Key Takeaways
1. A team from China set a world record by creating a stable magnetic field of 35.5 tesla, significantly stronger than the Earth’s magnetic field.
2. The record-breaking magnet was developed by researchers at ASIPP in Hefei, collaborating with Tsinghua University and others.
3. The new design combines high-temperature and low-temperature superconducting magnets to overcome technical challenges.
4. This achievement has important implications for nuclear fusion and could advance technologies like magnetic levitation and electromagnetic propulsion.
5. The research team successfully sourced all necessary superconducting materials domestically, ensuring a reliable supply chain.
A group of scientists from China has broken a world record by producing a stable magnetic field measuring 35.5 tesla (351,000 gauss) with the help of a fully superconducting magnet. This significant achievement was shared by the Institute of Plasma Physics under the Chinese Academy of Sciences and marks a vital step forward in advanced magnet technology. For context, this magnetic field is an astounding 700,000 times stronger than the Earth’s magnetic field, which is about 0.5 gauss.
New Magnet Development
The record-setting magnet was created by researchers at ASIPP in Hefei, working together with Tsinghua University and other organizations. This new record surpasses the earlier one of 32.35 tesla, which was established back in 2019. The magnet successfully operated at its maximum capacity for 30 minutes before it had to be demagnetized, showing remarkable stability throughout the process.
Innovative Design
To reach this goal, the research team employed a hybrid design that integrates a high-temperature superconducting coil within a traditional low-temperature superconducting magnet. Liu Fang, one of the researchers, mentioned that this method helped them tackle significant technical obstacles related to extreme stress and various magnetic fields.
The implications of this discovery are especially relevant for nuclear fusion, where such powerful magnets are essential for creating a “magnetic cage” that can contain the extremely hot plasma necessary for maintaining a fusion reaction. Additionally, this technology could lead to advancements in magnetic levitation (maglev), improved electromagnetic propulsion systems, and much more.
Domestic Material Sourcing
Moreover, the institute revealed it has successfully localized all the superconducting materials and systems required, ensuring a domestic supply chain for all essential components.
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