Electromagnetic rotation of a liquid metal sphere or pool within a solution

摘要: A liquid metal electric motor including a pair of concentric ring electrodes, permanent magnet and electrolyte solution is demonstrated. galinstan sphere, along with NaOH solution, stimulated to rotate centrifugally around the central electrode rotating speed increases voltage. The serves rapidly remove oxide on surface, reduce motion friction provide impetus metal. As mass increased 12.16 g form kidney-like body, its appears more controllable effect electrolytic action in becomes weak range 0–1.82 V. 18.20 g circular ring-shaped ideal voltage for controlling 0–0.81 V. fluid rotates at 1.9 r.p.m., even an extremely low 0.03 V. established here can find important applications chip cooling, pumps, material mixing, soft machine realization, etc.