1. Department of Materials Engineering, Research Centre for Engineering Sciences, University of Pannonia, Egyetem St. 10, H-8210 Veszprém, Hungary
2. Department of Mechanics, Research Centre for Engineering Sciences, University of Pannonia, Egyetem St. 10, H-8210 Veszprém, Hungary
3. Research Centre for Natural Sciences, ELKH, Magyar Tudosok Krt. 2., H-1117 Budapest, Hungary
4. PhD School of Material Sciences and Technologies, Óbuda University, Doberdó u. 6., H-1034 Budapest, Hungary