Reaction cathode

Details Reaction cathode Reaction cathode

1975-10-06

1977-04-19

Chatmon, Jr., Saxfield

Electric lamp and discharge devices

Electrode and shield structures

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

252521, 428 77, 313337, 313346DC, H01J 114, H01J 1906

Patent

active

040190811

ABSTRACT:
A reaction cathode with high thermic emission which is especially suited for vacuum tube application and which contains a compound of a monolayer forming element which is liberated by a supply reaction which proceeds during the operation of the cathode, wherein the monolayer forming element is at least one of the elements selected from the group consisting of yttrium and lanthanum, and wherein said cathode further contains at least one metal selected from the group consisting of palladium, platinum, rhodium and ruthenium, as a diffusion-enhancing agent.

REFERENCES:
patent: 3134924 (1964-05-01), Henderson et al.
patent: 3155864 (1964-11-01), Coppola
patent: 3437865 (1969-04-01), Gabor et al.
patent: 3454816 (1969-07-01), Hoffmann et al.
patent: 3497757 (1970-02-01), Zalm et al.
patent: 3631291 (1971-12-01), Favreau
patent: 3823337 (1974-07-01), Van Stratum et al.
patent: 3833494 (1974-09-01), Van Stratum et al.

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