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公开(公告)号：US20200261976A1
公开(公告)日：2020-08-20
申请号：US16869739
申请日：2020-05-08
发明人： John H. MARTIN , Tobias A. SCHAEDLER , Brennan YAHATA , Jacob M. HUNDLEY , Jason A. GRAETZ , Adam F. GROSS , William CARTER
IPC分类号： B22F3/10 , B33Y10/00 , B33Y70/00 , B29C64/153
摘要： Disclosed herein are surface-functionalized powders which alter the solidification of the melted powders. Some variations provide a powdered material comprising a plurality of particles fabricated from a first material, wherein each of the particles has a particle surface area that is continuously or intermittently surface-functionalized with nanoparticles and/or microparticles selected to control solidification of the powdered material from a liquid state to a solid state. Other variations provide a method of controlling solidification of a powdered material, comprising melting at least a portion of the powdered material to a liquid state, and semi-passively controlling solidification of the powdered material from the liquid state to a solid state. Several techniques for semi-passive control are described in detail. The methods may further include creating a structure through one or more techniques selected from additive manufacturing, injection molding, pressing and sintering, capacitive discharge sintering, or spark plasma sintering.
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公开(公告)号：US20220314316A1
公开(公告)日：2022-10-06
申请号：US17838000
申请日：2022-06-10
发明人： John H. MARTIN , Tobias A. SCHAEDLER , Brennan YAHATA , Jacob M. HUNDLEY , Jason A. GRAETZ , Adam F. GROSS , William CARTER
IPC分类号： B22F3/10 , B33Y10/00 , B33Y70/00 , B29C64/153
摘要： Disclosed herein are surface-functionalized powders which alter the solidification of the melted powders. Some variations provide a powdered material comprising a plurality of particles fabricated from a first material, wherein each of the particles has a particle surface area that is continuously or intermittently surface-functionalized with nanoparticles and/or microparticles selected to control solidification of the powdered material from a liquid state to a solid state. Other variations provide a method of controlling solidification of a powdered material, comprising melting at least a portion of the powdered material to a liquid state, and semi-passively controlling solidification of the powdered material from the liquid state to a solid state. Several techniques for semi-passive control are described in detail. The methods may further include creating a structure through one or more techniques selected from additive manufacturing, injection molding, pressing and sintering, capacitive discharge sintering, or spark plasma sintering.
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公开(公告)号：US20190002353A1
公开(公告)日：2019-01-03
申请号：US15946680
申请日：2018-04-05
发明人： Zak C. ECKEL , Jacob M. HUNDLEY , Robert MONE
IPC分类号： C04B35/589 , C04B35/524 , B28B1/00
CPC分类号： C04B35/589 , B28B1/001 , B33Y70/00 , C01B21/0648 , C01P2004/03 , C04B35/524 , C04B35/571 , C04B35/583 , C04B35/597 , C04B35/63452 , C04B2235/483 , C04B2235/486 , C04B2235/6562 , C04B2235/6565 , C04B2235/6567 , C04B2235/77 , C04B2235/96 , C08G77/20 , C08G77/28 , C08L83/02 , C08L83/04 , C08L83/08 , C08L83/00 , C08K5/07
摘要： Resins for 3D printing of a preceramic composition loaded with a solid polymer filler, followed by converting the preceramic composition to a 3D-printed ceramic material, are described. Some variations provide a preceramic composition containing a radiation-curable liquid resin formulation and a solid polymer filler dispersed within the liquid resin formulation. The liquid resin formulation is compatible with stereolithography, UV curing, and/or 3D printing. The solid polymer filler may be an organic polymer, an inorganic polymer, or a combination thereof. The solid polymer filler may itself be an inorganic preceramic polymer, which may have the same composition as a polymerized variant of the liquid resin formulation, or a different composition. Many compositions are disclosed as options for the liquid resin formulation and the solid polymer filler.
