Anode Sheath Switching in a Carbon Nanotube Arc Plasma.

Fetterman, A. ; Raitses, Y. ; Keidar, M.

Technical Information Center Oak Ridge Tennessee

关键词: Carbon nanotubes;    Arc plasmas;    Anodes;    Ablation;    Production;   

RP-ID  :  DE2009960288

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 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.