标题：Molten salt corrosion property of NiFe2O4/Ag inert anodes
作者机构：[Jiao, Wanli ] School of Material Science and Engineering, Shandong University of Technology, Zibo 255049, China
来源：Kuei Suan Jen Hsueh Pao/ Journal of the Chinese Ceramic Society
摘要：NiFe2O4/Ag inert anodes were prepared by the solid-state sintering method with Fe2O3, NiO and Ag as the main materials. The NiFe2O4/Ag inert anodes were characterized by X-ray diffraction and scanning electron microscopy. The thermal shock resistance, flexural strength and static thermal corrosion rates and electrolytic corrosion rates in cryolite molten salt were measured and the corrosion process was studied. It was found that the inert anode consisted of NiO, NiFe2O4 and Ag. With the increase of Ag content, the static thermal corrosion rates of the samples increased. Because the thermal shock resistance and flexural strength were improved, the electrolytic corrosion rates decreased. The static thermal corrosion and electrolysis corrosion are controlled by physical and chemical dissolutions. Because the metal Ag intensified the crystal boundary, the electrolysis corrosion processes begin at the crystal grain.