公开(公告)号：US20230261210A1

公开(公告)日：2023-08-17

申请号：US18167697

申请日：2023-02-10

申请人： California Institute of Technology

发明人： John-Paul JONES ,  Scott N. ROBERTS ,  Keith J. BILLINGS ,  Douglas C. HOFMANN ,  Samad A. FIRDOSY ,  Sarah D. LUDEMAN

IPC分类号： H01M4/88 ,  H01M4/86 ,  B22F10/28 ,  B22F10/366

CPC分类号： H01M4/8825 ,  H01M4/861 ,  H01M4/8636 ,  H01M4/8807 ,  B22F10/28 ,  B22F10/366 ,  B33Y10/00

摘要： A monolithic electrode structure for use in electrochemical flow cells is presented. The monolithic electrode structure includes a dense region with embedded flow channels that provides functionality of a flow field layer and a porous region that provides combined functionalities of gas diffusion and catalyst layers. The monolithic electrode structure is additively fabricated to include regions of different porosities/densities. A material of the monolithic electrode structure is a pure metal that is a catalyst for a targeted electrochemical reaction, or an alloy that contains such pure metal. Porosity of the porous region is adjusted to allow flow of liquid, such as water, towards or away from an active surface of the electrode. According to one aspect, porosity is adjusted by adjusting the pore size that make the porous region. According to another aspect, the dense region contains cooling channels for cooling of the electrode.

公开(公告)号：US20150047463A1

公开(公告)日：2015-02-19

申请号：US13928109

申请日：2013-06-26

申请人： California Institute of Technology

发明人： Douglas C. HOFMANN ,  Andrew KENNETT ,  Kobie T. BOYKINS

IPC分类号： F16H55/06 ,  C22C45/10

CPC分类号： F16H55/06 ,  C22C1/02 ,  C22C14/00 ,  C22C30/00 ,  C22C45/10 ,  Y10T29/49462 ,  Y10T74/19

摘要： Systems and methods in accordance with embodiments of the invention implement bulk metallic glass-based macroscale gears. In one embodiment, a method of fabricating a bulk metallic glass-based macroscale gear, where at least either the thickness of the gear is greater than 3 mm or the diameter of the gear is greater than 9 mm, includes: obtaining design parameters of the gear to be formed; selecting a bulk metallic glass from which the gear will be formed based on the obtained design parameters, where the selected bulk metallic glass is characterized by a resistance to standard modes of wear and a resistance to brittle fracture such that a gear can be formed from the selected bulk metallic glass that accords with the obtained design parameters; and fabricating the gear from the selected bulk metallic glass that accords with the obtained design parameters.

摘要翻译： 根据本发明的实施例的系统和方法实现大量基于金属玻璃的宏观尺寸齿轮。 在一个实施例中，一种制造大块金属玻璃基宏观尺寸齿轮的方法，其中齿轮的厚度至少大于3mm或齿轮的直径大于9mm，包括：获得设计参数 要形成齿轮; 基于所获得的设计参数选择将形成齿轮的块状金属玻璃，其中所选择的块状金属玻璃的特征在于耐标准磨损模式和耐脆性断裂，使得可以从 选择符合所得设计参数的块状金属玻璃; 并且从所选择的块状金属玻璃制造符合所获得的设计参数的齿轮。