Reactive synthesis: A promising route for the in-situ formation of nanosized reinforcements in metal matrix composites

N. Samer, J. Andrieux, B. Gardiola, S. Gourdet, O. Martin, H. Kurita, L. Chaffron, O. Dezellus

Research output: Contribution to conferencePaperpeer-review

Abstract

The present paper describes a new synthesis route for particulate reinforcement metal matrix composites. The process consists in the chemical reaction at high temperature between precursor materials to form in-situ both the matrix and the particles of the reinforcing phase. The main criteria that have to considered to determine if a given matrix/reinforcement couple can be obtained by this route are illustrated on specific examples. The main advantages are the quality of the matrix/reinforcement interface that is formed in-situ by a nucleation/growth mechanism (free of oxide layers) the homogeneity of the microstructure without any clustering effect, even for high volume fraction of reinforcement. Moreover, nano-sized particles of reinforcement with a mean that is about 30 nm can be obtained without any handling of nano-sized powders. The interest of this route is also illustrate by mechanical properties characterize by high strength values associated with a failure elongation of 6%.

Original languageEnglish
Publication statusPublished - 2015
Externally publishedYes
Event20th International Conference on Composite Materials, ICCM 2015 - Copenhagen, Denmark
Duration: 2015 Jul 192015 Jul 24

Other

Other20th International Conference on Composite Materials, ICCM 2015
CountryDenmark
CityCopenhagen
Period15/7/1915/7/24

Keywords

  • In-situ synthesis
  • Nanoparticles
  • Particulate reinforced metal matrix composites
  • Reactive synthesis

ASJC Scopus subject areas

  • Engineering(all)
  • Ceramics and Composites

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