Sarfraj Ahmed is a Research Fellow at the National Institute of Technology, Raipur, India has more than 6 years of professional experience including industry and academia. He obtained his Master's in Materials Engineering from VNIT, Nagpur in 2009 and his research areas are in tribology, coatings, and gas sensors.Vinayak S. Dakre obtained his PhD in metallurgical and materials engineering from Vivesvaraya National Institute of Technology (VNIT), Nagpur in 2019. He has published many research papers in international journals.