公开(公告)号：US11840750B2

公开(公告)日：2023-12-12

申请号：US17839800

申请日：2022-06-14

Applicant: Michael T. Stawovy ,  Scott D. Ohm ,  Fahrron C Fill

Inventor： Michael T. Stawovy ,  Scott D. Ohm ,  Fahrron C Fill

IPC: C22C27/04 ,  B22F9/04 ,  B22F9/02 ,  B33Y70/00 ,  B22F10/00 ,  B22F1/103 ,  B22F10/14 ,  B22F9/08 ,  B22F3/10 ,  B33Y10/00 ,  C22C1/04 ,  B22F1/10 ,  B22F1/148 ,  B22F10/25 ,  B22F10/32 ,  B22F10/66

CPC classification number: C22C27/04 ,  B22F1/103 ,  B22F9/026 ,  B22F9/04 ,  B22F9/082 ,  B22F10/00 ,  B22F10/14 ,  B33Y70/00 ,  B22F1/10 ,  B22F1/148 ,  B22F3/10 ,  B22F3/1021 ,  B22F10/25 ,  B22F10/32 ,  B22F10/66 ,  B22F2009/041 ,  B22F2201/013 ,  B22F2202/13 ,  B22F2207/13 ,  B22F2207/17 ,  B22F2301/10 ,  B22F2301/15 ,  B22F2301/20 ,  B22F2301/35 ,  B22F2999/00 ,  B33Y10/00 ,  C22C1/045 ,  B22F2999/00 ,  B22F3/10 ,  B22F2201/013 ,  B22F2999/00 ,  C22C1/045 ,  B22F1/10 ,  B22F9/026 ,  B22F1/148 ,  B22F2999/00 ,  B22F1/10 ,  B22F9/026 ,  C22C1/045 ,  B22F1/148

Abstract: In various embodiments, metallic alloy powders are formed at least in part by spray drying to form agglomerate particles and/or plasma densification to form composite particles.

公开(公告)号：US11752548B2

公开(公告)日：2023-09-12

申请号：US17413762

申请日：2019-12-02

Applicant: ZHUHAI RUNXINGTAI ELECTRICAL CO., LTD

Inventor： Ying Zhang ,  Jie Tan ,  Jicheng Wang ,  Gunan Li ,  Ziqiang Huang ,  Huaide Ren

IPC: B22D43/00 ,  B22F1/148 ,  B22D1/00 ,  B22D17/00 ,  B22D27/02 ,  C22F1/04 ,  B22F9/08

CPC classification number: B22D43/004 ,  B22D1/00 ,  B22D17/007 ,  B22D27/02 ,  B22F1/148 ,  C22F1/04 ,  B22F9/08

Abstract: A die casting method includes stirring an aluminum alloy liquid in a stirrer under an airtight vacuum condition. The stirrer includes an electromagnetic inductor and a stirring rod. The aluminum alloy liquid is simultaneously subjected to an electromagnetic stirring in a direction of a magnetic field generated by the electromagnetic inductor and a mechanical stirring under a rotation action of the stirring rod. The aluminum alloy liquid is stirred for 20-80 minutes until the aluminum alloy liquid becomes semisolid to obtain a semisolid aluminum alloy slurry. The method further includes injecting the semisolid aluminum alloy slurry into a filter die to perform die casting molding at an injection speed of 1.5-2.5 m/s, an injection specific pressure of 30-80 MPa, a pressurization pressure of 60-80 MPa, and a temperature of the filter die of 250-400° C., and maintaining pressure for 7-30 seconds to obtain the filtering cavity.

公开(公告)号：US20230160038A1

公开(公告)日：2023-05-25

申请号：US17988888

申请日：2022-11-17

Applicant: Ohio State Innovation Foundation

Inventor： Aihua Luo ,  Xuejun Huang ,  Jianyue Zhang

IPC: C22C1/04 ,  C22C1/02 ,  C22C21/10 ,  C22C23/00 ,  B22F1/148

CPC classification number: C22C1/0416 ,  C22C1/026 ,  C22C21/10 ,  C22C23/00 ,  B22F1/148

Abstract: Disclosed herein are metal matrix composites and methods of making and use thereof. For example, disclosed herein are methods of making a metal matrix composite comprising a metal matrix reinforced by a high entropy alloy. The methods comprise mixing a first powder and a second powder to form a powder mixture, wherein the first powder comprises a plurality of particles comprising a metal and the second powder comprises a plurality of particles comprising a high entropy alloy. The methods further comprise compacting the powder mixture to form a pellet and adding the pellet to a molten metal, the molten metal comprising the metal in a molten state, thereby melting the pellet to form a molten mixture. The methods further comprise subjecting the molten mixture to an ultrasonic treatment and casting the ultrasonic treated mixture to form the metal matrix composite.

