公开(公告)号：US10714293B1

公开(公告)日：2020-07-14

申请号：US16655676

申请日：2019-10-17

申请人： Government of the United States, as Represented by the Secretary of the Air Force

发明人： Steven B Fairchild

IPC分类号： H01J1/304 ,  C01B32/168 ,  C08K3/04

摘要： A carbon nanotube fiber carpet structure includes a backing material; and a plurality looped carbon nanotube (CNT) fiber conductors fixed to the backing material extending outward from the backing material in an array. The CNT fiber conductor may include at least one of a CNT thread, a CNT fiber, a CNT film, and a CNT ribbon, and the CNT fiber conductor may include a first end and a second end, the first end fixed to the backing material, and the second end fixed to the backing material a predetermined distance from the first end in order to form a loop of the CNT fiber conductor extending away from a backing material surface. The CNT fiber conductor may be woven into the backing material to form a plurality of loops of the CNT fiber conductor extending away from a backing surface material, and the backing material may be a conductive material.

公开(公告)号：US11318561B1

公开(公告)日：2022-05-03

申请号：US16006917

申请日：2018-06-13

申请人： Government of the United States, as Represented by the Secretary of the Air Force

发明人： Steven B Fairchild ,  Daniel P Gortat ,  William O'Neill ,  Martin R Sparkes

IPC分类号： B23K26/354 ,  C21D1/34 ,  C22F1/00

摘要： A method for reducing outgassing from a metal surface comprises applying energy from an energy source to the metal surface sufficient to melt the metal surface; and allowing the metal surface to re-solidify, wherein the re-solidified metal surface comprises larger grains and fewer grain boundaries, reducing outgassing sites for a trapped gas. Applying energy from an energy source is performed in a raster scan pattern. Adjacent passes in the raster scan pattern overlap sufficiently to melt the entire metal surface. The energy source is a laser, such as a CW Yb fiber laser. A spot size and applied energy of the laser energy source applied to the metal surface is sufficient to melt the entire metal surface (appropriate for the absorption and reflection characteristics of the treated material). The application of energy from an energy source releases at least some of a gas trapped in the metal. The trapped gas is atomic hydrogen. The metal surface comprises an electrode of a high power system device. The metal surface is in one of a high-vacuum environment and a vacuum electronic device. The metal surface comprises at least one of steel, stainless steel, nickel, and copper.