Application of Boron Carbide in Refractory Materials

Application of Boron Carbide in Refractory Materials
Boron carbide is mainly used for anti-oxidation in carbon-containing refractory materials, which can densify the product and prevent the oxidation of carbon in carbon-containing refractory materials. At the same time, at 1000℃～1250℃, Al2O3 reacts with B2O3 to generate 9Al2O3· The columnar crystals of 2B2O3 are distributed in the matrix and gaps of the refractory material, thereby reducing the porosity and improving the strength at medium temperature, and the generated 9Al2O3 2B2O3 crystals have volume expansion, which can heal volume shrinkage and reduce cracks.