Thin Thermal Pad to Increase Thermal Conductivity (+500C temp)

[Helepolis]

High all,

I need to increase thermal conductivity between Steel and Aluminum plates at +500C temps, using a thing semi-flexible sheet without gluing it to the surfaces of the metal plates.

Is there anything that can fit this problem?

Thanks,

SD

 

[itsmoked]

Give these people a call. They're sort of the top dog in this stuff.

Bergquist

Keith Cress
kcress -

http://www.flaminsystems.com

 

[hacksaw]

the melting point of pure Al is 660C, and it readily oxidizes,

you need to consider alternatives

 

[Helepolis]

Excellent, thanks!

 

[Helepolis]

500C is worst case, actual working temp will be around 300-400, for a duration of couple of minutes.

 

[IRstuff]

This subject has come up in the past: thread391-344083, but flexibility at high temperatures is problematic. Otherwise, see also

http://www.thermon.co.za/catalogue/heat-trace/steam-tracing/heat-transfer-compounds

https://www.tedpella.com/technote_html/16057 TN.pdf

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert!

https://www.youtube.com/watch?v=BKorP55Aqvg

faq731-376 forum1529 Entire Forum list

http://www.eng-tips.com/forumlist.cfm

 

[EdStainless]

Contact manufacturers of heat transfer paste.
I have used both MgO and BN for high temp heat transfer and they work fairly well.
At your temps a silicone or Krytox grease loaded with a high heat transfer filler would do the trick.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube

 

[hendersdc]

I have used 611HTC from Timtronics which is rated up to 360C with good results. At the time, this was the highest temperature rating I could find that was still a grease as opposed to a cement. [URL unfurl="true"]https://timtronics.com/high-temperature/[/url]

 

[georgeverghese]

Graphite is a good heat conductor - graphite is used in compact heat exchangers in some exotic applications - see if this helps -flexible graphite sheets

https://www.digikey.com.au/en/product-highlight/p/panasonic/pyrolytic-graphite-sheets

 

[hendersdc]

georgeverghese,

Interesting stuff, looks much easier to use than a thermal grease, do you know how well it handles differential thermal expansion?

 

[EdStainless]

Or this

https://www.bn.saint-gobain.com/applications/electronic-cooling

If that dosen't go hot enough then look at straight hexBN.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube

 

[georgeverghese]

@hendersdc

Wouldnt know details, maybe write to the supplier. All I know is that there are compact heat exchangers made out of graphite.