Materials for high brightness cathodes are evaluated by defining a figure of merit, which is based on the Richardson–Dushman equation. By calculating the figure of merit of borides, carbides, nitrides, and some refractory metals, it is concluded that carbides of transition metals such as TiC, ZrC, TaC, and HfC are promising for high brightness cathodes.
No takes yet. Share an insight, caveat, or question.
Zaima et al. (1984) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: