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In Reply to: RE: carbon fiber in teflon posted by beautox on November 14, 2016 at 13:31:54
'learned' a long time ago. No need to be snarky.
Have fun with your new wire.
Termination would appear the next hurdle. Did I read some suggestion of Silver conductive epoxy? Will that stick to Teflon? VDH doesn't sell bulk wire for this reason.
I think a DOPED (addition of a conductor, in this case) Carbon Fiber to lower resistance MIGHT be in order and make it useful as a speaker wire.
In the future, I'd be looking forward to GRAPHENE in a variety of applicaitons.
Too much is never enough
Follow Ups:
Silver conductive epoxy... that sounds interesting! Where can you get that from? I guess it must be quite common?
Why is graphene any different from carbon fibre? Why not simply use quality copper or silver wire?
We used it to 'bond' quartz tuning forks to the substrate. This was in the early 70's when I worked at STATEK, an originator of this style of quartz oscillator. Our bread-and-butter product was a watch crystal which oscillated at 32,768hz. = 2e15
You can get it on Amazon or even RadioShack these days. Ours came cold packed in styrofoam with dry ice.
My understanding of Graphene is that it is (potentially) a SHEET product of x number of atoms thickenss. It MIGHT be useful to make planar speakers like Magnepan or perhaps Electrostats.
Small size applications would be in headphones or tweeters. I'd even think a RIBBON Tweeter element could be fabricated.
This material should be 'doped' in specific patterns, so in the case of magnepan, for example, NO wire would have to be 'glued' to the surface to provide a conductor. This ultra-lightweight diaphragm in conjunction with Neo magnets would (or COULD) have pretty good sensitivity and power handling.
New, and currently only imaginary designs are possible, too, I suppose. STay Tuned!
Too much is never enough
Sounds really interesting!
I'm not current since the 'state-of-the-art' changes fairly quickly.
I'm not sure if ANY applications are out of the lab yet.
I'm hoping for a room temp superconductor. But CarbonFiber might be better. I'm thinking REAL high voltage lines for long distances. Current practice is to us Aluminum for weight savings over copper.
Link to some light reading.
Too much is never enough
I would imagine that as graphene or carbon fire gets warmer/hotter the resistance will dramatically vary and get higher (probably, which should be an interestingly unstable effect), whereas I believe when copper or silver get warmer/hotter the resistance gets lower (should be an interesting effect)?
Edits: 11/14/16
Why use imagination when you have Google?
Temp Coefficient Copper 0.00386, Silver 0.0038, Graphite -0.0005
So the sign is right, but the magnitude of carbon's temp change is one seventh of copper or silver, so not what I'd think of as dramatic. If you increase the temp of this carbon interconnect by 10C, the resistance will decrease by about 0.1 ohm
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