Temperature-adjustable functional ceramic material and preparation method thereof

Abstract

The invention relates to a temperature-adjustable functional ceramic material and a preparation method thereof, and belongs to the technical field of ceramic materials. According to the invention, barium titanate is taken as a main functional component, ferroelectricity and pyroelectricity are provided, and barium titanate can absorb or release charges, generate a pyroelectric effect and realize temperature regulation and control when the temperature changes; in the preparation process, through water vapor activation treatment, surface energy is increased, porosity is increased or grain distribution is improved, so that the performance of the material is improved; residual moisture, oxygen and other volatile impurities in the mixture are removed through purging by using hydrogen-nitrogen mixed gas, and the purity of the material is improved, so that the ceramic material has better heat storage efficiency; the mechanical strength of the material can be improved by adding diatomite and potassium feldspar in the kaolin modifying process; due to the addition of the rare earth compound, the modified kaolin is more sensitive to temperature change, and the ceramic material has better heat storage efficiency.