Superconductivity at –23 degrees Celsius?

Superconductivity at –23 degrees Celsius?

Researchers at the University of Chicago have managed to beat the previous world record for high-temperature superconductivity (HTSC) by 50K. This new material reaches superconductivity at –23 °C (under very high pressure conditions). by Thomas Scherer @ elektormagazine.com

Even though the material needs to be under extreme pressure at this temperature for superconductivity to occur, Vitali Prakapenka and Eran Greenberg of the ANL (Argonne National Laboratory) see this as a significant step towards superconductivity at room temperature.

Superconductivity and energy saving

The use of Superconducting electrical conductors which do not need such extremely low temperatures to become effective would allow the design of a new generation of super-efficient wind turbines and slash costs for other applications such as maglev trains, MRI scanners and particle accelerators. Keeping these superconductors at their superconducting temperature uses so much energy that the practical application is almost always uneconomical.

The previous world record is –73 °C but this material is not ductile and cannot therefore be drawn into flexible wires to make windings for electric motors or electromagnets. At the moment this is also not possible with this latest superconducting compound, but the researchers hope that practical use could be made possible in the future. Practical superconducting materials in use today only work at –240 °C.

… read more

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Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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