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Attempting to freeze matter under extreme pressure? (lemm.ee)
submitted 10 months ago by Jeredin@lemm.ee to c/askscience@lemmy.world
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I tried finding some research and found lots about freezing matter or putting it under extreme pressure, but not trying both.

My thought experiment involved taking a small portion of ideal of matter (not sure what), artificially applying extreme pressure to it and than attempt to lower its temperature and if possible, apply even more pressure before trying to lower its temperature - taking it as low as possible under the highest pressure you could.

I assumed there's likely to be a conflict between pressure - thus increasing vibration/wave properties of the material - and how it would be possible to reduce those energetic wave properties.

Thanks for any insight.

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[-] PaintedSnail@lemmy.world 3 points 10 months ago* (last edited 10 months ago)

You might be interested in supercritical fluids, which are fluids at high enough pressures and low enough temperatures (but not high enough pressures or low enough temperatures to solidify) that they act as both a liquid and a gas: https://en.wikipedia.org/wiki/Supercritical_fluid

[-] ProfessorProteus@lemmy.world 1 points 10 months ago

I was about to correct you with "superfluid" but I remembered that that's a completely different thing (low temp and low pressure), but also utterly fascinating.

For anyone who's never heard of it, here's part 1 of a series on the liquid Helium superfluid. It's pretty old, but still great stuff

this post was submitted on 01 Jan 2024
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