Title:
METHOD TO AGGLOMERATE METAL PARTICLES AND METAL PARTICLES HAVING IMPROVED PROPERTIES
Document Type and Number:
WIPO Patent Application WO1999061184
Kind Code:
A9
Abstract:
A method to agglomerate metal particles such as tantalum and niobium powders is described which includes combining a volatilizable or vaporizable liquid with the particles to form wet particles; compacting the wet particles; drying the compacted wet particles to form a cake; and heat treating the cake to form the agglomerated particles. Also described are agglomerated particles obtained by this method and further, particles, perferably tantalum or niobium powder, having a flow rate of at least about 65 mg/sec and/or an improved pore size distribution, and/or a higher Scott Density. Capacitors made from tantalum powder and niobium powder are also described.
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Inventors:
RAO PRASAD
Application Number:
PCT/US1999/011149
Publication Date:
April 13, 2000
Filing Date:
May 20, 1999
Export Citation:
Assignee:
CABOT CORP (US)
International Classes:
B22F1/148; B01J2/00; B22F9/04; C22C1/04; H01G9/04; H01G9/052; B22F1/12; (IPC1-7): B22F1/00; C22C1/04
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