Alumina foam ceramics is a new type of ceramic material with many advantages. First of all, alumina foam ceramic has extremely high temperature stability and corrosion resistance. It can withstand extremely high temperatures without deformation or rupture. This gives it a wide range of applications in high-temperature environments, for example as a lining material for high-temperature reactors or as an insulating material for automotive exhaust systems. At the same time, the corrosion resistance of alumina foam ceramic is one of its key features. It is able to resist the corrosion of many chemical media such as acid, alkali, salt and so on, so it is widely used in chemical industry, metallurgy and other fields.