Sintered corundum brick is a high-performance refractory material produced primarily from sintered corundum (α-Al₂O₃) through batching, high-pressure forming, and high-temperature sintering.
The Al₂O₃ content is generally ≥90%, and can reach up to 99% for high-purity grades. The main crystalline phase is corundum, which distinguishes this material from fused-cast corundum bricks.
