The core characteristics include light weight (bulk density only half that of corundum products), high temperature resistance, and high mechanical strength, which is several times that of ordinary lightweight materials.
Alumina Bubble is produced by melting industrial alumina in electric arc furnace and then blowing the molten alumina into hollow spheres using compressed air, forming spherical particles predominantly composed of α-Al₂O₃ microcrystals. The core characteristics include light weight (bulk density only half that of corundum products), high temperature resistance, and high mechanical strength, which is several times that of ordinary lightweight materials.
