1. Institute for Nanoengineering Research, Department of Chemical, Metallurgical & Materials Engineering, Tshwane University of Technology, Pretoria, South Africa
2. "Department of Mechanical Engineering science, University of Johannesburg, Auckland park 2006, South Africa Department of Materials and Metallurgical Engineering, University of Ilorin, Nigeria"
3. Department of Mechanical Engineering, Butterworth Campus, Walter Sisulu University
4. Materials Innovation Centre, School of Engineering, University of Leicester, United Kingdom
5. Engineering Department University of Leicester, United Kingdom
6. Department of Mechanical Engineering science, University of Johannesburg, Auckland park 2006, South Africa