Capacitor grade tantalum powder

Details Capacitor grade tantalum powder Capacitor grade tantalum powder

1988-11-01

1990-09-18

Roy, Upendra

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

361529, 420427, B22F 924

Patent

active

049575414

ABSTRACT:
Tantalum powders of capacitor grade are provided, containing interacting silicon and phosphorous dopants to effect low D.C. leakage of electrolytic capacitors having anodes made from such powders, with anodic formation at low temperatures (40.degree.-60.degree. C.), consistent with high capacitance.

REFERENCES:
patent: 3825802 (1974-07-01), Kumagai et al.
patent: 4009007 (1977-02-01), Fry
patent: 4041359 (1977-08-01), Mizushima et al.
patent: 4379128 (1983-04-01), Haehn et al.
patent: 4483819 (1984-11-01), Albrecht et al.
patent: 4537641 (1985-08-01), Albrecht et al.
patent: 4645533 (1987-02-01), Izumi

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