Vacuum tight assembly

Details Vacuum tight assembly Vacuum tight assembly

1978-12-26

1980-04-15

Rutledge, L. Dewayne

Receptacles

Envelope for electric lamp or similar device

Tv tube

313311, 313317, 428633, 428660, H01J 6130, H01K 128

Patent

active

041979575

ABSTRACT:
A vacuum-tight assembly such as a discharge tube for a metal vapor arc lamp is formed from a transparent or translucent ceramic composition sealed with a member formed from a vanadium-zirconium alloy or vanadium utilizing a brazing alloy. The vanadium or vanadium alloy and the brazing alloy have thermal coefficients of expansion closely matching that of the ceramic composition.

REFERENCES:
patent: 3294701 (1966-12-01), Vogel et al.
patent: 3420780 (1969-01-01), Forrat et al.
patent: 3719550 (1973-03-01), Arendt
patent: 3785992 (1974-01-01), Fay et al.
patent: 3897223 (1975-07-01), Purdy et al.
patent: 4004173 (1977-01-01), Rigden
Hill, R. et al, "Oxidation Resistant, High Temperature Ceramic-to-Metal Seal Compatible with Cesium", Rev. Sci. Instr., vol. 38, No. 8, 8/67, pp. 1067-1068.
Berndt et al, "New A'"B'"O.sub.3 Interlanthamide Pervoshite Compounds", L. Solid State Chem., 13, 131-135, (1975).
Geller et al., "Phase Transitions in Perovskite Compounds of the Rare Earths", Phys. Rev. B, vol. 2, No. 4, 8/70, pp. 1167-1172.
Plakhty et al, "X-Ray Study of the Phase Transition and Lattice Vibration of Lauthanum Aluminate", Izvestyu Ak. Nav. USSR, vol. 2, No. 3, 3/66, pp. 517-523.

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