Thread: Is cryo treatment of vintage razors worth doing?

Essentially the deep freezing causes the crystalline metallic structure to form a smaller shape, packing more crystals into a tighter lattice.

For copper wire there should be greater contact for electron transmission improving efficiency.

Originally Posted by Mike Blue

Essentially the deep freezing causes the crystalline metallic structure to form a smaller shape, packing more crystals into a tighter lattice.

For copper wire there should be greater contact for electron transmission improving efficiency.

What happens when the material returns to room temperture? Will this effect be permanent?

For practical purposes, say in the context of a human lifetime, the changes will be permanent. There are some anecdotal reports of historical blades (swords) being of a legendary level of hardness, but when tested centuries later, do not measure up to the legend physically. The laws of entropy still operate, but at a scale where we do not live long enough to personally see any changes.