In this study, AlO-siloxane composite thermal pads were fabricated using a tape-casting technique, and the thermal conductivity effect of the AlO nanoparticle powder synthesized using a flame fusion process on siloxane composite thermal pads was investigated. Furthermore, various case studies were implemented, wherein the synthesized AlO nanoparticle powder was subjected to different surface treatments, including dehydration, decarbonization, and silylation, to obtain AlO-siloxane composite thermal pads with high thermal conductivity. The experimental results confirmed that the thermal conductivity of the AlO-siloxane composite pads improved when fabricated using surface-treated AlO nanoparticle powder synthesized with an optimally spheroidized crystal structure compared to that produced using non-treated AlO nanoparticle powder.
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