Method of preparing an impregnated cathode with an enhanced ther

Details Method of preparing an impregnated cathode with an enhanced ther Method of preparing an impregnated cathode with an enhanced ther

1992-04-03

1994-03-29

Yusko, Donald J.

Electric lamp and discharge devices

Electrode and shield structures

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

313346DC, H01J 114

Patent

active

052988309

ABSTRACT:
A method is provided of preparing an impregnated cathode with enhanced thionic emission from a porous billet by impregnating the billet with a suitable impregnant in the presence of an oxygen deficient compound.

REFERENCES:
patent: 4783613 (1988-11-01), Yamamoto et al.
patent: 4924137 (1990-05-01), Watanabe et al.
patent: 5118984 (1992-06-01), Saito et al.

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