发明授权
- 专利标题： Powdered tantalum, niobium, production process thereof and porous sintered body and solid electrolytic capacitor using the powdered tantalum or niobium
- 专利标题（中）： 粉末钽，铌，其制造方法和使用钽粉或钽粉末的多孔烧结体和固体电解电容器
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申请号： US10431653申请日： 2003-05-07
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公开(公告)号： US06788525B2公开(公告)日： 2004-09-07
- 发明人: Ryosuke O. Suzuki , Rieko Ishii , Tadao Nishiyama , Hitoshi Iijima
- 申请人： Ryosuke O. Suzuki , Rieko Ishii , Tadao Nishiyama , Hitoshi Iijima
- 优先权： JP11-326135 19991116; JP11-355055 19991214
- 主分类号： H01G9045
- IPC分类号： H01G9045
摘要：
A tantalum or niobium powder that can provide a porous sintered tantalum or niobium body having a large surface area and involving a lower risk of failure to form a solid electrolyte film, where a material serving as a tantalum or niobium ion source is dissolved in a molten salt, upon which a reducing agent is allowed to act, resulting in reduction to the metal state of the tantalum or niobium ions dissolved in the molten salt, to thereby obtain a tantalum or niobium powder including aggregated columnar particles. A tantalum or niobium powder contains radially aggregated particles formed by a plurality of columnar particles aggregated radially.
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