Production of carbon-coated aluminium nanopowders in pulsed microarc discharge

Document Type

Article

Publication Date

10-1-2002

Abstract

A new technique of metal nanopowder production and in situ coating using a microarc discharge is proposed. The feasibility of this method is demonstrated and preliminary results are presented. The microarc discharge was operated at 1 atm in both pure Ar and natural gas environments. Respectively, aluminium nanoparticles without and with ∼ 1 nm thick carbon surface coating were obtained. The morphology and structures of the nanoparticles were studied using a transmission electron microscope (TEM), and size distribution of the coated particles was determined from the TEM image analyses. It was found that the sizes of the produced carbon-coated aluminium particles were well described by a lognormal distribution with the geometrical mean size of 22.7 nm and standard deviation of 1.35.

Identifier

0036801112 (Scopus)

Publication Title

Nanotechnology

External Full Text Location

https://doi.org/10.1088/0957-4484/13/5/320

ISSN

09574484

First Page

638

Last Page

643

Issue

5

Volume

13

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