,  Ricardo Komai ,  Dana Frankel ,  Marie Thomas ,  Greg Olson

IPC: C22C38/50 ,  B33Y70/00 ,  C22C38/00 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  B33Y10/00

CPC classification number: C22C38/50 ,  B33Y70/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  B22F2201/11 ,  B22F2301/35 ,  B33Y10/00

Abstract: Exemplary alloys may comprise, by weight percentage, 13.25% to 14.75% chromium; 4.5% to 5.5% nickel; 0.11% to 0.17% carbon; 0.01% to 0.31% titanium; and the balance of weight percent comprising iron and incidental elements and impurities. Exemplary methods may include conducting additive manufacturing with an atomized alloy powder to generate a manufactured article, where the atomized alloy powder may comprise, by weight percentage, 13.25% to 14.75% chromium; 4.5% to 5.5% nickel; 0.11% to 0.17% carbon; 0.01% to 0.31% titanium; and the balance of weight percent comprising iron and incidental elements and impurities.

公开(公告)号：US20240145137A1

公开(公告)日：2024-05-02

申请号：US18280725

申请日：2022-01-17

Applicant: FUJIAN CHANGTING GOLDEN DRAGON RARE-EARTH CO., LTD

Inventor： Xing WEI ,  Jiaying HUANG ,  Zhihui TANG ,  Qingfang HUANG ,  Zhipeng JIANG ,  Deqin XU ,  Dakun CHEN ,  Gang FU

IPC: H01F1/057 ,  B22F3/16 ,  B22F9/02 ,  B22F9/04 ,  C22C1/02 ,  C22C30/02 ,  H01F41/00

CPC classification number: H01F1/0577 ,  B22F3/16 ,  B22F9/023 ,  B22F9/04 ,  C22C1/02 ,  C22C30/02 ,  H01F41/00 ,  B22F2009/044 ,  B22F2201/03 ,  B22F2201/11 ,  B22F2201/20 ,  B22F2202/05 ,  B22F2301/355 ,  B22F2304/10 ,  B22F2998/10 ,  B22F2999/00 ,  C22C2202/02

Abstract: A main and auxiliary alloy-based neodymium-iron-boron magnet material and the preparation method thereof. The raw material composition for the main and auxiliary alloy-based neodymium-iron-boron magnet material includes a main alloy raw material and an auxiliary alloy raw material, wherein the mass percentage of the auxiliary alloy raw material in the raw material composition for the main and auxiliary alloy-based neodymium-iron-boron magnet material is 1.0-15.0 mass %. For the main and auxiliary alloy-based neodymium-iron-boron magnet material prepared by using the raw material composition, the coercivity is increased while high remanence is ensured, and the preparation method therefor can be suitable for engineering applications.

公开(公告)号：US11958111B2

公开(公告)日：2024-04-16

申请号：US17180994

申请日：2021-02-22

Applicant: General Electric Company

Inventor： David Alan Bartosik ,  Thomas Graham Spears

IPC: B22F12/41 ,  B22F10/36 ,  B22F10/85 ,  B22F12/70 ,  B22F12/90 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

CPC classification number: B22F10/36 ,  B22F10/85 ,  B22F12/41 ,  B22F12/70 ,  B22F12/90 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B22F2201/02 ,  B22F2201/11 ,  B22F2201/12

Abstract: An additive manufacturing machine may include a beam source, a process chamber, a beam column operably coupled to the process chamber and/or defining a portion of the process chamber, and a gaseous ionization detector disposed about the beam column. The gaseous ionization detector may be configured to detect elementary particles corresponding to an ionizing gas ionized by an energy beam from the beam source. A method of additively manufacturing a three-dimensional object may include determining data from a gaseous ionization detector disposed about a beam column of an additive manufacturing machine, and additively manufacturing a three-dimensional object using the additive manufacturing machine based at least in part on the data from the gaseous ionization detector. A computer-readable medium may include computer-executable instructions, which when executed by a processor associated with an additive manufacturing machine, cause the additive manufacturing machine to perform a method in accordance with the present disclosure.

