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Sputtered tungsten-based ternary and quaternary layers for nanocrystalline diamond deposition

Article dans une revue avec comité de lecture
Auteur
WALOCK, Michael J.
20094 University of Alabama [Tuscaloosa] [UA]
RAHIL, Issam
ZOU, Yujiao
20094 University of Alabama [Tuscaloosa] [UA]
IMHOFF, Luc
CATLEDGE, Shane Aaron
20094 University of Alabama [Tuscaloosa] [UA]
STANISHEVSKY, Andrei
20094 University of Alabama [Tuscaloosa] [UA]
NOUVEAU, Corinne
127742 Laboratoire Bourguignon des Matériaux et Procédés [LABOMAP]

URI
http://hdl.handle.net/10985/7992
DOI
10.1166/jnn.2012.4935
Date
2012
Journal
Journal of Nanoscience and Nanotechnology

Résumé

Many of today’s demanding applications require thin-film coatings with high hardness, toughness, and thermal stability. In many cases, coating thickness in the range 2–20 m and low surface roughness are required. Diamond films meet many of the stated requirements, but their crystalline nature leads to a high surface roughness. Nanocrystalline diamond offers a smoother surface, but significant surface modification of the substrate is necessary for successful nanocrystalline diamond deposition and adhesion. A hybrid hard and tough material may be required for either the desired applications, or as a basis for nanocrystalline diamond film growth. One possibility is a composite system based on carbides or nitrides. Many binary carbides and nitrides offer one or more mentioned properties. By combining these binary compounds in a ternary or quaternary nanocrystalline system, we can tailor the material for a desired combination of properties. Here, we describe the results on the structural and mechanical properties of the coating systems composed of tungsten chromium-carbide and/or nitride. These WC-Cr-(N) coatings are deposited using magnetron sputtering. The growth of adherent nanocrystalline diamond films by microwave plasma chemical vapor deposition has been demonstrated on these coatings. The WC-Cr-(N) and WC-Cr-(N)-NCD coatings are characterized with atomic force microscopy and SEM, X-ray diffraction, X-ray photoelectron spectroscopy, Raman spectroscopy, and nanoindentation.

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Documents liés

Visualiser des documents liés par titre, auteur, créateur et sujet.

  • Growth of WC-Cr-N and WC-Al-N coatings in a RF-magnetron sputtering process 
    Chapitre d'ouvrage scientifique
    STANISHEVSKY, Andrei; WALOCK, Michael J.; ZOU, Yujiao; IMHOFF, Luc; ZAIRI, Amel; NOUVEAU, Corinne (Elsevier, 2012)
    Tungsten carbide-based coatings have been used in a wide variety of industrial applications such as high speed cutting tools, extrusion dies, drills, aerospace industries, and more. A few reports on ternary and quaternary ...
  • Thermal Stability and Mechanical Properties of Sputtered Chromium-Molybdenum-Nitride (CrMoN) Coatings 
    Article dans une revue avec comité de lecture
    ZOU, Yujiao; WALOCK, Michael J.; CATLEDGE, Shane Aaron; STANISHEVSKY, Andrei; NOUVEAU, Corinne (2009)
    Purpose: The purpose of paper is to determinate thermal stability and mechanical properties of sputtered chromium-molybdenum-nitride (CrMoN) coatings. Design/methodology/approach: We have deposited 1.8 m-thick ternary ...
  • W-Cr-C-N Nanocomposite Thin-Film Coatings via Reactive Magnetron Sputtering 
    Communication avec acte
    WALOCK, Michael J.; ZOU, Yujiao; LAGADRILLERE, Denis; STANISHEVSKY, Andrei; NOUVEAU, Corinne (Society of Vacuum Coaters, 2011)
    While binary tungsten carbide can form smooth, hard films, these suffer from low fracture toughness. Tungsten nitride films are frequently harder, but are more brittle. Chromium nitride has excellent wear and oxidation ...
  • Physical and Mechanical Properties of CrAlN and CrSiN Ternary Systems for Wood Machining Applications 
    Article dans une revue avec comité de lecture
    BENLATRECHE, Yacine; AKNOUCHE, Hamid; IMHOFF, Luc; MARTIN, Nicolas; GAVOILLE, Joseph; ROUSSELOT, Christophe; RAUCH, Jean-Yves; PILLOUD, David; NOUVEAU, Corinne (Wiley-VCH Verlag, 2009)
    Nowadays, almost all the cutting tools in metal machining are protected with a surface treatment. Nevertheless, this is not the case in woodmachining where no tools are protected, except by thermal treatments, and so they ...
  • Etude de systèmes ternaires à base de Cr et N pour applications mécaniques sur outils de coupe destinés à la transformation du bois 
    Communication avec acte
    LABIDI, Chafik; IMHOFF, Luc; MARTIN, Nicolas; GAVOILLE, Joseph; PILLOUD, David; ROUSSELOT, Christophe; MOREL, Anne; NOUVEAU, Corinne (Société de Chimie Industrielle, 2006)
    Le présent travail se propose d'étudier les propriétés physico-chimiques et mécaniques de revêtements PVD nanocristallins ou nanocomposites (CrAlN, CrSiN) obtenus sur différents substrats et destinés à la première et seconde ...

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