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CEMS of nitride coatings in agressive environments |
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| Authors: | D Hanžel AC Agudelo JR Gancedo M Lakatos-Varsanyi JF Marco |
| Institution: | 1. J. Stefan Institute, University of Ljubljana, P.O. Box 3000, SLO-1001, Ljubljana, Slovenia 2. Instituto de Quimica-Fisica “Rocasolano”, CSIC, Serrano 119, 28006, Madrid, Spain 3. Department of Physical Chemistry, E?tv?s University, P.O.B. 32, H-1518, Budapest, Hungary |
| Abstract: | The corrosion properties of single layered TiN and CrN films have been compared to bi-layered and multi-layered Ti/TiN films. XPS has showed that in humid SO2 atmosphere the best corrosion properties have been achieved by a multi-layered Ti/TiN coating. Cyclic voltammetry in acetate buffer has been applied to measure the porousity and corrosion resistance of coatings. The best results have been achieved by multi-layered Ti/TiN and CrN films. Conversion electron Mössbauer spectroscopy has been used to study the changes in the interface Fe/TiN during thermal treatment in UHV. It has been shown that the amount of iron nitrides in the interface increases with increasing temperature. |
| Keywords: | reactive sputtering iron chromium titanium TiN CrN nitrides oxidation M?ssbauer spectroscopy CEMS XPS |
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