Flaked tantalum powder

Details Flaked tantalum powder Flaked tantalum powder

1991-07-31

1993-05-18

Wyszomierski, George

Specialized metallurgical processes, compositions for use therei

Compositions

Loose particulate mixture containing metal particles

420427, 361529, C22C 2702

Patent

active

052117413

ABSTRACT:
The invention relates to flaked tantalum powders suitable for use in electrodes and capacitors. The tantalum powders have a mean particle size of about 2 to 55 micrometers, a BET surface area greater than about 0.5 m.sup.2 /g, and an aspect ratio between about 2 and 50. The powders are in the form of fractured flakes, which contain substantially no tapering of their peripheral edges.

REFERENCES:
patent: 3647415 (1972-03-01), Yano et al.
patent: 4017302 (1977-04-01), Bates et al.
patent: 4141719 (1979-02-01), Hakko
patent: 4740238 (1988-04-01), Schiele
patent: 4940490 (1990-07-01), Fife et al.
patent: 4954169 (1990-09-01), Behrens
patent: 5082491 (1992-01-01), Rerat

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