| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5359947 | Applied Surface Science | 2014 | 5 Pages |
Abstract
The temporal evolution of the surface chemistry of cubic TiAlN at 1Â ÃÂ 10â3Â mPa oxygen partial pressure and 300Â K was analysed by means of X-ray photoelectron spectroscopy and by ab initio molecular dynamics simulations. Both the experimental and theoretical data imply that Ti and not Al determines the oxygen chemisorption process. Dissociative adsorption of oxygen is followed by upward movements of Ti, generating vacancies in the TiAlN interface and the formation of TiOTi bridges with Ti2O3-like bonding passivating the surface.
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Christian Kunze, Denis Music, Moritz to Baben, Jochen M. Schneider, Guido Grundmeier,