A review on the microstructure of silver metal-oxide electrical contact materials

Based on the methods of improving the properties of silver tin oxide electrical contact materials, the design and control of microstructure are considered as the key to improving the performance of silver metal-oxide. In this paper, the effects of oxide intrinsic doping on the properties of silver-oxide electrical contact materials, multiphase oxide and heterogeneous core-shell oxides enhanced silver-based electrical contact materials, and the effect of silver and oxide particle sizes on the properties of silver-based electrical contact materials were systematically reviewed. Furthermore, the development of the next-generation silver metal-oxide electrical contact materials is prospected.