Oxidation of nanoscale TiAIN/VN multilayer coatings

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ZHOU, Z., RAINFORTH, W. M., HOVSEPIAN, P. E. and MUNZ, W. D. (2004). Oxidation of nanoscale TiAIN/VN multilayer coatings. In: MCVITIE, S. and MCCOMB, D., (eds.) Electron Microscopy and Analysis 2003. Institute of Physics Conference Series (179). Institute of Physics, 413-416. [Book Section]

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Abstract

The oxidation behaviour of nanoscale multilayer PVD TiAlN/VN coatings heat-treated in air 600degreesC for 30minutes were studied using TEM. A duplex surface oxide was found, consisting in a number of phases, with an outer layer rich in V2O5, AlVO4 and an inner layer containing V2O5 and VO2 and possibly Al2TiO5 with TiO2 extending across both layers. Oxidation occurred preferentially along columnar grain boundaries, but the oxidation front did not follow the multilayer structure. The oxidation mechanisms are discussed.

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Additional Information:

Institute-of-Physics-Electron-Microscopy and Analysis-Group Conference (EMAG 2003), SEP 03-05, 2003 Oxford, ENGLAND

Research Institute, Centre or Group - Does NOT include content added after October 2018:

Materials and Engineering Research Institute > Advanced Coatings and Composites Research Centre > Nanotechnology Centre for PVD Research

Page Range:

413-416

ISBN:

0951-32480-7503-0967-9

Identifiers

ORCID:

https://orcid.org/0000-0002-1047-0407