1. CF-UM-UP-Physics Center of Minho and Porto Universities, Physics Department, University of Minho, 4800-058 Guimarães, Portugal
2. CEMMPRE-Centre for Mechanical Engineering, Materials and Processes (CEMMPRE), Department of Mechanical Engineering, University of Coimbra, 3030-788 Coimbra, Portugal
3. Engineering Department, KLC—Technical Plastics, 2430-021 Marinha Grande, Portugal
4. LED & MAT-IPN—Laboratory for Wear, Testing and Materials, Instituto Pedro Nunes, Rua Pedro Nunes, 3030-199 Coimbra, Portugal