| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Baker, M. A.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2018The influence of SiO2 doping on the Ni/ZrO2 supported catalyst for hydrogen production through the glycerol steam reforming reactioncitations
- 2015The impact of substrate bias on a remote plasma sputter coating process for conformal coverage of trenches and 3D structurescitations
- 2009The nanostructure, wear and corrosion performance of arc-evaporated CrBxNy nanocomposite coatingscitations
- 2008Nanostructure, mechanical and tribological properties of reactive magnetron sputtered TiCx coatingscitations
- 2008Synthesis and characterization of Cr-B-N coatings deposited by reactive arc evaporationcitations
- 2007Hard and superhard TiAlBN coatings deposited by twin electron-beam evaporationcitations
- 2006Nanostructural studies of PVD TiAlB coatingscitations
- 2006Mechanical and tribological properties of CrTiCu(B,N) glassy-metal coatings deposited by reactive magnetron sputteringcitations
- 2005Investigation of the nanostructure and post-coat thermal treatment of wear-resistant PVD CrTiCuBN coatingscitations
- 2005Investigation of the nanostructure and wear properties of physical vapor deposited CrCuN nanocomposite coatingscitations
- 2005Characterisation and tribological evaluation of nitrogen-containing molybdenum-copper PVD metallic nanocomposite filmscitations
- 2003The nanostructure and mechanical properties of PVD CrCu (N) coatingscitations
- 2002Evaluating the microstructure and performance of nanocomposite PVD TiAlBN coatingscitations
- 2002Electron spectroscopic studies of nanocomposite PVD TiAlBN coatingscitations
Places of action
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article
Hard and superhard TiAlBN coatings deposited by twin electron-beam evaporation
Abstract
Superhard nanostructured coatings, prepared by plasma-assisted chemical vapour deposition (PACVD) and physical vapour deposition (PAPVD) techniques, such as vacuum arc evaporation and magnetron sputtering, are receiving increasing attention due to their potential applications for wear protection. In this study nanocomposite (TiAl)B x N y (0.09 ≤ x ≤ 1.35; 1.07 ≤ y ≤ 2.30) coatings, consisting of nanocrystalline (Ti,Al)N and amorphous BN, were deposited onto Si (100), AISI 316 stainless steel and AISI M2 tool steel substrates by co-evaporation of Ti and hot isostatically pressed (HIPped) Ti-Al-B-N material from a thermionically enhanced twin crucible electron-beam (EB) evaporation source in an Ar plasma at 450 °C. The coating stoichiometry, relative phase composition, nanostructure and mechanical properties were determined using X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD), in combination with nanoindentation measurements. Aluminium (∼ 10 at.% in coatings) was found to substitute for titanium in the cubic TiN based structure. (Ti,Al)B 0.14 N 1.12 and (Ti,Al)B 0.45 N 1.37 coatings with average (Ti,Al)N grain sizes of 5-6 nm and either ∼ 70, or ∼ 90, mol% (Ti,Al)N showed hardness and elastic modulus values of ∼ 40 and ∼ 340 GPa, respectively. (Ti,Al)B 0.14 N 1.12 coatings retained their 'as-deposited' mechanical properties for more than 90 months at room temperature in air, comparing results gathered from eight different nanoindentation systems. During vacuum annealing, all coatings examined exhibited structural stability to temperatures in excess of 900 °C, and revealed a moderate, but significant, increase in hardness. For (Ti,Al)B 0.14 N 1.12 coatings the hardness increased from ∼ 40 to ∼ 45 GPa.