Browsing by Author "Matthews, A."
Now showing items 1-20 of 28
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Active process control of reactive sputter deposition
Voevodin, A. A.; Stevenson, P.; Rebholz, Claus; Schneider, J. M.; Matthews, A. (1995)Control of the density, composition, ionisation rate and arrival energy of species is one of the main objectives of research in the development of reactive magnetron sputtering. The deposition of the latest generation of ...
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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 ...
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Comparative tribology studies of hard ceramic and composite metal-DLC coatings in sliding friction conditions
Voevodin, A. A.; Rebholz, Claus; Matthews, A. (1995)The design of anti-friction coatings able to perform well in different wear conditions without lubricants requires a combination of adequate hardness and toughness, good adhesion, a low friction coefficient and a low wear ...
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Composite DLC-metal/metal-carbide coatings produced by electron enhanced unbalanced magnetron sputtering
Rebholz, Claus; Ziegele, H.; Voevodin, A. A.; Schneider, J. M.; Matthews, A. (1997)Composite coatings consisting of metal containing diamond like carbons were produced by unbalanced magnetron sputtering in a closed field magnetic configuration. Targets of Pta and W were poisoned with acetylene during the ...
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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
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Deposition and characterisation of carbon-containing tungsten coatings prepared by reactive magnetron sputtering
Rebholz, Claus; Schneider, J. M.; Ziegele, H.; Rähle, B.; Leyland, A.; Matthews, A. (1998)Carbon-containing tungsten coatings were deposited by magnetron sputtering onto AISI 316 stainless steel substrates in Ar/C2H2 gas mixtures. Optical emission spectroscopy was used to control the C2H2 gas flow. The goal of ...
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Deposition and characterisation of TiAlBN coatings produced by direct electron-beam evaporation of Ti and Ti-Al-B-N material from a twin crucible source
Rebholz, Claus; Leyland, A.; Matthews, A. (1999)TiAlBN coatings were synthesised by evaporating Ti and hot isostatically pressed TiAl0.68B3.67N2.44 material from a twin crucible source in an Ar plasma at 450°C. A combination of optical emission spectroscopy and partial ...
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Deposition and characterization of nitrogen containing stainless steel coatings prepared by reactive magnetron sputtering
Schneider, J. M.; Rebholz, Claus; Voevodin, A. A.; Leyland, A.; Matthews, A. (1996)Nitrogen containing austenitic stainless steel coatings were deposited with nitrogen concentrations up to 14.1 at% using electron enhanced closed field unbalanced DC magnetron sputtering. The reactive gas flow was controlled ...
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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 ...
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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 ...
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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 ...
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Mechanical and tribological properties of hard aluminium-carbon multilayer films prepared by the Laser-Arc technique
Ziegele, H.; Rebholz, Claus; Scheibe, H. J.; Schultrich, B.; Matthews, A. (1998)The method of laser-induced vacuum arc (Laser-Arc) combines the good controllability of pulsed laser deposition with the high efficiency of a vacuum arc technique. One advantage of this technique is the reduction of droplets, ...
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Microstructural and morphological effects on the tribological properties of electron enhanced magnetron sputtered hard coatings
Schneider, J. M.; Voevodin, A. A.; Rebholz, Claus; Matthews, A. (1995)X-ray diffraction measurements and scanning electron microscopy studies on close to stoichiometric titanium carbonitride [TiCxN(1 _x)] and carbon containing tungsten coatings produced in an electron enhanced unbalanced ...
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Multilayer composite ceramic-metal-DLC coatings for sliding wear applications
Voevodin, A. A.; Schneider, J. M.; Rebholz, Claus; Matthews, A. (1996)The design of anti-friction coatings able to perform well in different wear conditions without lubricants requires a combination of adequate hardness and toughness, good adhesion, a low friction coefficient and a low wear ...
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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 ...
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The nanostructure, wear and corrosion performance of arc-evaporated CrBxNy nanocomposite coatings
Polychronopoulou, K.; Baker, M. A.; Rebholz, Claus; Neidhardt, J.; O'Sullivan, M.; Reiter, A. E.; Kanakis, K.; Leyland, A.; Matthews, A.; Mitterer, C. (2009)The composition, nanostructure, tribological and corrosion behaviour of reactive arc evaporated CrBxNy coatings have been studied and compared to CrN. The CrBxNy coatings were deposited on a commercial Oerlikon Balzers RCS ...
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Novel combustion synthesis of carbon foam‑aluminum fluoride nanocomposite materials
Kostoglou, N.; Gunduz, I. Emre; Isik, T.; Ortalan, V.; Constantinides, G.; Kontos, A. G.; Steriotis, T.; Ryzhkov, V.; Bousser, E.; Matthews, A.; Doumanidis, C. C.; Mitterer, C.; Rebholz, Claus (2018)The facile, rapid and bulk production of composite materials consisting of carbon nanostructures doped with metal-based compounds has been a significant challenge for various research areas where such types of materials ...
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Partially yttria-stabilized zirconia coatings produced under plasma-assisted EBPVD with bipolar pulsed bias and under electron bombardment-assisted positive bias conditions
Matthews, A.; Young, S. J.; Joseph, M.; Rebholz, Claus; Schneider, J. M.; Dowey, S. J. (1997)Previous research using radio frequency (rf) plasma-assisted electron beam (EB) PVD to deposit partially yttria-stabilized zirconia (PYSZ) thermal barrier coatings has shown the benefits of this method in terms of structure ...
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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 ...
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Structure, hardness and mechanical properties of magnetron-sputtered titanium-aluminium boride films
Rebholz, Claus; Leyland, A.; Schneider, J. M.; Voevodin, A. A.; Matthews, A. (1999)TiAlB films nominally 2 μm thick were produced by simultaneous sputtering from TiAl and TiB2 targets onto Si-(110) and AISI316 stainless steel substrate materials at a temperature of 170°C. The influence of different B/Al ...