I'm probably a terrible person for thinking this, but it popped in my head that it's completely possible to make a pressure fryer out of titanium, and make some really good chicken in it. It would work with aluminum, too. But not with carbon fiber...the fry oil would not be compatible with the epoxy. And that's even loading it the right way, in tension...and my background is in electronics and computer systems and I still figured that out. So I'm left sad and a little hungry. Ok, returning the thread back to its original purpose...