Preparation method of fluorite type high-entropy ceramic

The invention relates to the technical field of high-performance ceramics, in particular to a preparation method of fluorite type high-entropy ceramics. The fluorite type high-entropy ceramic is obtained by calcining high-entropy ceramic powder. The preparation method of the high-entropy ceramic powder comprises the following steps: dispersing transition metal salt, rare earth metal salt and a substance A into water to obtain a mixed solution; and dropwise adding a precipitator into the mixed solution until the precipitation is complete, standing, centrifuging, washing the obtained precipitate, drying, and grinding to obtain the high-entropy ceramic powder. The high-entropy ceramic precursor powder (high-entropy ceramic powder) is prepared by adopting a coprecipitation method, required experimental equipment is simple, operation is easy, large-scale production is facilitated, meanwhile, the sintering temperature of the high-entropy ceramic powder can be remarkably reduced, rapid sintering ...