Contact resistance of thermal grease between rigid metal plates 1

[Tunalover]

Hi Folks,

I'm looking for contact thermal resistance (degC/Watt) of thermal grease of a specified thickness between two rigid metal plates with variable pressure (from fasteners).

Also, how about the dry contact resistance (degC/Watt) between the same plates with variable plate flatness and plate surface finish?

Thanks in advance!

Bruce


Tunalover

 

[IRstuff]

There seems to be plenty of information found through Google:

http://www.lytron.com/Tools-and-Tec...ion-Notes/Reducing-Contact-Thermal-Resistance

https://www.electronics-cooling.com/1997/05/calculating-interface-resistance/

https://www.dowcorning.com/content/publishedlit/11-1712-01.pdf

http://www.nrel.gov/transportation/pdfs/42972.pdf

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[Tunalover]

IRStuff:
As usual you come up with the right stuff!


Tunalover

 

[IRstuff]

Much depends on how thin you get the layer, though. It's supposed to be only thick enough to fill in the crevices. Typically, that's a time consuming effort, so few people do that.

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