The Liquid Metal
The liquid metal has significant advantages over other single phase liquid solutions. The thermal and physical properties of the material give it the ability to cool extremely high heat fluxes. With its very low vapor pressure, the boiling point of the material is in excess of 2000Â°C. This provides the capability to cool extremely high power densities without the liquid-metal changing phase, removing power density as the limiting factor in cooling performance. The liquid metal is non-flammable, non-toxic and environmentally friendly. As a metal, the liquid is both highly thermally conductive and highly electrically conductive. The thermal conductivity makes it ideal for heat removal and dissipation. The electrical conductivity enables the use of electromagnetic pumps to propel the liquid.
The Electromagnetic Pump
One unique benefit of liquid metal is the ability to pump this coolant efficiently with a silent, non-moving parts pump. The electromagnetic pump is located in-line with one of the fluid channels. It consists of magnets, a yoke and two electrodes, again ensuring the simplicity of the solution.