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4.发明公开公开(公告)号：US20230364714A1
公开(公告)日：2023-11-16
申请号：US18106333
申请日：2023-02-06
IPC分类号： B23K26/342 , B23K9/04 , B23K26/06 , B23K26/073 , C30B13/06 , C30B13/24 , C30B29/00 , C30B29/68 , C30B19/08 , B22F3/10 , B33Y80/00 , B22F10/10 , C30B29/52 , C30B13/32
CPC分类号： B23K26/342 , B23K9/044 , B23K26/0604 , B23K26/0734 , C30B13/06 , C30B13/24 , C30B29/00 , C30B29/68 , C30B19/08 , B22F3/1028 , B33Y80/00 , B22F10/10 , C30B29/52 , C30B13/32 , B33Y70/00
摘要： Some variations provide a method of making an additively manufactured single-crystal metallic component, comprising: providing a feedstock comprising a first metal or metal alloy; providing a build plate comprising a single crystal of a second metal or metal alloy; exposing the feedstock to an energy source for melting the feedstock, generating a melt layer on the build plate; and solidifying the melt layer, generating a solid layer (on the build plate) of a metal component. The solid layer is also a single crystal of the first metal or metal alloy. The method may be repeated many times to build the part. Some variations provide a single-crystal metallic component comprising a plurality of solid layers in an additive-manufacturing build direction, wherein the plurality of solid layers forms a single crystal of a metal or metal alloy with a continuous crystallographic texture. The crystal orientation may vary along the additive-manufacturing build direction.
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公开(公告)号：US20210283689A1
公开(公告)日：2021-09-16
申请号：US17332229
申请日：2021-05-27
摘要： Some variations provide a process for additive manufacturing of a nanofunctionalized metal alloy, comprising: providing a nanofunctionalized metal precursor containing metals and grain-refining nanoparticles; exposing a first amount of the nanofunctionalized metal precursor to an energy source for melting the precursor, thereby generating a first melt layer; solidifying the first melt layer, thereby generating a first solid layer; and repeating many times to generate a plurality of solid layers in an additive-manufacturing build direction. The additively manufactured, nanofunctionalized metal alloy has a microstructure with equiaxed grains. Other variations provide an additively manufactured, nanofunctionalized metal alloy comprising metals selected from aluminum, iron, nickel, copper, titanium, magnesium, zinc, silicon, lithium, silver, chromium, manganese, vanadium, bismuth, gallium, or lead; and grain-refining nanoparticles selected from zirconium, tantalum, niobium, titanium, or oxides, nitrides, hydrides, carbides, or borides thereof, wherein the additively manufactured, nanofunctionalized metal alloy has a microstructure with equiaxed grains.
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6.发明公开公开(公告)号：US20240336994A1
公开(公告)日：2024-10-10
申请号：US18747526
申请日：2024-06-19
IPC分类号： C22C9/00 , B22F9/02 , B23K26/342 , B33Y10/00 , B33Y70/00 , C22C5/02 , C22C5/06 , C22C11/00 , C22C12/00 , C22C13/00 , C22C14/00 , C22C16/00 , C22C18/00 , C22C19/03 , C22C19/07 , C22C21/00 , C22C22/00 , C22C27/00 , C22C27/02 , C22C27/04 , C22C27/06 , C22C28/00 , C22C38/00 , C22C49/14
CPC分类号： C22C9/00 , B22F9/02 , B23K26/342 , B33Y70/00 , C22C5/02 , C22C5/06 , C22C11/00 , C22C12/00 , C22C13/00 , C22C14/00 , C22C16/00 , C22C18/00 , C22C19/03 , C22C19/07 , C22C21/00 , C22C22/00 , C22C27/00 , C22C27/02 , C22C27/04 , C22C27/06 , C22C28/00 , C22C38/00 , C22C49/14 , B22F2304/10 , B33Y10/00
摘要： Some variations provide a metal-alloy biphasic system containing a first metal M1 and a second metal M2, wherein a second metal phase has a melting temperature lower than that of a first metal phase, and wherein the metal-alloy biphasic system has a hierarchical microstructure containing a second length scale that is at least one order of magnitude smaller than a first length scale. Some variations provide a metal-alloy biphasic system containing a first metal M1 and a second metal M2, wherein a second metal phase has a melting temperature lower than that of a first metal phase, and wherein the first metal phase forms a continuous network. Other variations provide a metal-alloy biphasic powder containing at least a first metal and a second metal, wherein the solubility of first metal in second metal is less than 5%. Methods of making and using the powders and biphasic system are disclosed.
