Oxide-coated cathode and method of producing the same

Details Oxide-coated cathode and method of producing the same Oxide-coated cathode and method of producing the same

1980-09-16

1983-01-18

Dixon, Harold A.

Electric lamp and discharge devices

Electrode and shield structures

Cathodes containing and/or coated with electron emissive...

313346DC, 427 77, H01J 114

Patent

active

043693920

ABSTRACT:
An oxide-coated cathode used for the electron tubes such as cathode ray tubes and camera tubes, comprising as the base a sintered product principally composed of an alkaline earth metal compound and a high-melting-point metal and having high heat conductivity and low specific resistance, said sintered product being either used singly or layered on a high-melting-point metal body containing a reducible element or elements as impurity, and an oxide cathode material coated on said base, and a method of producing such oxide-coated cathode.

REFERENCES:
patent: 2722626 (1955-11-01), Coppola et al.
patent: 3243638 (1966-03-01), Affleck
patent: 3351486 (1967-11-01), Buescher et al.
patent: 3393090 (1968-07-01), Barraco

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