Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : March 14, 2019
In this study, we investigate thermal conductance switching characteristics using liquid metal gallium indium eutectic alloy. Gallium indium eutectic alloy was fabricated by mixing gallium and indium. Liquid metal is poured into the micro channel saturated with electrolyte aqueous solution which is driven by applying electric field and known as electrowetting. The filling rate of liquid metal in the action part can control thermal conductance. Thermal switching using electrowetting process shows that the highest value of thermal conductance ratio was about 1.6 for our liquid metal. In the future, we will be developing high efficient device using MEMS technique.