1. Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
2. Institute of Materials Science and Engineering, Poznan University of Technology, Jana Pawla II No. 24, 61-138 Poznan, Poland
3. Department of Materials Engineering, Federal University of São Carlos, Rod. Washington Luis, km 235, CEP: 13565-905, São Carlos, SP, Brazil
4. Graduate Program of Materials Science and Engineering, Federal University of São Carlos, Rod. Washington Luis, km 235, CEP: 13565-905, São Carlos, SP, Brazil