RF Susceptor Heating (KHz range) Graphite Foil vs Iron Foil (or thin film)

AI Thread Summary
For low temperature RF heating susceptors, expanded graphite foil is noted for its excellent thermal conductance, providing even heating across surfaces. However, the discussion highlights a lack of comparative information on susceptance properties in specific geometries and conditions, particularly for areas smaller than 10 sq/in and foils under 2mm thick. The system operates at a maximum of 100W, raising questions about optimal material choices for efficiency. Participants are encouraged to share any new findings or rephrase the inquiry for better engagement. The need for more detailed analysis in this area remains evident.
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Which do you believe is the best choice for a low temperature RF heating susceptor, i.e. - greatest rise in temperature vs. field strength. I am aware that Graphite (expanded graphite foil) has excellent thermal conductance in plane and therefore makes for very even heating patterns over large areas, however I am dealing with areas no larger than 10 sq/in.

I have not found much information comparing the susceptance properties of the two in similar geometries, frequencies and field strengths. Foils generally <2mm thickness. The system wattage does not exceed 100W.
 
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Thanks for the post! Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?
 

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