Development of Nano – flux powder from bio-waste for welding application S.A. Afolalu, O.M. Ikumapayi, J.F. Kayode, T.S. Ogedengbe, A.A. Adediran, T.C. Jen, S.A. Akinlabi and E.T. Akinlabi E3S Web Conf., 430 (2023) 01212 Published online: 06 October 2023 DOI: 10.1051/e3sconf/202343001212