Description

Field's Metal, also known as Field's alloy, is a low-melting-point eutectic alloy. It has a melting temperature of 333 K (62 °C, 144 °F). It is a mixture of bismuth, tin, and indium. The mass fractions of the metals in Field's metal are: 51% indium, 32.5% bismuth, 16.5% tin. Field's metal is named after its inventor, Simon Quellen Field. It is expensive because of the price of indium, which makes up over half of its mass. However, it is a less toxic alternative to Wood's metal because it contains neither lead nor cadmium. Field's metal is widely used as a liquid metal coolant in advanced nuclear reactors and in electro–magneto–hydrodynamic two-phase flow loops.