China Has Created The World’s Strongest Resistive Magnet

By attaining a constant magnetic field of 42 Tesla (T), Chinese scientists have created the strongest resistive magnet in history, breaking the previous record of 41.4 T set by the US National High Magnetic Laboratory in 2017. The High Magnetic Field Laboratory of Hefei Institutes of Physical Science, Chinese Academy of Sciences (CHMFL) used a 32.3 Megawatt (MW) power supply to achieve this ground-breaking feat.

Compared to other magnet types, resistive magnets are easier to manage because of their simplicity and flexibility. They are typically made of basic metals like copper. They are vulnerable to the production of heat, though. Superconducting magnets, on the other hand, require extremely low, cryogenic temperatures, which makes them more difficult and expensive to operate. This is because their materials allow electrons to pass through them without resistance, making them more energy-efficient. To create magnetic fields that are even stronger, hybrid magnets combine the advantages of superconducting and resistive magnets.

The record-breaking 42 T resistive magnet marks a significant advancement in magnetic technology. This achievement stems from the innovation of the magnet’s structure and the optimization of its manufacturing process. Despite this milestone, the CHMFL team previously set the record for the strongest hybrid magnet at 45.2 T in 2022.

The new magnet holds great potential for technological advancements and scientific research, particularly in fields that rely on precise magnetic fields. It could enhance devices that utilize magnets and open up possibilities for a range of new experiments investigating the fundamental properties of electromagnetism. This development in magnet technology represents a step forward in understanding and harnessing the power of electromagnetism for future applications across various industries.