In the early 1980s Toyota investigated creation of an adiabatic motor applying ceramic factors in the recent fuel space. Using ceramics would've permitted temperatures exceeding 1650 °C. Advantages would include lighter materials plus a more compact cooling technique (or no cooling process in the least), resulting in key fat reduction. https://simonwywur.blogsuperapp.com/39757466/not-known-details-about-boron-carbide-hot-pressed-sheet