texaspyro wrote:
Screw the aluminum oxide (BTW, you can get it at ceramics supply stores) and go with silicon carbide. Much better thermal conductivity. Search Ebay for “silicon carbide powder” and “silicon carbide media”. You can also get it at lapidary suppliers.
Thank you texaspyro. Buried up above I linked to the following thread where you have some great info on it. I was trying to is if it is time proven now. I was going to post in that thread but it was about a permanent potting. In retrospect, I should have. Actually, I will because it would be good to see that thread get followup in it. It seems to be where you originated the idea: