Inside the early eighties Toyota researched production of an adiabatic engine making use of ceramic parts in the hot gas region. The use of ceramics would have authorized temperatures exceeding 1650 °C. Advantages would come with lighter materials and a smaller cooling method (or no cooling method in any respect), https://marioqhcxr.wikibriefing.com/3973028/considerations_to_know_about_what_is_ceramic_material