Material stress doesn't work like a soda can. Epitaxial thin films are stressed by an underlying lattice, for example, not by being squeezed in some container.

Material stress doesn't work like a soda can. Epitaxial thin films are stressed by an underlying lattice, for example, not by being squeezed in some container. These stresses can be very high (although i don't know the order of magnitude off the top of my head)