1. Department of Metallurgical and Materials Engineering, Nnamdi Azikiwe University, Awka, Anambra State, Nigeria
2. Department of Metallurgical and Materials Engineering, University of Nigeria, Nsukka, Nigeria
3. Department of Mechanical Engineering, Higher Institute of Applied Sciences and Technology, University of Sousse, Tunisia
4. Laboratory of Electromechanical Systems, National Engineering School of Sfax, University of Sfax, BP 3038, Tunisia