Engineered nanocrystallites for enhanced performance of ceramic coatings by ion beam assisted deposition

F. Namavar, J. Haupt, E. Tobin, H. Karimy, J. Trogolo, P. Colter, M. Yoganathan, C. Jollimore, R. Bricault, J. P. Hirvonen, R. Ayer

Research output: Contribution to journalConference article

Abstract

Ion beam assisted deposition (IBAD) was used to deposit ceramic and metallic films at temperatures below 150°C with nanocrystalline grain size. By combining chromium evaporation with nitrogen beam bombardment, hard, adherent CrN films without any porosity have been produced at low temperatures with a N/Cr arrival ratio of about 1. The grain size is typically smaller than 100angstrom and hardness is typically higher than 25 GPa. Mechanical properties of CrN are greatly influenced by impurities, as well as by surface conditioning of the substrate.

Original languageEnglish (US)
Pages (from-to)697-708
Number of pages12
JournalMaterials Research Society Symposium - Proceedings
Volume438
DOIs
StatePublished - 1996
EventProceedings of the 1996 MRS Fall Meeting - Boston, MA, USA
Duration: Dec 2 1996Dec 6 1996

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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