• Article  

      Characterisation and tribological evaluation of nitrogen-containing molybdenum-copper PVD metallic nanocomposite films 

      Joseph, M. C.; Tsotsos, C.; Baker, M. A.; Kench, P. J.; Rebholz, Claus; Matthews, A.; Leyland, A. (2005)
      This paper reports on the structural, mechanical and tribological properties of molybdenum-copper nanocomposite films 'doped' with small amounts of nitrogen, which contain either no nitride phase (i.e. the nitrogen is held ...
    • Article  

      Correlation of elastic modulus, hardness and density for sputtered TiAlBN thin films 

      Rebholz, Claus; Leyland, A.; Matthews, A.; Charitidis, C.; Logothetidis, S.; Schneider, D. (2006)
      This paper describes the correlation between the elastic modulus, hardness and density of mainly X-ray amorphous TiAlxByNz (0.29 ≤ x ≤ 1.32
    • Article  

      The effect of boron additions on the tribological behaviour of TiN coatings produced by electron-beam evaporative PVD 

      Rebholz, Claus; Leyland, A.; Larour, P.; Charitidis, C.; Logothetidis, S.; Matthews, A. (1999)
      TiN coatings containing small amounts of boron were synthesized by electron beam evaporating a Ti-B alloy material from a single crucible source into a plasma comprising Ar or an Ar/N2 mixture at a substrate temperature ...
    • Conference Object  

      Effect of Cu content on the tribological performance of Cr-N coatings at high temperatures (840°C) 

      Polychronopoulou, K.; Rebholz, Claus; Demas, N. G.; Polycarpou, A. A.; Gibson, P. N. (Affiliation: Department of Mechanical and Manufacturing Eng., University of Cyprus, Nicosia, CyprusAffiliation: Department of Mechanical Science and Eng., University of Illinois at Urbana-Champaign, Urbana, IL, United StatesAffiliation: Institute for Health and Consumer Protection, Joint Res. Centre of the European Commission, Ispra (VA), ItalyCorrespondence Address: Polychronopoulou, K.Department of Mechanical and Manufacturing Eng., University of Cyprus, Nicosia, Cyprus, 2010)
      Cr-N and Cu-Cr-N coatings with Cu content between 3-65 at.%, Cu/Cr ratios in the 0.04-4.5 range and 21-27 at.% N, synthesized by twin e-beam Physical Vapor Deposition (EBPVD) at 450°C, were investigated. Using X-ray ...
    • Article  

      Electron spectroscopic studies of nanocomposite PVD TiAlBN coatings 

      Baker, M. A.; Rebholz, Claus; Leyland, A.; Matthews, A. (2002)
      A range of TiAlBN coatings have been deposited by electron beam evaporation and the optimised composition exhibits a 150% improvement over single phase TiAlN coatings in drilling tests. The coatings have been analysed by ...
    • Article  

      Evaluating the microstructure and performance of nanocomposite PVD TiAlBN coatings 

      Baker, M. A.; Klose, S.; Rebholz, Claus; Leyland, A.; Matthews, A. (2002)
      Physical vapour deposition (PVD) TiAlBN coatings can exhibit excellent wear resistance, with optimised coating compositions demonstrating a 150% increase in lifetime compared to standard TiAlN coatings in wet-cutting drill ...
    • Article  

      Nanostructural studies of PVD TiAlB coatings 

      Monclus, M. A.; Baker, M. A.; Rebholz, Claus; Stolojan, V.; Gibson, P. N.; Leyland, A.; Matthews, A. (2006)
      TiAlB coatings with different compositions were deposited by co-sputtering from TiAl and TiB2 targets onto AISI316 stainless steel substrates at a temperature of 170 °C. The stoichiometry and nanostructure have been studied ...
    • Article  

      Plasma-based surface engineering processes for wear and corrosion protection 

      Matthews, A.; Leyland, A.; Dorn, B.; Stevenson, P. R.; Bin-Sudin, M.; Rebholz, Claus; Voevodin, A.; Schneider, J. (1995)
      Vacuum plasma-based coating and treatment methods have considerable potential for reducing wear and corrosion. However, they have not been widely applied to engineering components other than tools such as those used in ...