公开(公告)号：US4910079A

公开(公告)日：1990-03-20

申请号：US287328

申请日：1988-12-21

Applicant: Arvind Shroff ,  Serge Vilminot ,  Dominique Brion ,  Bernard Carriere ,  Veronique Hebert

Inventor： Arvind Shroff ,  Serge Vilminot ,  Dominique Brion ,  Bernard Carriere ,  Veronique Hebert

IPC: B22F3/26 ,  H01J1/28 ,  H01J9/04

CPC classification number: B22F3/26 ,  H01J1/28 ,  H01J9/042 ,  Y10T428/249955 ,  Y10T428/249956 ,  Y10T428/249957

Abstract: Disclosed are a method for the fabrication of an impregnated cathode and a cathode obtained thereby. The impregnation is obtained by applying a sol-gel method. The emissive material which impregnates the body of the cathode only partially fills the pores. This facilitates the migration of the material towards the surface and increases the lifetime of the cathode.

Abstract translation: 公开了一种用于制造由此获得的浸渍阴极和阴极的方法。 通过施加溶胶 - 凝胶法获得浸渍。 浸渍阴极体的发射材料仅部分填充孔。 这有助于材料向表面的迁移并且增加阴极的寿命。