Title: Structure, physical properties and multifractal characteristics of the PVD and CVD coatings deposition onto the Al₂O₃+TiC ceramics

Authors: Waldemar Kwasny, Michal J. Wozniak, Jaroslaw Mikula, Leszek A. Dobrzanski

Addresses: Institute of Engineering Materials and Biomaterials, Silesian University of Technology, Konarskiego Street 18a, Gliwice 44-100, Poland. ' Faculty of Materials Science and Engineering, Warsaw University of Technology, ul. Woloska 141, Warsaw 02-507, Poland. ' Institute of Engineering Materials and Biomaterials, Silesian University of Technology, Konarskiego Street 18a, Gliwice 44-100, Poland. ' Institute of Engineering Materials and Biomaterials, Silesian University of Technology, Konarskiego Street 18a, Gliwice 44-100, Poland

Abstract: The paper presents investigation results of the Al₂O₃+TiC tool ceramics uncoated and coated with the TiN and TiN+multiTiAlSiN+TiN coatings deposited in the PVD process, as well as with the TiN+Al₂O₃ coating obtained in the CVD process. Values of the surface fractal dimension and the multifractal spectra were determined using the projective covering method based on data obtained on the atomic force microscope AFM. The paper presents results of the phase composition investigations, tests of mechanical properties, including thickness, hardness and roughness tests, as well as of the examinations of structure and topography of the surface using scanning microscopy.[Received 14 November 2005; Accepted 5 January 2007]

Keywords: analysis; modelling; computational materials science; PVD coatings; multifractal geometry; atomic force microscopy; AFM; CVD coatings; tool ceramics; phase composition; mechanical properties; thickness tests; hardness tests; roughness tests; surface structure; surface topography.

DOI: 10.1504/IJCMSSE.2007.013840

International Journal of Computational Materials Science and Surface Engineering, 2007 Vol.1 No.1, pp.97 - 113

Published online: 30 May 2007 *

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