公开(公告)号：US20220176447A1

公开(公告)日：2022-06-09

申请号：US17442512

申请日：2020-03-25

Applicant: FURUYA METAL CO., LTD.

Inventor： Genki ANO ,  Tomohiro MARUKO ,  Tomoaki MIYAZAWA ,  Yuichi IWAMOTO ,  Satoshi KITA

IPC: B22F1/142 ,  B22F1/0655 ,  B22F1/05 ,  B22F1/148 ,  B22F10/28 ,  B33Y40/10 ,  B33Y70/00

Abstract: The method of producing a solid spherical powder according to the present disclosure includes: a step A of preparing a first powder raw material containing agglomerated particles and/or solidified particles having a particle diameter of 1 μm to 1,000 μm and introducing the first powder raw material into a plasma flame to produce a hollow spherical powder having a surface layer shell having a thickness of 1 μm to 50 μm; a step B of subjecting the hollow spherical powder to pulverization treatment to pulverize a hollow shape of the hollow spherical powder, thus obtaining a second powder raw material which is solid; and a step C of introducing the second powder raw material into a plasma flame, melting and solidifying the second powder raw material to obtain the solid spherical powder.

公开(公告)号：US11697880B2

公开(公告)日：2023-07-11

申请号：US16325614

申请日：2017-08-16

Applicant: SERAM COATINGS AS

Inventor： Nuria Espallargas ,  Fahmi Mubarok

IPC: B22F1/18 ,  B32B5/16 ,  C23C4/10 ,  C04B35/628 ,  C23C4/134 ,  C04B35/565 ,  C04B35/622 ,  C23C18/18 ,  C23C18/34 ,  C23C4/06 ,  C04B35/583 ,  C23C18/16 ,  C04B35/563 ,  C23C18/08 ,  C23C18/12 ,  C04B35/584 ,  C23C18/36 ,  B22F1/17 ,  B22F1/148 ,  C04B35/626 ,  C23C18/32

CPC classification number: C23C4/10 ,  B22F1/148 ,  B22F1/17 ,  C04B35/563 ,  C04B35/565 ,  C04B35/583 ,  C04B35/584 ,  C04B35/62222 ,  C04B35/62645 ,  C04B35/62695 ,  C04B35/62842 ,  C04B35/62886 ,  C23C4/06 ,  C23C4/134 ,  C23C18/08 ,  C23C18/1216 ,  C23C18/1245 ,  C23C18/1295 ,  C23C18/1635 ,  C23C18/1689 ,  C23C18/1692 ,  C23C18/1696 ,  C23C18/1886 ,  C23C18/1893 ,  C23C18/32 ,  C23C18/34 ,  C23C18/36 ,  B22F2999/00 ,  C04B2235/3826 ,  C04B2235/405 ,  C04B2235/5436 ,  B22F2999/00 ,  B22F1/17 ,  B22F9/24

Abstract: A process comprising: (i) coating particles of silicon carbide, silicon nitride, boron carbide or boron nitride with a metal alloy or metal layer; (ii) agglomerating the particles of step (i); thermally spraying the agglomerated metal or metal alloy coated particles onto a substrate to provide a coating thereon.

公开(公告)号：US20230150193A1

公开(公告)日：2023-05-18

申请号：US17956207

申请日：2022-09-29

Applicant: Desktop Metal, Inc.

Inventor： Emanuel Michael Sachs ,  George Hudelson ,  Paul A. Hoisington ,  Christopher Benjamin Renner ,  Keith Roy Vaillancourt ,  Edward Russell Moynihan

IPC: B29C64/165 ,  B33Y10/00 ,  B29C64/393 ,  B33Y50/02 ,  B29C64/209 ,  B33Y30/00 ,  B29C64/30 ,  B29C64/20 ,  B28B1/00 ,  B29C64/364 ,  B29C64/371 ,  B22F10/00 ,  B22F1/148 ,  B22F10/14 ,  B22F12/10 ,  B22F12/84 ,  B22F10/32

