Some recent developments in mechanical activation and mechanosynthesis

Authors:
  • FBFrédéric Bernard
    Frédéric Bernard
  • JNJean-Claude Niepce
    Jean-Claude Niepce
  • FCFrédéric Charlot
    Frédéric Charlot
  • CGChristophe Gras
    Christophe Gras
  • GCGérard Le Caër
    Gérard Le Caër
  • JGJean-Louis Guichard
    Jean-Louis Guichard
  • PDPierre Delcroix
    Pierre Delcroix
  • AMAlain Mocellin
    Alain Mocellin
  • OTOlivier Tillement
    Olivier Tillement
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Abstract
After outlining the general characteristics of high-energy ball-milling, mechanochemical synthesis is argued to be an attractive method for the synthesis and transformation of materials. Phase transformations induced by milling, annealing of mechanically activated iron silicides, mechanically activated self-heat sustaining reactions (MASHS), for instance of FeAl, are first discussed. The route, which starts from mechanosynthesized powders to reach consolidated alumina-(Fe,Ti) composites, yields materials whose original morphologies and some mechanical properties are then described.