公开(公告)号：US20240302104A1

公开(公告)日：2024-09-12

申请号：US18664167

申请日：2024-05-14

Applicant: California Institute of Technology

Inventor： Weibo Chen ,  Benjamin I. Furst ,  Scott N. Roberts

IPC: F28D15/02 ,  F28D15/04

CPC classification number: F28D15/0241 ,  F28D15/04

Abstract: Systems and methods for thermal management using separable heat pipes and methods of manufacture thereof. Various embodiments provide a porous insert that can be used to join or connect heat pipes. Further embodiments provide thermal management systems that are modular, expandable, reparable, by allowing for joining of evaporators, condensers, and adiabatic sections via porous inserts. Various embodiments allow for two-phase thermal management systems, where liquid and gaseous phases can be transported simultaneously. Certain embodiments incorporate heat generating components with embedded evaporators and/or condensers. Many embodiments are additively manufactured, including via 3D printing.

公开(公告)号：US20220212254A1

公开(公告)日：2022-07-07

申请号：US17456867

申请日：2021-11-29

Applicant: California Institute of Technology

Inventor： Douglas C. Hofmann ,  Andre M. Pate ,  Scott N. Roberts

IPC: B22F10/10 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  C22C16/00

Abstract: Systems and methods for developing tough hypoeutectic amorphous metal-based materials for additive manufacturing, and methods of additive manufacturing using such materials are provided. The methods use 3D printing of discrete thin layers during the assembly of bulk parts from metallic glass alloys with compositions selected to improve toughness at the expense of glass forming ability. The metallic glass alloy used in manufacturing of a bulk part is selected to have minimal glass forming ability for the per layer cooling rate afforded by the manufacturing process, and may be specially composed for high toughness.

公开(公告)号：US11185921B2

公开(公告)日：2021-11-30

申请号：US15989083

申请日：2018-05-24

Applicant: California Institute of Technology

Inventor： Douglas C. Hofmann ,  Andre M. Pate ,  Scott N. Roberts

IPC: B22F3/00 ,  B33Y10/00 ,  B33Y70/00 ,  C22C16/00 ,  B22F10/10 ,  B33Y80/00

Abstract: Systems and methods for developing tough hypoeutectic amorphous metal-based materials for additive manufacturing, and methods of additive manufacturing using such materials are provided. The methods use 3D printing of discrete thin layers during the assembly of bulk parts from metallic glass alloys with compositions selected to improve toughness at the expense of glass forming ability. The metallic glass alloy used in manufacturing of a bulk part is selected to have minimal glass forming ability for the per layer cooling rate afforded by the manufacturing process, and may be specially composed for high toughness.

公开(公告)号：US11114713B2

公开(公告)日：2021-09-07

申请号：US16447824

申请日：2019-06-20

Applicant: California Institute of Technology

Inventor： Eric T. Sunada ,  Scott N. Roberts ,  Benjamin I. Furst ,  Ratnakumar V. Bugga

IPC: H01M10/613 ,  H01M10/653 ,  H01M10/6567 ,  H01M10/658 ,  H01M10/6552 ,  H01M10/6569

Abstract: Thermal management systems for battery cells and methods for their additive manufacture are provided. The thermal management systems include at least one heat pipe that physically contacts the battery cell and conforms to its geometry. Each battery cell is deposited within a separate heat pipe, and each heat pipe is disposed on a base plate, which itself connects to a heat sink. In many embodiments, the heat pipe is a two-phase heat exchanger having three major components: liquid channels, wick elements, and vapor channels. In such embodiments, the wick component comprises a porous body configured to be disposed between the liquid channels and vapor channels. The wick component may be made using a stochastic additive manufacturing process such that the wick component may take any configuration and/or such that the wick component may be directly integrated into the body of the heat pipe as a unitary piece thereof. In other embodiments, the heat pipe is a cavity with flow channels in which fluid can be pumped through. In some such embodiments, the fluid can occupy the heat pipe in a one-phase or two-phase state. This unitary heat pipe is part of a monolithic thermal management system.

公开(公告)号：US20210207281A1

公开(公告)日：2021-07-08

申请号：US17191409

申请日：2021-03-03

Applicant: California Institute of Technology

Inventor： Douglas C. Hofmann ,  Scott N. Roberts

IPC: C25D5/56 ,  C25D3/12 ,  C25D7/00 ,  B33Y10/00 ,  B33Y80/00 ,  C23C18/31 ,  C23C18/16 ,  B29C64/135 ,  B29C70/70 ,  B29D99/00 ,  B29C70/02 ,  B29C70/72

Abstract: Systems and method for fabricating a metal core truss pan& with seamlessly embedded features in accordance with embodiments of the invention are illustrated. One embodiment includes a method for producing a metal core truss pan& composite, the method including fabricating a sacrificial core truss panel including a plurality of interconnected truss members and at least one embedded feature, and plating the sacrificial core truss panel with a layer of metal forming a metal core truss panel including a plurality of interconnected metal truss members and at least one seamlessly embedded metal feature.