CPC classification number: B29C64/165 ,  B33Y10/00 ,  B29C64/393 ,  B33Y50/02 ,  B29C64/209 ,  B33Y30/00 ,  B29C64/30 ,  B29C64/20 ,  B28B1/001 ,  B29C64/364 ,  B29C64/371 ,  B22F10/00 ,  B22F1/148 ,  B22F10/14 ,  B22F12/10 ,  B22F12/84 ,  B22F10/32 ,  B22F2999/00 ,  B22F12/53

Abstract: Devices, systems, and methods are directed to the use of vapor phase change in binder jetting processes for forming three-dimensional objects. In general, a vapor of a first fluid may be directed to a layer of a powder spread across a build volume. The vapor may condense to reduce mobility of the particles of the powder of the layer. For example, the condensing vapor may reduce the likelihood of particle ejection from the layer and, thus, may reduce the likelihood of clogging or otherwise degrading a printhead used to jet a second fluid (e.g., a binder) to the layer. Further, or instead, the condensing vapor may increase the density of the powder in the layer which, when repeated over a plurality of layers forming a three-dimensional object, may reduce the likelihood of slumping of the part during sintering.

公开(公告)号：US11504768B2

公开(公告)日：2022-11-22

申请号：US16486581

申请日：2018-02-16

Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY

Inventor： Juha Lagerbom ,  Marjaana Karhu ,  Hanna-Mari Sinilehto ,  Ulla Kanerva

IPC: B22F9/02 ,  B22F1/10 ,  B22F1/148 ,  B22F9/04 ,  B22F9/08

Abstract: A method for producing hard metal powder suitable for manufacturing hard metal products including metal carbides and a binder is provided. An easy to carry out method that provides high quality hard metal powder includes: a) dissolving in water, water soluble raw materials and a binder source to form an aqueous solution, b) drying the aqueous solution to form a precursor powder having the raw materials homogenously distributed throughout the precursor powder, c) decomposing the precursor powder by heating the powder in an inert atmosphere to remove gas evolved in the decomposition of the raw materials, d) grinding the precursor powder and mixing it with a liquid media to produce a suspension, e) spray drying the suspension to agglomerate the precursor powder, and f) heat treating the agglomerated precursor powder to form a hard metal powder containing agglomerates of carbides evenly distributed and bonded to a metallic matrix.

公开(公告)号：US11493667B2

公开(公告)日：2022-11-08

申请号：US16959395

申请日：2019-01-31

Applicant: NORTHWESTERN UNIVERSITY

Inventor： Chad A. Mirkin ,  Lin Sun ,  Haixin Lin ,  George C. Schatz

IPC: G02B1/00 ,  B22F1/07 ,  B22F1/16 ,  B22F1/102 ,  B22F1/148 ,  B82Y20/00 ,  B82Y40/00

Abstract: Provided herein are methods of preparing three-dimensional photonic crystals having tunable optical properties and control over stopband location and width, the three-dimensional photonic crystals comprising nanoparticles and spacer groups.

公开(公告)号：US20220127143A1

公开(公告)日：2022-04-28

申请号：US17547768

申请日：2021-12-10

Applicant: Kohei Taguchi

Inventor： Kohei Taguchi ,  Kazuteru Shinozaki ,  Satoshi Takayasu

IPC: C01B6/02 ,  B22F9/26 ,  C01B6/00 ,  B22F1/054 ,  B22F1/148 ,  B22F9/24

Abstract: To provide a metal-based structure or nanoparticles whose homogeneity is not deteriorated and whose sticking formation is easy, and a production method thereof with a high safety. A metal-based structure comprises a hydrogen compound, cluster, or an aggregate thereof, represented by the general formula: MmH. The M is a metal-based atom. The m is an integer of 3 or more and 300 or less. H is a hydrogen atom.

公开(公告)号：US20250050411A1

公开(公告)日：2025-02-13

申请号：US18706519

申请日：2022-10-28

Applicant: OERLIKON METCO (US) INC.

Inventor： Yi HU

IPC: B22F1/16 ,  B22F1/00 ,  B22F1/148 ,  C22C21/02 ,  C23C4/06 ,  C23C4/10 ,  C23C4/134

Abstract: A powder agglomerate for an abradable sealant coating is provided that includes a first powder having a pure metal or a metal alloy; and a second powder including a mineral, in which the powder agglomerate has at least one morphology selected from a porous agglomerate, a hollow agglomerate, a complex agglomerate, and a composite agglomerate. A powder agglomeration method that does not use fugitive phases and porosity formers, such as polymers, is also provided.