Microstructure, Crystal structure and ionic conductivity of 3 mol % (Fe, Mn, Co, Zn) doped 8YSZZ.A. Ahmad, B. Johar, S. Tinesha, S.F. Khor and E.K. KokMATEC Web Conf., 78 (2016) 01093DOI: https://doi.org/10.1051/matecconf/20167801093