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公开(公告)号：US12195834B2
公开(公告)日：2025-01-14
申请号：US17861972
申请日：2022-07-11
Applicant: Ford Global Technologies, LLC , Northwestern University
Inventor： James M. Boileau , Bita Ghaffari , David N. Seidman , David C. Dunand , Anthony De Luca
Abstract: A method of forming an aluminum alloy component including melting and solidifying an aluminum alloy, solution treating the aluminum alloy, and heat treating the aluminum alloy. The aluminum alloy includes scandium, zirconium, erbium, silicon, at least one of molybdenum and tungsten, manganese and the balance aluminum and incidental impurities. The concentration of the alloying elements, in atom %, is greater than 0.0 and less than or equal to 0.15 scandium, greater than 0.0 and less than or equal to 0.35 zirconium, greater than 0.0 and less than or equal to 0.15 erbium, greater than 0.0 and less than or equal to 0.2 silicon, greater than 0.0 and less or equal to 0.75 molybdenum when included, greater than 0.0 and less than or equal to 0.35 tungsten when included.
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公开(公告)号：US20240292753A1
公开(公告)日：2024-08-29
申请号：US18589066
申请日：2024-02-27
Applicant: Northwestern University , Battelle Energy Allliance, LLC
IPC: H10N10/01 , B22F3/10 , B22F3/20 , B22F10/10 , H10N10/854
CPC classification number: H10N10/01 , B22F3/1021 , B22F3/1039 , B22F3/20 , B22F10/10 , H10N10/854 , B22F2301/15 , B22F2301/205 , B22F2301/30
Abstract: In certain aspects of the disclosure, a method includes creating ink specimens. The method includes solidifying, via solvent evaporation, the ink specimens to identify Ni powders and Ti powders. The method includes debinding and pre-sintering the Ni powders and the Ti powders to form a porous NiTi skeleton. The method includes infiltrating the porous NiTi skeleton with a transient liquid. The method includes reaction sintering the NiTi of the porous NiTi skeleton and the Sn to reactively form TiNiSn. Ternary-phase thermoelectric materials formed by the method are also provided.
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公开(公告)号：US20230083886A1
公开(公告)日：2023-03-16
申请号：US17903339
申请日：2022-09-06
Applicant: Northwestern University
Inventor： Luke Clyde Oak Prestowitz , Jiaxing Huang , David C. Dunand
Abstract: Methods of treating metal nanocrystals are provided. In embodiments, such a method comprises exposing metal nanocrystals comprising a metal and characterized by at least one twinning boundary therein, to a plating solution comprising a reducing agent and coating metal cations comprising a different metal, under conditions to form a coating of the different metal on surfaces of the metal nanocrystals via electroless deposition by chemical reduction of the coating metal cations, thereby providing coated metal nanocrystals. Methods of forming bulk nanostructured metal alloys from the coated metal nanocrystals are also provided.
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公开(公告)号：US12104237B2
公开(公告)日：2024-10-01
申请号：US17670883
申请日：2022-02-14
Applicant: NORTHWESTERN UNIVERSITY
Inventor： Amir Rezaei Farkoosh , David C. Dunand , David N. Seidman
Abstract: This invention discloses a series of low-cost, castable, weldable, brazeable and heat-treatable aluminum alloys based on modifications of aluminum-manganese-based alloys, which turn all the non-heat treatable Mn-containing aluminum alloys into heat treatable alloys with high-strength, ductility, thermal stability, and resistance to creep, coarsening and recrystallization. These alloys inherit the excellent corrosion resistance of the Al—Mn-based alloys and can be utilized in high temperature, high stress and a variety of other applications. The modifications are made through microalloying with one or any combinations of tin, indium, antimony and bismuth at an impurity level of less than 0.02 at. %, which creates nanoscale α-Al(Mn,TM)Si precipitates with a cubic structure (wherein TM is one or more of transition metals, and Mn is the main element) in an Al(f.c.c.)-matrix with a mean radius of about 25 nm and a relatively high volume fraction of about 2%.
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5.发明公开公开(公告)号：US20240082912A1
公开(公告)日：2024-03-14
申请号：US18367019
申请日：2023-09-12
Applicant: NORTHWESTERN UNIVERSITY
Inventor： Jacob Benjamin Mack , Samuel Mark Pennell , David C. Dunand
CPC classification number: B22F3/1143 , B22F3/1017 , B22F9/04 , C01B3/0084 , C22C38/12 , B22F2009/043 , B22F2301/35 , B22F2998/10 , B22F2999/00
Abstract: This invention in one aspect relates to an iron-based foam usable for an electrochemical device, comprising a composition comprising iron and a refractory element processed to form the iron-based foam having a hierarchical porous structure with self-assembled channels for gas flow reactions and internal space to accommodate volumetric changes on oxidation.
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Patent Agency Ranking
公开(公告)号：US20220267884A1
公开(公告)日：2022-08-25
申请号：US17670883
申请日：2022-02-14
Applicant: NORTHWESTERN UNIVERSITY
Inventor： Amir Rezaei Farkoosh , David C. Dunand , David N. Seidman
Abstract: This invention discloses a series of low-cost, castable, weldable, brazeable and heat-treatable aluminum alloys based on modifications of aluminum-manganese-based alloys, which turn all the non-heat treatable Mn-containing aluminum alloys into heat treatable alloys with high-strength, ductility, thermal stability, and resistance to creep, coarsening and recrystallization. These alloys inherit the excellent corrosion resistance of the Al—Mn-based alloys and can be utilized in high temperature, high stress and a variety of other applications. The modifications are made through microalloying with one or any combinations of tin, indium, antimony and bismuth at an impurity level of less than 0.02 at. %, which creates nanoscale α-Al(Mn,TM)Si precipitates with a cubic structure (wherein TM is one or more of transition metals, and Mn is the main element) in an Al(f.c.c.)-matrix with a mean radius of about 25 nm and a relatively high volume fraction of about 2%.
