Nanocomposite Ti-B-N coatings synthesized by reactive arc evaporation

Jörg Neidhardt, Zsolt Czigány, Bernhard Sartory, R. Tessadri, Michael O'Sullivan, Christian Mitterer

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

Nanocomposite Ti-B-N coatings have been prepared by reactive arc evaporation from Ti-B compound targets. The highly ionized flux of film-forming species was utilized to synthesize a promising nanocrystalline metastable supersaturated solid solution of boron in TiN at lower nitrogen fractions. The combined results from elastic recoil detection, X-ray photoelectron spectroscopy, X-ray diffraction, high-resolution transmission electron microscopy and selected area electron diffraction indicate that the additional nitrogen incorporated at higher partial pressures triggers the formation of a separate amorphous BN matrix phase surrounding the 6-8 nm sized face-centered cubic crystallites. A maximum in the hardness is obtained for the strained TiBN crystallites surrounded by a small fraction of boron synthesized at a nitrogen fraction of 0.1, while the formation of the amorphous BN phase leads to lower values.

Original languageEnglish
Pages (from-to)4193-4200
Number of pages8
JournalActa Materialia
Volume54
Issue number16
DOIs
Publication statusPublished - Sep 1 2006

Keywords

  • Nanocomposite
  • Reactive arc evaporation
  • TEM
  • Thin films
  • XPS

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Polymers and Plastics
  • Metals and Alloys

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  • Cite this

    Neidhardt, J., Czigány, Z., Sartory, B., Tessadri, R., O'Sullivan, M., & Mitterer, C. (2006). Nanocomposite Ti-B-N coatings synthesized by reactive arc evaporation. Acta Materialia, 54(16), 4193-4200. https://doi.org/10.1016/j.actamat.2006.05.014