Anode Sheath Switching in a Carbon Nanotube Arc Plasma

[摘要] The anode ablation rate is investigated as a function of anode diameter for a carbon nanotube arc plasma. It is found that anomalously high ablation occurs for small anode diameters. This result is explained by the formation of a positive anode sheath. The increased ablation rate due to this positive anode sheath could imply greater production rate for carbon nanotubes.

[发布日期] 2008-04-08

[学科分类] 原子、分子光学和等离子物理

[关键词] ABLATION;ANODES;CARBON;NANOTUBES;PLASMA;PRODUCTION Arc Plasma