Coatings structures

Influance of the Si contant on the coating microstructure

 

Fractography AlCrN coating

Fractography, AlCrN/SiN coating Fractography AlCrN/SiN coating

 

 

  • Si addition changes microstructure from columnar to isotropic
  • Effect analogous to the Ti-based system
  • In TiAlN/SiN less Si is needed to reach glassy structure

 

Fractography, AlTiN/Sin Coating