1. TI Poland Sp. z o.o., ul. Bestwińska 143a, 43-346 Bielsko-Biała, Poland; Chair of Engineering Materials and Biomaterials, Faculty of Mechanical Engineering, Silesian University of Technology, ul. Konarskiego 18a, Gliwice 44-100, Poland
2. Chair of Engineering Materials and Biomaterials, Faculty of Mechanical Engineering, Silesian University of Technology, ul. Konarskiego 18a, Gliwice 44-100, Poland