B15-014 EXPERIMENTAL STUDY OF FILLER INSERTION EFFECT ON MEAN THERMAL CONTACT CONDUCTANCE
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概要
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A series of experiments have been performed to investigate the filler insertion effect on the temperature drop at the wavy contact interface ΔT and the mean thermal contact conductance h_<mƒ>. Representative behavior of ΔT against the mean nominal contact pressure p_m is clarified, and the effect of an interval of time on ΔT is shown for the silicone filler with thickness δ_<ƒo>=2mm. The silicone elastomer is proved effective to increase h_<mƒ> despite its low thermal conductivity. Further, it is shown that h_<mƒ> of 0.5mm thick silicone filler becomes two to three times higher than that of bare contact under the unloading process. However, it is also shown that h_<mƒ> decreases with increasing δ_<ƒo>, therefore filler insertion with improper thickness results in a reverse effect on increase in h_<mƒ>. As for metallic filler insertion using an aluminum or a copper foil, only a little improvement in h_<mƒ> is obtained in spite of its high thermal conductivity.
- 一般社団法人日本機械学会の論文
- 2003-11-30
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