Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1500308 | Scripta Materialia | 2010 | 4 Pages |
Abstract
Ab initio calculations are employed to demonstrate a strong pressure dependence of the maximum AlN mole fraction preserving the cubic phase in Ti1−xAlxN and Cr1−xAlxN hard coatings before transforming to the wurtzite structure. Under a compression of 4 GPa an increase by ∼0.1 AlN mole fraction is obtained for both systems. Consequently, stress-related effects cannot be neglected in the discussion of the wide spread of experimentally obtained stability ranges.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
David Holec, Florian Rovere, Paul H. Mayrhofer, Péter B. Barna,