In the early 1980s Toyota researched creation of an adiabatic motor using ceramic components in the recent fuel space. Using ceramics would've permitted temperatures exceeding 1650 °C. Advantages would include lighter materials plus a more compact cooling process (or no cooling process in the least), resulting in key fat reduction. https://superparamagneticbeads81582.blogaritma.com/37186183/getting-my-techniques-in-ceramics-to-work