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41. 发明申请

US20190330756A1 METHODS OF THREE-DIMENSIONAL ELECTROPHORETIC DEPOSITION FOR CERAMIC AND CERMET APPLICATIONS AND SYSTEMS THEREOF 审中-公开
公开(公告)号：US20190330756A1
公开(公告)日：2019-10-31
申请号：US16505431
申请日：2019-07-08
申请人： Lawrence Livermore National Security, LLC
发明人： Klint Aaron Rose , Joshua D. Kuntz , Marcus A. Worsley
IPC分类号： C25D13/02 , C25D13/12 , C25D13/22 , B32B15/00 , C25D13/20
摘要： A method for forming a ceramic according to one embodiment includes electrophoretically depositing a plurality of layers of particles of a non-cubic material. The particles of the deposited non-cubic material are oriented in a common direction.

42. 发明授权

US10407792B2 Methods of three-dimensional electrophoretic deposition for ceramic and cermet applications and systems thereof 有权
公开(公告)号：US10407792B2
公开(公告)日：2019-09-10
申请号：US15236313
申请日：2016-08-12
申请人： Lawrence Livermore National Security, LLC
发明人： Klint Aaron Rose , Joshua D. Kuntz , Marcus Worsley
IPC分类号： C25D13/02 , B33Y10/00 , C04B37/02 , C25D13/22 , C25D13/20 , C04B37/00 , C25D13/12
摘要： In one embodiment, a method for forming a ceramic, metal, or cermet includes: providing a first solution comprising a first solvent and a first material to a device including an electrophoretic deposition (EPD) chamber; applying a voltage difference across a first electrode and a second electrode of the device; electrophoretically depositing the first material above the first electrode to form a first layer; introducing a second solution including a second solvent and a second material to the EPD chamber; applying a voltage difference across the first electrode and the second electrode; and electrophoretically depositing the second material above the first electrode to form a second layer. The first layer has a first composition, a first microstructure, and a first density, while the second layer has a second composition, a second microstructure, and a second density. At least one of the foregoing features of the first and second layers are different.

43. 发明授权

US10376987B2 Laser pulse shaping for additive manufacturing 有权
公开(公告)号：US10376987B2
公开(公告)日：2019-08-13
申请号：US15010107
申请日：2016-01-29
申请人： LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
发明人： James A. DeMuth , Andrew J. Bayramian , Eric B. Duoss , Joshua D. Kuntz , Christopher M. Spadaccini
IPC分类号： B22F3/105 , B29C64/20 , B33Y10/00 , B23K26/066 , B33Y30/00 , B23K26/0622 , B23K26/342 , B29C64/153 , B33Y50/02
摘要： A system for additive manufacturing uses a pulsed laser beam with one or more low flux components on the order of kW/cm2, and one or more high flux components on the order of MW/cm2 during the duration of the pulse. The pulsed laser beam is directed onto the powder particles on the substrate thereby melting the powder particles and melting the substrate at the interface layer between the powder and the substrate such that the powder particles bond to the substrate. This is accomplished by using low power (and low cost) lasers to do the majority of the energy transfer, and using high power (and higher cost) lasers to complete the melting process, overcoming the kinetics of powder agglomeration through surface tension forces by partially melting the powder-substrate interface layer before surface tension can take effect on the molten powder particles.

44. 发明申请

US20160348262A1 METHODS OF THREE-DIMENSIONAL ELECTROPHORETIC DEPOSITION FOR CERAMIC AND CERMET APPLICATIONS AND SYSTEMS THEREOF 审中-公开
标题翻译：陶瓷和陶瓷应用的三维电泳沉积方法及其系统
公开(公告)号：US20160348262A1
公开(公告)日：2016-12-01
申请号：US15236308
申请日：2016-08-12
申请人： Lawrence Livermore National Security, LLC
发明人： Klint Aaron Rose , Joshua D. Kuntz , Marcus Worsley
IPC分类号： C25D13/02 , C04B37/00 , C25D13/12
摘要： A product according to one embodiment includes a first layer comprising a first material, the first layer having a gradient in composition, microstructure and/or density in an x-y plane, and the x-y plane being oriented parallel to a plane of deposition of the first layer. The first material includes non-spherical particles; and the product is optically transparent. A ceramic according to another embodiment includes a plurality of layers comprising non-spherical particles of a non-cubic material. Each layer is individually characterized by the non-spherical particles thereof being aligned in a common direction. A product in another embodiment includes a first layer having a first composition, a first microstructure, and a first density; and a second layer above the first layer, the second layer having: a second composition, a second microstructure, and/or a second density. A gradient in composition, microstructure, and/or density exists between the first layer and the second layer.
摘要翻译：根据一个实施方案的产品包括包含第一材料的第一层，第一层具有在xy平面中的组成，微结构和/或密度的梯度，且xy平面平行于第一层的沉积平面。第一材料包括非球形颗粒; 并且产品是光学透明的。根据另一个实施方案的陶瓷包括包含非立方体材料的非球形颗粒的多个层。各层的特征在于其非球形颗粒沿共同的方向排列。在另一个实施方案中的产品包括具有第一组成，第一微结构和第一密度的第一层; 和在第一层上方的第二层，第二层具有：第二组合物，第二微结构和/或第二密度。在第一层和第二层之间存在组成，微结构和/或密度的梯度。

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