1. Center for Nanoengineering and Tribocorrosion, School of Mining, Metallurgy and Chemical Engineering, University of Johannesburg, Johannesburg, South Africa
2. Department of Mechanical Engineering Science, University of Johannesburg, Johannesburg, South Africa
3. Mechanical Engineering Department, Adeseun Ogundoyin Polytechnic, Eruwa, Nigeria
4. Department of Mechanical Engineering, University of Ibadan, Ibadan, Oyo State, Nigeria