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4hv.org :: Forums :: General Science and Electronics
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Conundrum
Sat Nov 15 2014, 03:35PM Print
Conundrum Registered Member #96 Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061
Link2

Um.. cool! Just thinking of uses for this.

Homemade EL comes to mind, patterned with luxprint ink (cheap) and UV cured glue or good old fashioned Epoxy and with a piece of either ITO or graphene doped plastic or ATO or.. you get the idea.

The main reason why this wasn't feasible previously is that most of the materials are too expensive and/or not conductive enough .
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hen918
Sat Nov 15 2014, 05:04PM
hen918 Registered Member #11591 Joined: Wed Mar 20 2013, 08:20PM
Location: UK
Posts: 556
You would have thought they could have just told us its resistivity and bought a pair of crimp tools. Or soldered the wires to the levitator. Looks rather shoddy to me!
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Conundrum
Sat Nov 15 2014, 06:07PM
Conundrum Registered Member #96 Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061
Um.. you can't actually solder to whatever this material is.
It looks like it is a graphene/graphite hybrid but the cost is amazingly low.

What is however impressive about it is the ability to carry significant current without heating up (much) although the PLA has something to do with it.
Similar sort of idea to winding a coil around a heatsink but the problem then becomes thermal gradients in the middle..
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hen918
Sat Nov 15 2014, 08:00PM
hen918 Registered Member #11591 Joined: Wed Mar 20 2013, 08:20PM
Location: UK
Posts: 556
Well I was just looking at one of their pictures...

The problem with low melting temperature plastic is its low melting temperature
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Conundrum
Sun Nov 16 2014, 05:42AM
Conundrum Registered Member #96 Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061
Yeah,however it looks like from their literature that most of the current is due to the graphene itself.
Graphene has a tendency to reform itself when damaged so you could probably butt splice two broken ends of this material and apply a current pulse to "fuse" back together.
This was actually used to repair superconducting cables back in the day or so I hear...
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