公开(公告)号：US20240117472A1

公开(公告)日：2024-04-11

申请号：US18343272

申请日：2023-06-28

Applicant: ATI Properties LLC

Inventor： Reza Sharghi-Moshtaghin ,  John W. Foltz, IV ,  Christopher M. O’Brien ,  Joseph A. Jankowski ,  Andrew Temple ,  Matias Garcia-Avila

IPC: C22C19/05 ,  B22F9/08 ,  B22F10/28 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  C22F1/00 ,  C22F1/10

CPC classification number: C22C19/056 ,  B22F9/082 ,  B22F10/28 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  C22F1/002 ,  C22F1/10 ,  B22F2201/11 ,  B22F2301/15 ,  B22F2998/10 ,  B22F2999/00

Abstract: Disclosed is a nickel-base alloy comprising, in weight percentages based on total alloy weight: 11 to 18 chromium; 16 to 28 cobalt; 1.5 to 7.0 molybdenum; 0 to 6.5 tungsten; 0 to 1.0 niobium; 1.0 to 2.5 aluminum; 2.0 to 6.0 titanium; 0 to 2.0 tantalum; 0 to 4.0 iron; 0 to 0.5 hafnium; 0.01 to 0.2 carbon; 0.001 to 0.02 boron; 0.001 to 0.1 zirconium; nickel; and impurities. Also disclosed is a nickel-base alloy comprising, in weight percentages based on total alloy weight: 11 to 18 chromium; 24 to 28 cobalt; 1.5 to 7.0 molybdenum; 2.0 to 6.0 tungsten; 0 to 1.0 niobium; 1.0 to 2,5 aluminum; 2,0 to 6.0 titanium; 0 to 2.0 tantalum; 0 to 4.0 iron; 0 to 0.5 hafnium; 0.01 to 0.2 carbon; 0.001 to 0.02 boron; 0.001 to 0.1 zirconium; nickel; and impurities.

公开(公告)号：US20240071662A1

公开(公告)日：2024-02-29

申请号：US18455842

申请日：2023-08-25

Applicant: TDK CORPORATION

Inventor： Kyohei TAKAHASHI ,  Hiroshi ITO ,  Isao KANADA

IPC: H01F1/20 ,  B22F1/054 ,  B22F1/145 ,  B22F3/02 ,  B22F9/04 ,  B22F9/30 ,  C22C19/00 ,  C22C19/07

CPC classification number: H01F1/20 ,  B22F1/054 ,  B22F1/147 ,  B22F3/02 ,  B22F9/04 ,  B22F9/30 ,  C22C19/002 ,  C22C19/007 ,  C22C19/07 ,  B22F2201/11 ,  B22F2202/01 ,  B22F2301/15 ,  B22F2304/054 ,  B22F2998/10 ,  B22F2999/00 ,  C22C2202/02

Abstract: The metal magnetic powder includes Co as a main component, and an average particle size (D50) of 1 nm to 100 nm. An X-ray diffraction chart of the metal magnetic powder has a first peak that appears in a range of a diffraction angle 2θ of 41.6±0.3°, and a second peak that appears in a range of a diffraction angle 20θ of 47.4±0.3°. When a full width at half maximum of the first peak is set as FW1, and a full width at half maximum of the second peak is set as FW2, a ratio (FW2/FW1) of FW2 to FW1 is 1 to 5.

