**Acknowledgements**

This work has been supported by the European Social Fund through the Sectoral Operational Programme Human Capital 2014-2020, through the Financial Agreement with the title "Burse pentru educatia antreprenoriala in randul doctoranzilor si cercetatorilor postdoctorat (Be Antreprenor!)" "Scholarships for entrepreneurial education among doctoral students and postdoctoral researchers (Be Entrepreneur!)", Contract no. 51680/09.07.2019 - SMIS code: 124539.

### **Author details**

Lorena Deleanu<sup>1</sup> \*, Mihail Botan<sup>2</sup> and Constantin Georgescu<sup>1</sup>

1 "Dunarea de Jos" University, Faculty of Engineering, Department of Mechanical Engineering, Galati, Romania

2 National Institute for Aerospace Research "Elie Carafoli" (INCAS), Bucharest, Romania

\*Address all correspondence to: lorena.deleanu@ugal.ro

© 2020 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

*Tribological Behavior of Polymers and Polymer Composites DOI: http://dx.doi.org/10.5772/intechopen.94264*
