1. School of Mechanical; Materials and Mechatronic Engineering; University of Wollongong; NSW 2500 Australia
2. Ing. Mecánica-ESCS-ICBI; Universidad Autónoma del Estado de Hidalgo (UAEH); Carretera Pachuca-Tulancingo Km. 4.5, C.P.42184 México
3. UOW Electron Microscopy Centre; University of Wollongong; NSW 2519 Australia
4. PEMSA-CELAYA-CDT; Carretera Celaya Salamanca Km. 5. Celaya; Guanajuato CP 38020 México