C. I. Nwoye

Department of Metallurgical and Materials Engineering, Nnamdi Azikiwe University Awka, Anambra State, Nigeria

M. C. Obelle

Department of Polymer and Textile Engineering, Nnamdi Azikiwe University Awka, Anambra State, Nigeria

S. O. Nwakpa

Department of Metallurgical and Materials Engineering, Nnamdi Azikiwe University Awka, Anambra State, Nigeria

C. W. Onyia

Department of Metallurgical and Materials Engineering, Enugu State University of Science & Technology, Enugu State, Nigeria

I. Obuekwe

Scientific Equipment Development Institute Enugu, Nigeria

N. E. Idenyi

Department of Industrial Physics, Ebonyi State University, Abakiliki, Nigeria