Tantalum powder and method of making

Details Tantalum powder and method of making Tantalum powder and method of making

1985-01-17

1987-02-24

Brody, Christopher W.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 05BB, 75251, B22F 924

Patent

active

046455337

ABSTRACT:
The dielectric characteristic and resistance against the dielectric characteristic deterioration of tantalum powder for use in a solid electrolyte capacitor are improved by incorporating phosphorus and boron dopant sources into tantalum material at the reducing step of K.sub.2 TaF.sub.7 or by incorporating one of the two dopant sources at the reducing step and the other dopant source at the heat-treating step.

REFERENCES:
patent: 3825802 (1974-07-01), Kumagai et al.
patent: 4009007 (1977-02-01), Fry
patent: 4356028 (1982-10-01), Bates

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