NIOBIUM POWDER FOR CAPACITOR, SINTERED COMPACT USING THE SAME AND CAPACITOR USING THE COMPACT

摘要

PROBLEM TO BE SOLVED: To provide a niobium sintered compact, containing antimony for a capacitor exhibiting a small relative leakage current, niobium powder containing antimony used for it and a capacitor which uses the powder. SOLUTION: Niobium powder, containing antimony which preferably has an antimony content of 0.1-10 mol% and whose mean particle diameter is preferably 0.2-5 μm, is used. The sintered compact and the capacitor are made up using the niobium powder containing antimony.