公开(公告)号：US3823337A

公开(公告)日：1974-07-09

申请号：US36387773

申请日：1973-05-25

Applicant: PHILIPS CORP

Inventor： MITRA N ,  VAN STRATUM A ,  ZALM P

IPC: H01J1/14 ,  H01J1/148 ,  H01J1/15 ,  H01J19/06

CPC classification number: H01J1/15 ,  H01J1/148

Abstract: A cathode suitable for poor vacuum conditions and repeated exposures to air consists of a molybdenum support, compact or compressed powder, welded on a tungsten wire and having thereon a compressed mixture of rhenium with lanthanum hexaboride. Instead of rhenium, a tungsten boride such as W2B or W2B5 may be chosen.

公开(公告)号：US3833494A

公开(公告)日：1974-09-03

申请号：US35662073

申请日：1973-05-02

Applicant: PHILIPS CORP

Inventor： VAN STRATUM A ,  MITRA N

IPC: H01J9/04 ,  H01J17/06 ,  C23B13/00

CPC classification number: H01J9/042

Abstract: A layer of lanthanum hexaboride is applied cataphoretically to a rhenium wire and then sintered. The process is repeated. In this manner a cathode with small evaporation and long life is obtained.

Abstract translation: 将六硼酸镧层通过阴离子涂布到铼丝上，然后烧结。 重复该过程。 以这种方式获得具有小蒸发和长寿命的阴极。