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公开(公告)号：US20240082913A1
公开(公告)日：2024-03-14
申请号：US18517092
申请日：2023-11-22
摘要： Some variations provide a process for additive manufacturing of a nanofunctionalized metal alloy, comprising: providing a nanofunctionalized metal precursor containing metals and grain-refining nanoparticles; exposing a first amount of the nanofunctionalized metal precursor to an energy source for melting the precursor, thereby generating a first melt layer; solidifying the first melt layer, thereby generating a first solid layer; and repeating many times to generate a plurality of solid layers in an additive-manufacturing build direction. The additively manufactured, nanofunctionalized metal alloy has a microstructure with equiaxed grains. Other variations provide an additively manufactured, nanofunctionalized metal alloy comprising metals selected from aluminum, iron, nickel, copper, titanium, magnesium, zinc, silicon, lithium, silver, chromium, manganese, vanadium, bismuth, gallium, or lead; and grain-refining nanoparticles selected from zirconium, tantalum, niobium, titanium, or oxides, nitrides, hydrides, carbides, or borides thereof, wherein the additively manufactured, nanofunctionalized metal alloy has a microstructure with equiaxed grains.
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公开(公告)号：US20210146439A1
公开(公告)日：2021-05-20
申请号：US17026218
申请日：2020-09-19
摘要： This disclosure provides an improvement over the state of the art by teaching a low-cost method to produce feedstock powder, without undergoing a phase change, from industrially relevant wrought alloys that are widely available at low cost. The surfaces of aspherical particles are functionalized with particulates having a different size and composition than the particles, to control the solidification response of the feedstock. Some variations provide a metal-containing functionalized material comprising: a plurality of aspherical particles comprising a metal or a metal alloy; and a plurality of metal-containing or ceramic particulates that are assembled on surfaces of the aspherical particles, wherein the particulates are compositionally different than the aspherical particles. Methods of making and using the metal-containing functionalized materials are described. The invention provides an economic advantage over traditional gas-atomized or water-atomized metal powder feedstocks for powder-based metal additive manufacturing or other powder metallurgy processes.
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公开(公告)号：US20170021417A1
公开(公告)日：2017-01-26
申请号：US15209903
申请日：2016-07-14
发明人： John H. MARTIN , Tobias A. SCHAEDLER , Brennan YAHATA , Jacob M. HUNDLEY , Jason A. GRAETZ , Adam F. GROSS , William CARTER
IPC分类号： B22F3/10 , B29C45/00 , B28B1/00 , B22F5/00 , B22F1/00 , B22F3/16 , B22F3/105 , B29C67/00 , B28B1/24
摘要： Disclosed herein are surface-functionalized powders which alter the solidification of the melted powders. Some variations provide a powdered material comprising a plurality of particles fabricated from a first material, wherein each of the particles has a particle surface area that is continuously or intermittently surface-functionalized with nanoparticles and/or microparticles selected to control solidification of the powdered material from a liquid state to a solid state. Other variations provide a method of controlling solidification of a powdered material, comprising melting at least a portion of the powdered material to a liquid state, and semi-passively controlling solidification of the powdered material from the liquid state to a solid state. Several techniques for semi-passive control are described in detail. The methods may further include creating a structure through one or more techniques selected from additive manufacturing, injection molding, pressing and sintering, capacitive discharge sintering, or spark plasma sintering.
摘要翻译： 本文公开了改变熔融粉末固化的表面官能化粉末。 一些变型提供了包括由第一材料制成的多个颗粒的粉末材料，其中每个颗粒具有连续或间歇地表面官能化的纳米颗粒和/或微粒的颗粒表面积，用于控制粉末材料的固化 液态到固态。 其它变型提供了一种控制粉末材料固化的方法，包括将至少一部分粉末材料熔化成液态，并半主动地控制粉末材料从液态至固态的固化。 详细描述了半无源控制的几种技术。 所述方法还可以包括通过选自添加剂制造，注塑，压制和烧结，电容放电烧结或火花等离子体烧结中的一种或多种技术来产生结构。
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