Tungsten powder, anode body for capacitors, and electrolytic capacitor

摘要

A tungsten powder having tungsten silicide such as W5Si3 on the surface of the particles and having a silicon content of 0.05 to 7 mass %; an anode body for capacitors; an electrolytic capacitor; a method for producing the tungsten powder; and a method for producing the anode body for capacitors. The tungsten powder has an average primary particle diameter of 0.1 to 1 μm, wherein tungsten silicide is localized within 50 nm from the particle surface. Further, the tungsten powder contains at least one member selected from tungsten nitride, tungsten carbide and tungsten boride on a part of the particle surface.

主权项

1. A tungsten powder having tungsten particles comprising tungsten silicide on the surface of the particles, wherein the silicon content of the particles is 0.05 to 7 mass %.