Glass-to-metal seal absorb the stresses from thermal expansion mismatches. Due to its very low vapor pressure, indium finds use in glass-metal seals used in vacuum technology. Gallium is a soft metal with melting point at 30 °C. It readily wets glasses and most metals and can be used for seals that can be assembled/disassembled by just slight heating. It can be used as a liquid seal up to high temperatures or even at lower temperatures when alloyed with other metals (e.g. as galinstan). Mercury is a metal liquid at normal temperature. It was used as the earliest glass-to-metal seal and is still
Liquid metal printing process, the dielectric substrate encapsulating the liquid metal; 3. the electro-textile copper (35%copper, 65%polyester, thickness 0.08 mm, resistivity 0.05 Ω/sq) constituting the antenna ground plane. In 2015, Jie Zhang's team found that the liquid metal (i.e. EGaIn, Galinstan) placed in the electrolyte (NaOH, NaCl or NaCO solutions) can provide energy by “ingesting” aluminum as a food or fuel, enabling high-speed, high-efficiency long-term operation. A small piece of aluminum can drive liquid metal balls with a diameter of about 5 mm to achieve long-term operation. More than 1 hour of continuous exercise, speed up to 5cm/s . This flexible machine