Experimental investigation of the mechanical micro structural and thermal properties of thin CrAIN layers deposited by PVD technique for various aluminum percentages
Article dans une revue avec comité de lecture
The thin film of chromium nitride and their derivatives obtained by the filing process physical vapor deposition attract more and more attention from industry given their high resistance to wear. This quality of these coatings may be linked to their good mechanical and tribological properties. Several experimental investigations have led to the development of CrAlN (Chronium Aluminum Nitride) hard coatings by varying the aluminum target bias voltage, in preference to the traditional CrN coating. The present work is based on the investigation of physical and mechanical properties of CrAlN coating deposited on a silicon substrate and the effect of the aluminum proportion on their variation. The results demonstrate that variation in aluminum proportion alters the resulting columnar morphology, porosity and the thermal properties. The correlation between aluminum proportions in CrAlN coatings and his thermal properties revealed that the conductivity and the diffusivity are influenced primarily by size and shape distribution of the pores and secondarily by decrease of the stitch parameter dimension.
Showing items related by title, author, creator and subject.
Correlation between thermal properties and aluminum fractions in CrAlN layers deposited by PVD technique Article dans une revue avec comité de lectureTLILI, Brahim; MUSTAPHA, Nasri; NOUVEAU, Corinne; BENLATRECHE, Yacine; GUILLEMOT, Gildas; LAMBERTIN, Michel (Elsevier, 2010)The CrAlN coatings are a good alternative to conventional CrN coatings especially for high temperature oxidation-resistance applications. Different CrAlN coatings were deposited on silicon (100) by PVD (Physical vapor ...
Communication avec acteTLILI, Brahim; NOUVEAU, Corinne; BENLATRECHE, Yacine; MUSTAPHA, Nasri; LAMBERTIN, Michel (2009)In the present investigation, novel Cr/CrN, CrN/CrAlN and Cr/CrN/CrAlN multilayered coatings thin films have been developed by dual RF magnetron sputtering. They consist of superposing Cr, CrN and CrAlN layers of 50–500nm ...
Etude des propriétés microstructurales, mécaniques, thermiques et de la porosité des couches minces de CrAlN déposées par PVD sous différents pourcentages d’aluminium Communication avec acteTLILI, Brahim; BENLATRECHE, Yacine; GHRIB, Taher; NOUVEAU, Corinne (Société Tunisienne de Physique (S.T.P), 2008)Several experimental investigations have led to the development of CrAlN (Chrome Aluminum Nitride) hard coatings by varying the aluminum target bias voltage, in preference to the traditional CrN coating. The present work ...
Comparison of CrAlN layers obtained with one (CrAl) or two targets (Cr and Al) by magnetron sputtering Article dans une revue avec comité de lectureNOUVEAU, Corinne; TLILI, Brahim; AKNOUCHE, Hamid; BENLATRECHE, Yacine; PATEL, Bhavesh (Elsevier, 2012)The aim of this study is to compare the properties of CrAlN coatings obtained by magnetron sputtering with one (CrAl) or two targets (Cr and Al). The influence of parameters such as the target bias voltage, the working ...
Communication avec acteBRAYEK, A.; TLILI, Brahim; GHRIB, Taher; NOUVEAU, Corinne (EDP Sciences, 2012)In this work we present the technique of magnetron vapor deposition and the effect of several deposition parameters on the structural and morphological properties of prepared thin films. It was noted that the deposition ...