LAUSR

Abstract In recent years, the application of far-infrared ceramics in fuel activation, medical care, and stealth materials has attracted an increasing amount of attention. This article proposes an analytical method to determine ceramic formulation based on the chemical composition of tailings, in which the weight ratio of the iron ore tailings, calcium carbonate, and silica is 6:1:1. On this basis, 3 wt%, 5 wt%, 7 wt%, 9 wt%, and 11 wt% schorl was added to improve the far-infrared radiation performance of iron-tailing ceramics. The results showed that the far-infrared emissivity of iron-tailing ceramics was 0.887, this being lower than that of the experimental group, and the maximum value was 0.925 when 5 wt% schorl was added. The best far-infrared radiation performance obtained is summarized as being the isomorphic structure formed by substituting metal ions that changes the dipole moment between the molecules and reduces the symmetry of the crystal vibration.