Liquid metal Liquid metal Liquid metal consists of alloys with very low melting points which form a eutectic that is liquid at room temperature. The standard metal used to be mercury, but gallium-based alloys, which are lower both in their vapor pressure at room temperature and toxicity, are being used as a replacement in various applications. A few elemental metals are liquid at or near room temperature. The most well known is mercury(Hg), which is molten above −38.8 °C (234.3 K, −37.9 °F). Others include caesium(Cs), which has a melting point of 28.5 °C (83.3 °F), rubidium (Rb)(39 °C [102 °F]), francium
Liquid metal devices, medical devices, interconnected devices and so on. Typical uses of liquid metals include thermostats, switches, barometers, heat transfer systems, and thermal cooling and heating designs. Uniquely, they can be used to conduct heat and/or electricity between non-metallic and metallic surfaces. Liquid metal is used extensively by overclockers and computer enthusiasts to replace the original thermal interface on CPU and/or GPU dies to improve cooling efficiency and performance. Also, liquid metal can be used for wearable devices. The Internet of Things (IoT) can improve our lives. Emerging IoT applications require reliable and effective wireless connectivity. Therefore, it is necessary to