Aluminum Oxide (Al2O3) a is the most well-known and cost-effective ceramic material. Due to a combination of good strength, a high E-module and thermal shock resistance you can find it in high-temperature applications such as protective tubes, as well those where low friction is required i.e. slide bearings in pumps. The good hardness and the excellent temperature durability (max. operation temperature 1,500°C) makes Aluminum Oxide a reliable partner.