alt Hacker News> By definition a liquid cannot be below its freezing point until it has completed its phase change.
Supercooled water is a thing: (and I've seen it a few times myself)
Replies
mrloopex • yesterday at 10:24 PM
Does that mean every TTT diagram is wrong?
Nevermind I just learned about CCT diagrams. I guess having only one year of materials engineering means I should STFU. :)
Superheating, too, and that's something that can happen in a microwave, occasionally causing severe burns when superheated water flash boils. AFAIU, it's the same phenomenon--lack of nucleation sites to kick-off the phase transition.