Tantalum powder with improved capacitor anode processing charact

Details Tantalum powder with improved capacitor anode processing charact Tantalum powder with improved capacitor anode processing charact

1990-09-06

1992-01-21

Roy, Upendra

Specialized metallurgical processes, compositions for use therei

Compositions

Loose particulate mixture containing metal particles

420427, B22F 900

Patent

active

050824910

ABSTRACT:
Ingot-derived and sodium-reduced agglomerated tantalum powders having improved flow characteristics and lead pull-out strength that find particular utility in manufacture of anodes for capacitors. Powder size distribution is in the range of -60 to +400 mesh, preferably -60 to +250 mesh, containing less than 5 wt % powder above the upper and below the lower range limits.

REFERENCES:
patent: 4017302 (1977-04-01), Bates et al.
patent: 4067736 (1978-01-01), Vartanian
patent: 4141719 (1979-02-01), Hakko
patent: 4441927 (1984-04-01), Getz et al.
patent: 4555268 (1985-11-01), Getz
patent: 4740238 (1988-04-01), Schiele
patent: 4957541 (1990-09-01), Tripp et al.

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