Combustion, Explosion and Shock Waves

, Volume 42, Issue 2, pp 177–184 | Cite as

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
Article

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.

Key words

aluminum powders non-oxide coatings oxidation ageing nitridation air 

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Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  • A. A. Gromov
    • 1
  • A. P. Il’in
    • 1
  • U. Foerter-Barth
    • 2
  • U. Teipel
    • 2
  1. 1.Tomsk Polytechnic UniversityTomsk
  2. 2.Fraunhofer Institute of Chemical TechnologyPfinztalGermany

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