Flaked tantalum powder and method of using same flaked tantalum

Details Flaked tantalum powder and method of using same flaked tantalum Flaked tantalum powder and method of using same flaked tantalum

1995-04-17

1996-12-03

Wyszomierski, George

Specialized metallurgical processes, compositions for use therei

Compositions

Loose particulate mixture containing metal particles

204292, 361529, 420427, C22C 2702

Patent

active

055803679

ABSTRACT:
An improved flaked tantalum powder and process for making the flaked powder are disclosed. The powder is characterized by having a Scott density greater than about 13 g/in.sup.3 and preferably at least about 90% of the flake particles having no dimension greater than about 55 micrometers. Agglomerates of the flaked tantalum powder, provide improved flowability, green strength and pressing characteristics compared to conventional flaked tantalum powders. The improved flaked tantalum powder can be made by preparing a flaked tantalum and then reducing the flake size until a Scott density greater than about 18 g/in.sup.3 is achieved. The invention also provides pellets and capacitors prepared from the above-described flaked tantalum powder.

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