High-temperature superconductors for spaceflight
While scientists have toyed with the idea of using AF-MPD thrusters since the 1970s, the Paihau-Robinson team believes it could be the first to test the technology in real space conditions.
To make the technology viable for space, the team is using high‐temperature superconductors (HTS). Superconductors typically operate at extremely cold temperatures, meaning the “high temperature” here is relative. The magnets will operate at temperatures of -198.15°C (-324.67°F or 75 kelvins).
HTS have almost no electrical resistance, meaning they require minimal power to generate strong magnetic fields.
In an interview with IEEE Spectrum, Randy Pollock, the chief engineer for space at Paihau-Robinson, said, “To our knowledge, this is the most powerful electromagnet that will have ever flown.”