Production of carbon-coated aluminium nanopowders in pulsed microarc discharge

Alexandre Ermoline, Mirko Schoenitz, Edward Dreizin, Nan Yao

Research output: Contribution to journalArticle

41 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)638-643
Number of pages6
JournalNanotechnology
Volume13
Issue number5
DOIs
StatePublished - Oct 2002

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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