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Negative thermal expansion liquid
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Topic: Negative thermal expansion liquid (Read 6591 times)
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DarekN
Very New Member
Posts: 2
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Negative thermal expansion liquid
«
on:
September 28, 2017, 07:59:47 AM »
Hello,
Is it possible to manufacture (or buy) a liquid that has negative coefficient of thermal expansion (expands while cooled) ?
Thanks,
Darek
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Arkcon
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Re: Negative thermal expansion liquid
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Reply #1 on:
September 28, 2017, 08:55:21 AM »
Yes. Much of the planet Earth contains water, which is available at a reasonable price in most areas. Water expands between the temperature of 3.98 °C down until 0 °C, when it freezes.
https://en.wikipedia.org/wiki/Water#States
I'm going to assume you already knew about water. But I bring it up because you didn't trouble yourself to mention: how much expansion, and over what temperature range do you mean. The alloy called Wood's metal also expands when cooled. And a number of other composite solids as well.
https://en.wikipedia.org/wiki/Negative_thermal_expansion#Materials
If water and these materials aren't what you're looking for, you have to tell us why.
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Hey, I'm not judging. I just like to shoot straight. I'm a man of science.
DarekN
Very New Member
Posts: 2
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Re: Negative thermal expansion liquid
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Reply #2 on:
September 28, 2017, 09:09:44 AM »
I am interested to have a "container" with water mixed with this negative thermal expansion liquid (in right proportions) to obtain a mix that has 0 thermal expansion coefficient (and still be a liquid). I would like to have it in "room temperature / conditions".
Is now everything okay?
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billnotgatez
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Re: Negative thermal expansion liquid
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Reply #3 on:
September 29, 2017, 11:41:06 AM »
@DarekN
What did your GOOGLE search turn up for
Quote
zero thermal expansion liquid
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Enthalpy
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Re: Negative thermal expansion liquid
«
Reply #4 on:
October 10, 2017, 07:46:21 AM »
If you have such a solid, you can make a suspension of it in a liquid. Maybe the suspension fulfils your wishes?
And what if the expansion of the container matches that of the liquid? Solid polymers tend to expand much.
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Negative thermal expansion liquid