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公开(公告)号：US20130131443A1
公开(公告)日：2013-05-23
申请号：US13682179
申请日：2012-11-20
Applicant: NORTHWESTERN UNIVERSITY
Inventor： Brian V. Le , David C. Dunand , Kevin T. McVary , Alberto Colombo
IPC: A61F2/26
CPC classification number: A61F2/26 , A61F2210/0023 , A61L27/06 , A61L27/50 , A61L31/14 , A61L2400/16
Abstract: A penile prosthesis is disclosed that can alternate between an erect and flaccid state based on the shape memory properties of an exoskeleton that is responsive to increases and decreases in temperature. The exoskeleton consists of a shape memory alloy, such as nitinol, which in the erect configuration can radially expand and resist axial loads and buckling forces during coitus. The shape memory alloy is temperature-tuned to undergo a change to an erect state under external application of heat and can revert to a flaccid state with cooling below resting penile temperature.
Abstract translation: 公开了一种阴茎假体，其可以基于响应于温度的升高和降低的外骨骼的形状记忆特性而在直立和松弛状态之间交替。 外骨骼由形状记忆合金如镍钛诺组成，其在直立构型中可以径向扩张并抵抗轴颈负荷和屈曲力。 形状记忆合金被温度调节以在外部施加热时经历改变为直立状态，并且可以在冷却低于静息阴茎温度的情况下回复到松弛状态。
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公开(公告)号：US11408061B2
公开(公告)日：2022-08-09
申请号：US16590094
申请日：2019-10-01
Applicant: Ford Global Technologies, LLC , Northwestern University
Inventor： Anthony De Luca , David N. Seidman , David C. Dunand , James M. Boileau , Bita Ghaffari
Abstract: A high temperature creep-resistant aluminum alloy microalloyed with manganese and molybdenum and/or tungsten is provided. The aluminum alloy includes scandium, zirconium, erbium, silicon, at least one of molybdenum and tungsten, manganese and the balance aluminum and incidental impurities. The concentration of the alloying elements, in atom %, is greater than 0.0 and less than or equal to 0.15 scandium, greater than 0.0 and less than or equal to 0.35 zirconium, greater than 0.0 and less than or equal to 0.15 erbium, greater than 0.0 and less than or equal to 0.2 silicon, greater than 0.0 and less or equal to 0.75 molybdenum when included, greater than 0.0 and less than or equal to 0.35 tungsten when included, and greater than 0.0 and less than or equal to 1.5 manganese. And the total concentration of Zr+Er+Sc is greater than or equal to 0.1.
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公开(公告)号：US20210095365A1
公开(公告)日：2021-04-01
申请号：US16590094
申请日：2019-10-01
Applicant: Ford Global Technologies, LLC , Northwestern University
Inventor： Anthony De Luca , David N. Seidman , David C. Dunand , James M. Boileau , Bita Ghaffari
Abstract: A high temperature creep-resistant aluminum alloy microalloyed with manganese and molybdenum and/or tungsten is provided. The aluminum alloy includes scandium, zirconium, erbium, silicon, at least one of molybdenum and tungsten, manganese and the balance aluminum and incidental impurities. The concentration of the alloying elements, in atom %, is greater than 0.0 and less than or equal to 0.15 scandium, greater than 0.0 and less than or equal to 0.35 zirconium, greater than 0.0 and less than or equal to 0.15 erbium, greater than 0.0 and less than or equal to 0.2 silicon, greater than 0.0 and less or equal to 0.75 molybdenum when included, greater than 0.0 and less than or equal to 0.35 tungsten when included, and greater than 0.0 and less than or equal to 1.5 manganese. And the total concentration of Zr+Er+Sc is greater than or equal to 0.1.
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10.发明授权Methods for fabricating three-dimensional metallic objects via additive manufacturing using metal oxide pastes 有权通过使用金属氧化物糊料的添加剂制造来制造三维金属物体的方法公开(公告)号：US09327448B2
公开(公告)日：2016-05-03
申请号：US14449839
申请日：2014-08-01
Applicant: Northwestern University
Inventor： Ramille N. Shah , Adam E. Jakus , David C. Dunand
CPC classification number: B29C67/0055 , B22F3/008 , B22F3/227 , B22F2201/013 , B29C64/106
Abstract: Methods of forming three-dimensional metallic objects are provided. A metal oxide paste comprising metal oxide particles, a polymeric binder and an organic solvent is extruded through a tip to deposit sequential layers of the metal oxide paste on a substrate to form a three-dimensional metal oxide object. The three-dimensional metal oxide object is exposed to a reducing gas at a temperature and for a period of time sufficient to reduce and to sinter the metal oxide particles to form a three-dimensional metallic object. Depending upon the composition of the metal oxide paste, the three-dimensional metallic object may be composed of a single metal, a simple or complex metal-metal alloy, or a metal-ceramic composite.
Abstract translation: 提供形成三维金属物体的方法。 将包含金属氧化物颗粒，聚合物粘合剂和有机溶剂的金属氧化物糊料通过尖端挤出以在基板上沉积金属氧化物浆料的顺序层以形成三维金属氧化物物体。 三维金属氧化物物体在足以减少和烧结金属氧化物颗粒以形成三维金属物体的温度和时间的温度下暴露于还原气体。 根据金属氧化物糊的组成，三维金属物体可以由单一金属，简单或复杂的金属 - 金属合金或金属 - 陶瓷复合材料构成。
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