Method for preparing emissive coating for electrodes

Details Method for preparing emissive coating for electrodes Method for preparing emissive coating for electrodes

1974-07-10

1976-04-27

Padgett, Benjamin R.

Compositions

Electrically conductive or emissive compositions

Metal compound containing

252500, 423593, H01B 106

Patent

active

039533760

ABSTRACT:
An electron emissive coating for long life fluorescent lamps comprises a composition of barium tantalate having the formula M(BaO) . N(Ta.sub.2 O.sub.5) where the ratio M/N is greater than 1.

REFERENCES:
patent: 2724070 (1955-11-01), Heine et al.
patent: 2985548 (1961-05-01), Blickwedel
patent: 3718831 (1973-02-01), Butter et al.
patent: 3755553 (1973-08-01), Kutolin et al.
patent: 3758809 (1973-09-01), Menelly et al.
patent: 3766423 (1973-10-01), Menelly
patent: 3798492 (1974-03-01), Menelly
patent: 3837909 (1974-09-01), Menelly
patent: 3842469 (1974-10-01), Menelly

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