1. Department of Mechanical and Industrial Engineering, Tallinn University of Technology, Ehitajate 5, 19180 Tallinn, Estonia
2. Electroceramic Department, Instituto de Cerámica y Vidrio, CSIC, Kelsen 5, 28049, Madrid, Spain
3. Department of Material and Environmental Technology, Tallinn University of Technology, Ehitajate 5, 19180 Tallinn, Estonia