公开(公告)号：US10968527B2

公开(公告)日：2021-04-06

申请号：US15346592

申请日：2016-11-08

Applicant: California Institute of Technology

Inventor： Douglas C. Hofmann ,  Scott N. Roberts

IPC: C25D5/56 ,  C25D3/12 ,  C25D7/00 ,  B33Y10/00 ,  B33Y80/00 ,  C23C18/31 ,  C23C18/16 ,  B29C64/135 ,  B29C70/70 ,  B29D99/00 ,  B29C70/02 ,  B29C70/72 ,  B29K705/00 ,  B29L7/00

Abstract: Systems and method for fabricating a metal core truss panel with seamlessly embedded features in accordance with embodiments of the invention are illustrated. One embodiment includes a method for producing a metal core truss panel composite, the method including fabricating a sacrificial core truss panel including a plurality of interconnected truss members and at least one embedded feature, and plating the sacrificial core truss panel with a layer of metal forming a metal core truss panel including a plurality of interconnected metal truss members and at least one seamlessly embedded metal feature.

公开(公告)号：US10746475B2

公开(公告)日：2020-08-18

申请号：US15666217

申请日：2017-08-01

Applicant: California Institute of Technology

Inventor： Scott N. Roberts ,  Arthur J. Mastropietro ,  Benjamin I. Furst ,  Eric T. Sunada ,  Jordan Mizerak ,  Hiroki Nagai ,  Stefano Cappucci

IPC: F28D15/02 ,  F28D15/04 ,  H01L23/427 ,  H01L23/34

Abstract: Multi-phase thermal control systems, evaporators, variable porous wick elements, heat transfer structures, and methods for their production are provided. Two-phase evaporators for use in such multi-phase thermal control systems are also provided. Two-phase evaporators incorporate a vapor plate body having there three major layers: a vapor channel network, a wick, and a liquid channel. The vapor channel network comprises a plurality of extrusions (e.g., vapor pillars) and associated channels (e.g., vapor channels) configured to allow a vapor to flow therethrough. The wick comprises a porous body configured to be disposed between the vapor channel network of and the liquid flow reservoir.

公开(公告)号：US20140342179A1

公开(公告)日：2014-11-20

申请号：US14252585

申请日：2014-04-14

Applicant: California Institute of Technology

Inventor： Douglas C. Hofmann ,  Scott N. Roberts

IPC: C22C45/10 ,  B21D37/16

CPC classification number: C22C45/10 ,  Y10T428/12479

Abstract: Systems and methods in accordance with embodiments of the invention advantageously shape sheet materials that include metallic glass-based materials. In one embodiment, a method of shaping a sheet of material including a metallic glass-based material includes: heating a metallic glass-based material within a first region within a sheet of material to a temperature greater than the glass transition temperature of the metallic glass-based material; where the sheet of material has a thickness of between 0.1 mm and 10 mm; where at least some portion of the sheet of material does not include metallic glass-based material that is heated above its respective glass transition temperature when the metallic glass-based material within the first region is heated above its respective glass transition temperature; and deforming the metallic glass-based material within the first region while the temperature of the metallic glass-based material within the first region is greater than its respective glass transition temperature.

Abstract translation: 根据本发明的实施例的系统和方法有利地形成包括金属玻璃基材料的片材。 在一个实施例中，一种成形包括金属玻璃基材料的材料片的方法包括：将金属玻璃基材料加热到材料片内的第一区域内的温度高于金属玻璃的玻璃化转变温度 的材料; 其中该材料片的厚度为0.1mm至10mm; 其中当第一区域内的金属玻璃基材料被加热到其相应的玻璃化转变温度以上时，材料片材的至少一部分不包括被加热到其相应的玻璃化转变温度以上的金属玻璃基材料; 并且在第一区域内的金属玻璃基材料的温度大于其各自的玻璃化转变温度的同时使金属玻璃基材料在第一区域内变形。

公开(公告)号：US20140312098A1

公开(公告)日：2014-10-23

申请号：US14259608

申请日：2014-04-23

Applicant: California Institute of Technology

Inventor： Douglas C. Hofmann ,  Scott N. Roberts

IPC: B23K20/10

CPC classification number: B23K20/22 ,  B23K20/10 ,  B23K20/103

Abstract: Systems and methods in accordance with embodiments of the invention fabricate objects including metallic glass-based materials using ultrasonic welding. In one embodiment, a method of fabricating an object that includes a metallic glass-based material includes: ultrasonically welding at least one ribbon to a surface; where at least one ribbon that is ultrasonically welded to a surface has a thickness of less than approximately 150 μm; and where at least one ribbon that is ultrasonically welded to a surface includes a metallic glass-based material.

Abstract translation: 根据本发明的实施例的系统和方法使用超声波焊接来制造包括金属玻璃基材料的物体。 在一个实施例中，制造包括金属玻璃基材料的物体的方法包括：将至少一个带超声波焊接到表面; 其中至少一个超声波焊接到表面的带具有小于约150μm的厚度; 并且其中超声波焊接到表面的至少一个带包括金属玻璃基材料。