New refining technique makes cheaper superconductors a reality

https://phys.org/news/2022-07-refining-technique-cheaper-superconductors-reality

"MgB2 95% pure, higher than ball milling method only 75%... refined microstructure and had a 35% improvement than other methods. All of this was achieved with only 30 minutes of ultrasonic treatment," says Prof. Miryala. This makes this new method of ultrasonication using distilled water extremely efficient at refining boron without having to use expensive materials. It brings down the cost of making MgB2 superconductors while also improving their magnetic characteristics"