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1 Journal of Achievements in Materials and Manufacturing Engineering

1 2009

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Influence of the PVD and CVD technologies on the residual macrostresses and functional properties of the coated tool ceramics

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Dobrzański L. A. , Skrzypek S. , Pakuła D. , Mikuła J. , Křiž A.

Journal of Achievements in Materials and Manufacturing Engineering

2009

tom Vol. 35, nr 2

162-168

Purpose: The goal of this work is to compare the macro-stresses as well as mechanical and functional properties of the PVD and CVD coatings deposited on oxide and nitride ceramics tool. Design/methodology/approach: In the paper the residual macro-stresses of PVD and CVD coatings deposited on tool ceramics substrates, measured with the application of the grazing angle X-ray diffraction geometry are compared in relation to the fundamental mechanical properties like hardness and adhesion. Findings: Basing on the tribological test made by the use of the „pin-on-disk” method, the influence of the residual macro-stresses to wear resistance is being investigated. Practical implications: The process of covering tools with the thin wear resistant PVD and CVD coatings is currently the most commonly method used to extend their life. Investigations of those coatings determining their mechanical properties, chemical composition, and structure, enable to pick out the optimum coatings for given industrial applications. Originality/value: New X-ray diffraction g-sin2ř method based on glancing angle X-ray beam geometry (GID), macro-stresses of the examined CVD and PVD coatings have been measured.