Corundum Composite Ceramic Prepared Using Boehmite Nanoparticles

Resumo

Consolidation of aluminum oxide and hydroxide powders, and also compositions of them with commercial alumina powders is studied. Compaction is carried out by static pressing followed by high-temperature sintering. Introduction of nanostructured boehmite into a mix of commercial Al₂O₃ powder slows down ceramic recrystallization and makes it possible to improve ceramic K_1c to 5.8 MPa·m^1/2. The ceramic obtained is promising for use as ceramic armor. Ceramic composites are prepared.