公开(公告)号：US11911826B2

公开(公告)日：2024-02-27

申请号：US17200475

申请日：2021-03-12

Applicant: UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING

Inventor： Gang Chen ,  Mingli Qin ,  Qiying Tao ,  Xuanhui Qu

IPC: B22F9/04 ,  B33Y70/00 ,  B01J2/16 ,  B22F1/052

CPC classification number: B22F9/04 ,  B01J2/16 ,  B22F1/052 ,  B33Y70/00 ,  B22F2009/044 ,  B22F2201/02 ,  B22F2201/11 ,  B22F2202/15 ,  B22F2301/205

Abstract: A method of preparation of titanium and titanium alloy powder for 3D printing is based on a fluidized bed jet milling technique. Hydride-dehydrite titanium powder and titanium alloy powder are used as main raw material powder, jet milling and shaping are carried out in shielding atmosphere of nitrogen or argon, and finally high-performance titanium and titanium alloy powder meeting the requirements of 3D printing process is obtained. The titanium and titanium alloy powder prepared using this method has a narrow particle size distribution, approximately spherical shape, and controllable oxygen content.

公开(公告)号：US11898226B2

公开(公告)日：2024-02-13

申请号：US16800012

申请日：2020-02-25

Applicant: UT-Battelle, LLC

Inventor： Corson L. Cramer ,  James O. Kiggans, Jr. ,  Amelia M. Elliott ,  David C. Anderson

IPC: C22C29/06 ,  C22C32/00 ,  B22F3/10 ,  B33Y70/10 ,  C04B41/51 ,  C22C1/10 ,  B33Y10/00 ,  C04B41/88 ,  C04B41/00

CPC classification number: C22C29/062 ,  B22F3/1021 ,  B33Y10/00 ,  B33Y70/10 ,  C04B41/009 ,  C04B41/5155 ,  C04B41/88 ,  C22C1/1036 ,  C22C29/067 ,  C22C32/0057 ,  B22F2201/11 ,  B22F2201/20 ,  B22F2301/052 ,  B22F2302/10 ,  B22F2303/05 ,  B22F2304/10

Abstract: A method for additive manufacturing of a composite object containing a bonded network of boron carbide particles and aluminum occupying spaces between boron carbide particles, the method comprising: (i) producing a porous preform constructed of boron carbide by an additive manufacturing process in which particles of boron carbide are bonded together; and (ii) infiltrating molten aluminum, at a temperature of 1000-1400° C., into pores of said porous preform to produce said composite object constructed of boron carbide particles within an aluminum matrix, wherein the boron carbide is present in the composite object in an amount of 30-70 wt. %. The resulting composite material is also herein described.

公开(公告)号：US20240034622A1

公开(公告)日：2024-02-01

申请号：US18022655

申请日：2021-08-31

Applicant: SANTOKU CORPORATION

Inventor： Takayuki OTSUKI ,  Hiroki HAYASHI ,  Yoshiharu TAKATA ,  Shinji IKEUCHI ,  Noboru NISHIGAKI

IPC: C01B3/00 ,  C22C19/00 ,  C22C19/03 ,  C22C1/02 ,  B22F9/08 ,  B22F9/04 ,  B22F1/068 ,  B22F1/142

CPC classification number: C01B3/0057 ,  C22C19/007 ,  C22C19/03 ,  C22C1/02 ,  B22F9/08 ,  B22F9/04 ,  B22F1/068 ,  B22F1/142 ,  C22C2202/04 ,  B22F2999/00 ,  B22F2998/10 ,  B22F2301/155 ,  B22F2201/11

Abstract: Hydrogen storage materials being inexpensive and having hydrogen absorption (storage) and desorption properties suitable for hydrogen storage are provided. The hydrogen storage materials have alloys with an elemental composition of Formula (1), a hydrogen storage container containing the hydrogen storage material, and a hydrogen supply apparatus including the hydrogen storage container:


LaaCebSmcNidMe   (1)

wherein M is Mn or both of Mn and Co, a satisfies 0.60≤a≤0.90, b satisfies 0≤b≤0.30, c satisfies 0.05≤c≤0.25, d satisfies 4.75≤d≤5.20, e satisfies 0.05≤e≤0.40, a+b+c=1, and d+e satisfies 5.10≤d+e≤5.35.