Corundum mullite is a ceramic material with corundum (α - Al2O3) and mullite (3Al2O3 · 2SiO2) as the main crystal phases, which has good refractoriness, thermal shock resistance, and corrosion resistance, and can be used in high-temperature industrial fields. Related products such as corundum mullite bricks focus on improving fire resistance and mechanical strength, especially suitable for environments that require high temperature and mechanical pressure.