Formation of SiC nanoparticles in an atmospheric microwave plasma

Author:

Vennekamp Martin,Bauer Ingolf,Groh Matthias,Sperling Evgeni,Ueberlein Susanne,Myndyk Maksym,Mäder Gerrit,Kaskel Stefan

Abstract

We describe the formation of SiC nanopowder using an atmospheric argon microwave plasma with tetramethylsilane (TMS) as precursor. The impact of several process conditions on the particle size of the product is experimentally investigated. Particles with sizes ranging from 7 nm to about 20 nm according to BET and XRD measurements are produced. The dependency of the particle size on the process parameters is evaluated statistically and explained with growth-rate equations derived from the theory of Ostwald ripening. The results show that the particle size is mainly influenced by the concentration of the precursor material in the plasma.

Publisher

Beilstein Institut

Subject

Electrical and Electronic Engineering,General Physics and Astronomy,General Materials Science

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