Negative thermal expansion liquid
Negative thermal expansion liquid
(OP)
Hello,
Is it possible to manufacture (or buy) a liquid that has negative coefficient of thermal expansion (expands while cooled) ?
Thanks,
Darek
Is it possible to manufacture (or buy) a liquid that has negative coefficient of thermal expansion (expands while cooled) ?
Thanks,
Darek





RE: Negative thermal expansion liquid
Good luck,
Latexman
To a ChE, the glass is always full - 1/2 air and 1/2 water.
RE: Negative thermal expansion liquid
You need to give a bit more about what sort of temperature range you're looking at and what sort of expansion you want.
From this small piece It looks like it's a pretty limited set of substances...
https://en.wikipedia.org/wiki/Negative_thermal_exp...
Also why?
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Negative thermal expansion liquid
Thanks
RE: Negative thermal expansion liquid
And you are making the container out of something with zero CTE also? (caution, Invar rusts)
You are discovering why people do this with expansion tanks, check valves and back pressure regulators.
There is no safe, simple, stable, water based ZCTE solution.
= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube
RE: Negative thermal expansion liquid
The container is made of rubber (unfortunately positive CTE).
Thanks!
RE: Negative thermal expansion liquid
Think the two substances will be on the same shelf...
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Negative thermal expansion liquid
Just kidding, thanks for an answer :D
RE: Negative thermal expansion liquid
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Negative thermal expansion liquid
Hello DarekN!
When we engineers have a problem, and then find a possible solution, and after research the solution does not work, we have to get back to start.
So what is your real problem?