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Registered Member #8
Joined: Thu Feb 02 2006, 04:34AM
Location: Harlowton, MT, United States
Posts: 214
I wonder how well it would work to make an electromagnet where, instead of having a solid conductor with liquid coolant circulating through it, the conductor itself was a liquid metal that doubled as the coolant. Sodium/Potassium eutetic alloy which is liquid from -12.6 to 785°C would be highly appropriate, as it is far more conductive than other liquid metals and alloys like mercury or gallium/indium.
The metal could be pumped around and through a radiator by a mechanical pump, or possibly some electromagnetic scheme, and the flow would be segmented by mechanical means at the power supply end to avoid a short circuit. I imagine extremely high current could be used with such a design, though with equally extreme heat losses.
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Liquid Coil Electromagnet
