公开(公告)号：US11584979B2

公开(公告)日：2023-02-21

申请号：US17263559

申请日：2018-08-30

申请人： CENTRAL SOUTH UNIVERSITY

发明人： Zuming Liu ,  Quan Li ,  Boyun Huang ,  Xueqian Lv ,  Kai Peng ,  Fan Zhao

IPC分类号： C22C32/00 ,  B22F9/04 ,  C22C38/22 ,  C22C38/28 ,  G01N23/04 ,  B22F1/052

摘要： An oxide dispersion-strengthened (ODS) iron-based alloy powder and a characterization method thereof are provided. The alloy powder comprises a matrix and strengthening phases. The strengthening phases include at least two types of strengthening phase particles with different sizes, wherein a volume of the particles with a particle size of less than or equal to 50 nm accounts for 85-95% of a total volume of all the strengthening phase particles. The matrix is a Fe—Cr—W—Ti alloy. The characterization method of the ODS iron-based alloy powder comprises separating the strengthening phases from the powder matrix through electrolysis, and analyzing and characterizing the strengthening phases using an electron microscope.

公开(公告)号：US11532414B2

公开(公告)日：2022-12-20

申请号：US16774865

申请日：2020-01-28

申请人： DENSO CORPORATION

发明人： Masataka Mitomi ,  Tomoyasu Watanabe

IPC分类号： H01F1/22 ,  H01F27/255 ,  H01F41/02 ,  B22F1/00 ,  B22F3/24 ,  B22F3/16 ,  B22F1/052

摘要： A powder for dust core used for a dust core includes a plurality of crystal grains, and the powder has at least two maximal values when a number ratio that is a ratio of the number of the crystal grains at each crystal grain diameter to the number of the crystal grains each crystal grain diameter of which has been measured is plotted with respect to each crystal grain diameter of the crystal grains.

公开(公告)号：US11529683B2

公开(公告)日：2022-12-20

申请号：US17263117

申请日：2019-07-29

申请人： INNOMAQ 21, S.L.

发明人： Isaac Valls Angles

IPC分类号： B22F9/10 ,  B33Y70/00 ,  B22F9/08 ,  B22F1/052 ,  B22F1/065

摘要： A production method of particulate materials, through centrifugal atomization (CA) is disclosed. The method is suitable for obtaining fine spherical powders with exceptional morphological quality and extremely low content, or even absence, of nonspherical shape particles and internal voids. An appropriate cost effective method for industrial scale production of metal alloy, intermetallic, metal matrix composite or metal-like material powders in large batches is also disclosed. The atomization technique can be extended to other than the centrifugal atomization with rotating element techniques.

公开(公告)号：US20220395898A1

公开(公告)日：2022-12-15

申请号：US17846300

申请日：2022-06-22

申请人： The Trustees of Princeton University ,  Heavy Metal LLC

发明人： Adam Bayne Hopkins ,  Salvatore TORQUATO

IPC分类号： B22F1/052 ,  B28B1/00 ,  B22F7/02 ,  B23K26/342 ,  B33Y10/00 ,  C04B35/111 ,  C04B35/547 ,  C04B35/56 ,  B33Y70/00 ,  B29C64/153 ,  B29C64/165 ,  C04B28/02 ,  C04B20/00 ,  B29C64/371 ,  B22F10/20 ,  B22F1/065 ,  B23K26/354 ,  B22F3/11 ,  B22F7/00 ,  B29C45/00 ,  C03C3/04 ,  C03C12/00 ,  C04B35/626 ,  C22C14/00 ,  C22C32/00 ,  C22C38/00 ,  C22C38/02 ,  C22C38/44 ,  C22C38/56

摘要： The present invention relates to granular composite density enhancement, and related methods and compositions. The applications where these properties are valuable include but are not limited to: 1) additive manufacturing (“3D printing”) involving metallic, ceramic, cermet, polymer, plastic, or other dry or solvent-suspended powders or gels, 2) concrete materials, 3) solid propellant materials, 4) cermet materials, 5) granular armors, 6) glass-metal and glass-plastic mixtures, and 7) ceramics comprising (or manufactured using) granular composites.

公开(公告)号：US11508529B2

公开(公告)日：2022-11-22

申请号：US17177230

申请日：2021-02-17

申请人： Global Advanced Metals USA, Inc.

发明人： Craig M. Sungail ,  Aamir Dawood Abid

IPC分类号： B22F9/04 ,  C25D11/26 ,  H01G9/052 ,  H01G9/00 ,  H01G9/042 ,  H01G9/04 ,  H01G11/00 ,  B22F1/052 ,  B22F1/065 ,  B22F1/142 ,  H01G9/025

摘要： Anodes made from powder, such as tantalum powder, that is highly spherical is described. Methods to make the anodes are further described.

