[aghastpumpkin]

What I'm saying is they can conduct a very high level of heat and expel it very quickly. This is why Peltiers have ceramic plates.
As a bonus, ceramics do not conduct electicity.
They only bother with ceramic brakes in high end cars because the only real advantage is that they are sharper, harsher and better for slowing down from high speed. They are basically too expensive to be jsutified on normal cars.