Effect of the passivating coating type, particle size, and storage time on oxidation and nitridation of aluminum powders

A. A. Gromov, A. P. Il'In, U. Foerter-Barth, U. Teipel

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

Processes of nonisothermal oxidation, nitridation, and ageing of aluminum powders with different particle sizes (nano-sized powder, ASD-1 powder, and PAP-2 powder) are considered. Application of non-oxide coatings onto particles of aluminum nanopowders reduces their thermal stability. Owing to scale-shaped particles, the PAP-2 powder after long-time storage preserves high activity of oxidation and nitridation, which is commensurable with that of the aluminum nanopowder. The activity of the coarse ASD-1 powder consisting of spherical particles in terms of oxidation and nitridation is low and only slightly changes during ageing.

Original languageEnglish
Pages (from-to)177-184
Number of pages8
JournalCombustion, Explosion and Shock Waves
Volume42
Issue number2
DOIs
Publication statusPublished - 1 Mar 2006

Keywords

  • Ageing
  • Air
  • Aluminum powders
  • Nitridation
  • Non-oxide coatings
  • Oxidation

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Physics and Astronomy(all)

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