Rev.Adv.Mater.Sci.(RAMS)
No 5, Vol. 5, 2003, pages 420-424

ENHANCED APPROACH TO SYNTHESIZE CARBON ALLOTROPES BY ARC PLASMA

R. Dubrovsky, V. Bezmelnitsyn

Surface Engineering Laboratory, Mechanical Engineering Department,
New Jersey Institute of Technology, University Heights, Newark, NJ 07102, USA

Abstract

This work allows production of carbon vapor in plasma from graphite electrodes under influence of a buffer gas flow supplied into plasma zone. Carbon vapor is evacuated from hot plasma zone by efficiently organized radial exhaust gas stream. Study of influence of inert gas flow dynamics supplied to hot plasma zone during fullerenes synthesis was performed and relationship between different applied power, diameters of used electrodes, fullerenes productivity and yield were established. It was defined that critical temperature plays important role in production of good carbon vapor suitable for fullerenes synthesis. Proposed method allows significantly increase fullerenes productivity.

full paper (pdf, 170 Kb)