Aluminium oxide (Al2O3) in its various degrees of purity is the most commonly used high-performance ceramic material.
The special property of aluminum titanate (Al2TiO5) is its very good thermal shock resistance. Components made of this material can withstand even abrupt temperature changes of several hundred degrees without damage, although they have low strengths.
Unlike other ceramic materials, zircon oxide (ZrO2) has a very high resistance to crack propagation. In addition, zirconia ceramic has a very high thermal expansion and is therefore a popular choice for the realization of joints between ceramics and steel.
Aluminum nitride (AlN) is the only technical ceramics material to exhibit the extremely interesting combination of very high thermal conductivity and very good electrical insulation properties.
Silicium nitride (Si3N4) exhibit an excellent combination of material properties. They are almost as light as silicon carbide (SiC), but have very good thermal shock resistance due to their microstructure and are insensitive to shock and impact, thanks to their very high fracture toughness.