1. UNIDEMI Department of Mechanical and Industrial Engineering NOVA School of Science and Technology Universidade NOVA de Lisboa 2829-516 Caparica Portugal
2. Department of Materials Engineering Federal University of Sao Carlos Rodovia Washington Luiz, km 235 SP-310 São Carlos São Paulo 13565-905 Brazil
3. Institute of Materials Physics Helmholtz-Zentrum Hereon Max-Planck-Str. 1 D21502 Geesthacht Germany
4. CENIMAT/I3N Department of Materials Science NOVA School of Science and Technology Universidade NOVA de Lisboa 2829-516 Caparica Portugal