Niobium powder, sintered body and capacitor using the body

摘要

A niobium powder comprising at least one element selected from the group consisting of boron, gallium, indium and thallium; a sintered body of the niobium powder; a capacitor comprising a sintered body as one electrode, a dielectric material formed on the surface of the sintered body, and counter electrode provided on the dielectric material; an electronic circuit using said capacitor and an electronic instrument using said capacitor.