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Unread 08-09-2004, 08:59 AM   #1
Tempus
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Default Better material possibility for heatsinks / waterblocks

http://www.ctd-materials.com/products/electricins.htm

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CTD has developed a co-processed ceramic/epoxy hybrid insulation system with increased radiation resistance. This new material is revolutionizing the manufacturing of superconducting magnets using conductors such as niobium tin, which undergo a high temperature heat treatment processes. CTD’s CO-processed insulation material enables the coil be made into a monolithic structure immediately after winding, and remain such throughout the heat treatment and epoxy impregnation processes. This significantly reduces fabrication risk and cost. The low thermal expansion and high thermal conductivity of this insulation also improve coil performance.

Now, I have no idea what they rate as high thermal conductivity, but if its near the copper level AND is electrically insulative, wouldn't this make a rather nice heatsink?
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Unread 08-09-2004, 09:53 AM   #2
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It looks to be a thermal insulator, but I may be wrong.
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Unread 08-09-2004, 09:58 AM   #3
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Hmmm... how is it that we care about non-electrical-conductivity in a waterblock?
Just wondering...
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Unread 08-09-2004, 10:24 AM   #4
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Quote:
Originally Posted by killernoodle
It looks to be a thermal insulator, but I may be wrong.
They said "The low thermal expansion and high thermal conductivity of this insulation also improve coil performance." Its an electrical insulator with thermal conductive properties.


Quote:
Originally Posted by bobkoure
Hmmm... how is it that we care about non-electrical-conductivity in a waterblock?
First off, it depends on how its made. If its initially a liquid state, you could create a poured on waterblock - cooling all the ICs with no chance of electrical shorting.

Even if its a solid, there is still the benefit of no more galvanic issues. Its possibly easier to create, probably a lot easier to machine.

I really have little idea what it is beyond the "ceramic/epoxy" part of their description. If I had to guess, I'd bet it was the binary compound that cures to a nice solid. I was initially thinking that you could just make a kick ass videocard cooler with it - get all your ram and gpu with one mold, make it easy to mass produce, no chance of shorting. And if its a liquid initially, you have the potential to avoid many of the thermal interface material issues.
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Unread 08-09-2004, 12:08 PM   #5
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Given that this is a new type of electrical insulator, I don't see how it would be useful to us.
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Unread 08-09-2004, 02:59 PM   #6
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I requests some information from the company. If its what I think, I'll get a demo together and show you why I think it might be very cool for making water blocks.
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Unread 08-10-2004, 12:00 PM   #7
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Quote:
Originally Posted by Tempus
I requests some information from the company. If its what I think, I'll get a demo together and show you why I think it might be very cool for making water blocks.
It would be pretty kool if you could just make a mold and pour it to build and entire water block. Could drastically change the types of designs people create. Not to mention let a lot more people make their own blocks. Its a lot easier to make a foam mold than to obtain a milling machine...
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Unread 08-10-2004, 12:26 PM   #8
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I don't see anything to suggest is should be used for a water block. Looks like it is used for insulation for making superconducting magnets and stuff. Doesn't say the material itself is superconducting...
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Unread 08-10-2004, 12:41 PM   #9
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i also like to know if it is porous in structure...i meant, even Cu and Al "sweat" if pressure is a little too high.....
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Unread 08-10-2004, 01:52 PM   #10
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the .pdf on it says it is initially porous but they use the expoy resin to give it strength, shape, and fill in the gaps.
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Unread 08-10-2004, 01:54 PM   #11
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Quote:
Originally Posted by jaydee116
I don't see anything to suggest is should be used for a water block. Looks like it is used for insulation for making superconducting magnets and stuff. Doesn't say the material itself is superconducting...

Nope. As I've said, the only claim they are making is that it is strong, electrically insulative, and thermally conductive.

I was thinking of wrapping my whole video card in something like this, running 1/2" copper tubing, and seeing how well it works. Electrically insulating = no shorts. So you can cool everything in one wrap/dip/mold/whatever.
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Unread 08-10-2004, 02:44 PM   #12
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Quote:
Originally Posted by Tempus
Nope. As I've said, the only claim they are making is that it is strong, electrically insulative, and thermally conductive.

I was thinking of wrapping my whole video card in something like this, running 1/2" copper tubing, and seeing how well it works. Electrically insulating = no shorts. So you can cool everything in one wrap/dip/mold/whatever.
Well highly thermaly conductive could mean anything. It could be less than aluminum or more than copper. We need a number.
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Unread 08-10-2004, 03:23 PM   #13
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They mean thermal conductivity in the context of electrical insulation and padding for cryogenic superconductors. Also the product is intended to dissipate some heat during manufacture.

I think in most applications this thermal conductivity needn't be very great, or even shouldn't be. All insulation conducts some heat off live wires, in any case.

For sure the company would love to develop just what you're looking for, Tempus, and, personally, I'd love to see waterblocks manufactured differently than as now.
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Unread 08-10-2004, 05:55 PM   #14
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"I'd love to see waterblocks manufactured differently than as now."

stay tuned, say 3-4 months (NDA applies)

Last edited by BillA; 08-10-2004 at 07:09 PM.
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Unread 08-10-2004, 06:56 PM   #15
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Quote:
Originally Posted by unregistered
"I'd love to see waterblocks manufactured differently than as now."

stay tuned, say 3-4 months
o0.... another cryptic message
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