AI Designs Radical Magnet Free of Rare-Earth Metals in Just 3 Months

https://www.sciencealert.com/ai-designs-radical-magnet-free-of-rare-earth-metals-in-just-3-months

We urgently need to move away from fossil fuels, but electric vehicles and other green technology can put their own pressures on the environment. That pressure could be eased with a new magnet design, free from rare-earth metals, that was built with AI in just three months.

Rare-earth metals are essential components in modern-day gadgets and electric tech - including cars, wind turbines, and solar panels - but getting them out of the ground costs a lot in terms of money, energy, and environmental impact.

As a result, technology that doesn't use these metals can help us transition towards a greener future more quickly. Enter UK company Materials Nexus, which has used its bespoke AI platform to create MagNex, a permanent magnet requiring no rare-earth metals.

This isn't the first such magnet to be developed, but discovering these materials typically requires a lot of trial and error and can take decades. The use of AI sped everything up by approximately 200 times - in just three months, it had designed, synthesized, and tested the new magnet.

The AI works by analysing over 100 million compositions of possible rare-earth-free magnets, weighing up not only the potential performance but also supply chain security, cost to manufacture, and environmental issues.

"AI-powered materials design will impact not only magnetics but also the entire field of materials science," says physicist Jonathan Bean, the CEO of Materials Nexus.

"We have now identified a scalable method for designing new materials for all kinds of industrial needs."

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