Process for providing lithium tantalum oxide coated tantalum art

Details Process for providing lithium tantalum oxide coated tantalum art Process for providing lithium tantalum oxide coated tantalum art

1985-03-27

1987-07-07

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

204 351, 204 376, 204 39, 204 561, C25D 1134

Patent

active

046785469

ABSTRACT:
A process for coating an article made of tantalum niobium or tantalum-niobium alloy with a film containing polycrystalline lithium metal oxide wherein the metal corresponds to the metal from which the article is made. More particularly, the process improves the surface properties including hardness, yield strength, elasticity and electrical properties so that the operating life can be increased and new application for such articles can be made.
It is found that tantalum spinnerets treated in accordance with the process according to the present invention have longer operating life, clog less and produce a better quality fiber.

REFERENCES:
patent: 4054468 (1977-10-01), Honnaker
patent: 4450049 (1984-05-01), Nakata et al.
F. A. Lowenheim, Electroplating, McGraw-Hill Book Co., New York, 1978, pp. 69-86.
Liu Yuzhong, "LiTaO.sub.3 Thin Film and Devices Grown by Electrochemical Reaction", Kexue Tongbao, vol. 26, No. 5, pp. 401-405, (May, 1981), (Chinese and English).

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