The scandium oxide of nano scandium oxide doped tungsten powder is evenly distributed and has small particles. It can produce excellent performance of the scandium tungsten matrix, improve the anti-ion bombardment performance, and help to improve cathode emission uniformity.
Preparation
Nano scandium oxide doped tungsten powder can be liquid-solid doping method by the decomposition of the reduction process. Scandium oxide evenly covered the surface of tungsten particles, pinning the role of inhibiting grain growth.
Applications
Nano scandium oxide doped tungsten powder is the raw material for the preparation of scandium tungsten matrix. Scandium oxide evenly covers the surface of tungsten particles, pinning the role of inhibiting grain growth.
Among a lot of hot electron emitters, scandium diffusion cathodes have the highest emission levels and are the only cathodes in the hot cathode that are likely to meet the current densities required of high power microwave devices.
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