Has anyone worked on Vickers Valiants?

I’m interested to know about Vickers Valeints, and in particular the fuel tanks for the aircraft.

I’m interested to know whether a chap in the pub was correct by saying “the tanks had a ceramic plate that rotated within and also the fuel was heated via an element”

What were the tanks made of, aluminium I assume?

Any help would be useful, I don’t particularly like the chap and would like to put the matter to rest.

Thanks in advance