Scandate cathode and methods of making it

Details Scandate cathode and methods of making it Scandate cathode and methods of making it

1990-10-30

1993-11-23

O'Shea, Sandra L.

Electric lamp and discharge devices

Electrode and shield structures

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

313346DC, 313270, 313337, 313340, 313345, 313355, H01J 128

Patent

active

052647579

ABSTRACT:
To maintain a monolayer of scandium, which is necessary for a satisfactory emission on the surface of a scandate cathode, at least the top layer of the cathode is provided with a scandium-containing oxidic phase from which Scandium is supplied by segregation from this oxidic phase.

REFERENCES:
patent: 3358178 (1967-12-01), Figner et al.
patent: 4007393 (1977-02-01), Van Stratum et al.
patent: 4350920 (1982-09-01), Bertens
patent: 4518890 (1985-05-01), Taguchi et al.
patent: 4594220 (1986-01-01), Hasker et al.
patent: 4625142 (1986-11-01), van Esdonk et al.
patent: 4626470 (1986-12-01), Yamamoto et al.
patent: 4783613 (1988-11-01), Yamamoto et al.
patent: 4797593 (1989-01-01), Saito et al.
patent: 4855637 (1988-02-01), Watanabe et al.
patent: 5006753 (1991-04-01), Hasker et al.
patent: 5064397 (1991-11-01), Hasker et al.
"Properties and Manufacture of Top-Layer Scandate Cathodes", Applied Surface Science, 26, (1986), pp. 173-195, (Apr. 1986).

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