Oxide-coated cathodes for electron tubes

Details Oxide-coated cathodes for electron tubes Oxide-coated cathodes for electron tubes

1979-01-18

1980-07-29

Rutledge, L. Dewayne

Stock material or miscellaneous articles

All metal or with adjacent metals

Having metal particles

313311, 313341, 427 77, 427111, 427122, 428368, 428389, 428471, 428472, 428623, 428632, 428633, 428634, 428680, H01J 115

Patent

active

042151805

ABSTRACT:
An oxide-coated cathode for electron tubes which comprises a base metal plate made of an alloy comprising nickel as a main component and 2% by weight or more of at least one high-melting point metal, an oxide layer coated on the base metal plate comprising at least one oxide of a reducing element, a carbon coating layer coated on the oxide layer, and an alkaline earth oxide layer capable of emitting electrons coated on the carbon coating layer can maintain electron emitting life for a long period of time due to the prevention of interfacial reaction between the base metal plate and the alkaline earth oxide layer by the oxide layer and the carbon coating layer.

REFERENCES:
patent: 2438732 (1948-03-01), Williams
patent: 3446607 (1969-05-01), Volk et al.
patent: 3500454 (1970-03-01), Emerick
patent: 3539859 (1970-11-01), Bongle
patent: 3769084 (1973-10-01), Saito et al.
patent: 3826946 (1974-07-01), Hummer et al.
patent: 4081713 (1978-03-01), Misumi
patent: 4129801 (1978-12-01), Soeno et al.

Affiliated with

Also associated with

Rating

Oxide-coated cathodes for electron tubes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Oxide-coated cathodes for electron tubes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oxide-coated cathodes for electron tubes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-905377