The Tidun Shield wear-resistant ceramic fan impeller adopts metal oxide ceramics covering the flow passage surface to greatly improve the wear resistance of the impeller. It is mainly manufactured with high-performance engineering ceramics such as alumina, silicon carbide and zirconia. A composite ceramic layer is formed on the working surface of the impeller, while secondary sintered silicon nitride toughened ceramics or zirconia-toughened alumina ceramics are applied on severely worn local areas. These ceramic materials feature extremely high hardness. The hardness of toughened alumina composite materials reaches HRA ≥ 86, with a maximum value above HRA 94. Its resistance to particle erosion and abrasion is more than 5 times higher than that of conventional treatments such as tungsten carbide surfacing, spraying and overlay welding, and over 100 times higher than the base 16Mn steel substrate.