1. Faculty of Mechanical Engineering; Brno University of Technology; Technická 2 CZ-61669 Brno Czech Republic
2. Central European Institute of Technology; Brno University of Technology; Technická 3058/10 CZ-61600 Brno Czech Republic
3. Erich Schmid Institute of Materials Science; Austrian Academy of Sciences; Jahnstr. 12 A-8700 Leoben Austria
4. Department of Materials Physics; Montanuniversität Leoben; Jahnstr. 12 A-8700 Leoben Austria