1. Institute of Materials Physics
2. Graz University of Technology
3. 8010 Graz
4. Austria
5. Erich Schmid Institute of Materials Science
6. Austrian Academy of Sciences
7. 8700 Leoben
8. Department of Orthopaedics and Trauma
9. Medical University of Graz
10. 8036 Graz
11. Institute of Electron Microscopy and Nanoanalytics