公开(公告)号：US11478848B2

公开(公告)日：2022-10-25

申请号：US16960419

申请日：2019-02-06

申请人： H.C. Starck Tungsten GmbH

发明人： Juliane Meese-Marktscheffel ,  Armin Olbrich ,  Anja Weiland ,  Frank Van Der Pütten ,  Ines Lamprecht

IPC分类号： B22F1/02 ,  B22F1/16 ,  B33Y70/00 ,  B22F1/052

摘要： The present invention relates to a method for producing hard materials that are coated with a cobalt hydroxide compound and to powders that comprise the coated hard material particles, and the use thereof.

公开(公告)号：US20220325384A1

公开(公告)日：2022-10-13

申请号：US17850730

申请日：2022-06-27

申请人： Obshchestvo S Ogranichennoy Otvetstvennost'yu "Obedinennaya Kompaniya Rusal Inzhenerno-Tekhnologiche

发明人： Viktor Khrist'yanovich Mann ,  Aleksandr Yur'evich Krokhin ,  Dmitrij Konstantinovich Ryabov ,  Roman Olegovich Vakromov ,  Vladimir Aleksandrovich Korolev ,  Ivan Yur'evich Mikhajlov ,  Aleksandr Gareginovich Seferyan

IPC分类号： C22C21/00 ,  B22F1/052

摘要： The invention relates to the field of metallurgy, namely to new heat-resistant aluminum alloys used in additive technologies. The alloy includes nickel, manganese, iron, zirconium, cerium, at least one element selected from the group: copper, magnesium, zinc, and at least one element selected from the group: silicon, calcium, where Ni>Mn+Fe, one or more eutectic phases of the type of Al3Ni, Al16Mn3Ni, Al9FeNi, which are thermally stable, and dispersoids of the Al3Zr type, which ensure an ultimate strength of a resulting product of at least 370 MPa. The technical effect is the development of an aluminum material used in the form of a powder, which has good processability when printing and increased strength characteristics at room temperature after printing, without a significant decrease in strength after annealing.

公开(公告)号：US20220288676A1

公开(公告)日：2022-09-15

申请号：US17608398

申请日：2020-05-01

申请人： Tekna Systèmes Plasma Inc.

发明人： Xavier Cauchy ,  Hakim Rahma

IPC分类号： B22F1/052 ,  B22F1/065 ,  C22C16/00 ,  C22C21/02 ,  C22C19/05 ,  B33Y70/00 ,  B22F9/14

摘要： In additive manufacturing operations, powders used in stereolithographic processes need to be precisely spread out in a uniform fashion at every pass of the stereolithographic process to ensure predictability in powder surface morphology. Typically, this is difficult to achieve with conventional powders because often these powders suffer from poor flowability, which may further deteriorate over time, and impairs the efficiency of the stereolithographic processes. The present disclosure describes additive manufacturing powders having improved physical characteristics such as flowability and tap density, which are less sensitive or insensitive to ambient humidity. For example, there is described a powder that includes spherical particles having a particle size distribution of less than 1000 micrometers and having a measurable flowability as determined in accordance with ASTM B213 at 75% relative humidity.

公开(公告)号：US20220258234A1

公开(公告)日：2022-08-18

申请号：US17618769

申请日：2020-06-13

申请人： METAL ADDITIVE TECHNOLOGIES

发明人： Bogdan CHETROIU ,  Nicolas PAILLONCY

IPC分类号： B22F3/10 ,  B22F1/052 ,  C22C1/04

摘要： Disclosed is a method for manufacturing a metal part made from titanium, by sintering a powder, the method comprising a step of mixing a spherical titanium powder and a dendritic titanium powder in order to form a mixture, a step of agglomerating the mixture of titanium powders by compaction with a ram moving at a speed of more than 2 m·s−1, the mixture of titanium powders being free of binders, in particular organic binders, forming a green body or agglomerate suitable for sintering having a density above 78%, and preferably 80%, of the density of the solid metal, and a step of sintering.

公开(公告)号：US11376657B2

公开(公告)日：2022-07-05

申请号：US16048032

申请日：2018-07-27

申请人： Lawrence Livermore National Security, LLC ,  National Technology & Engineering Solutions of Sandia, LLC

发明人： Michael Bagge-Hansen ,  Patrick G. Campbell ,  Jeffrey Colvin ,  Sergei Kucheyev ,  Thomas E. Felter

IPC分类号： B22F1/00 ,  B22F9/02 ,  B22F9/08 ,  C01G3/02 ,  B22F1/054 ,  C22C1/04 ,  B22F9/30 ,  B22F3/11 ,  C22C1/08 ,  C01G3/10 ,  B22F9/24 ,  B22F1/07 ,  B22F1/052 ,  B22F1/0545 ,  C01G5/00 ,  B82Y40/00

摘要： Disclosed here is a method for making a nanoporous material, comprising aerosolizing a solution comprising at least one metal salt and at least one solvent to obtain an aerosol, freezing the aerosol to obtain a frozen aerosol, and drying the frozen aerosol to obtain a nanoporous metal compound material. Further, the nanoporous metal compound material can be reduced to obtain a nanoporous metal material.