[extropy-chat] A liquid that freezes when heated

[Acy James Stapp]

One use is in 3D lithoprinting where you need to support disconnected
parts of an object. Typically this is done by leaving unsintered powder
(which has to be cleaned out), building struts that are then removed, or
using some sort of wax that is melted out after the fact. The cleaning
process is in fact a big portion of the time and cost for JIT
manufacturing of objects. These new materials don't require melting out
as they liquify when they cool and can be rinsed clean with water.
 
-----Original Message-----
From: extropy-chat-bounces at lists.extropy.org
[mailto:extropy-chat-bounces at lists.extropy.org] On Behalf Of Kevin
Freels
Sent: Monday, 27 September, 2004 09:48
To: ExI chat list
Subject: [extropy-chat] A liquid that freezes when heated


It freezes when heated, and when cooled, melts. Pretty neat.
 
http://physicsweb.org/articles/news/8/9/15
 
Any ideas on it's usefulness?
 
 
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