Ames Lab Develops AI Path to Rare-Earth-Free Magnets as U.S. Seeks Supply-Chain Security
Updated
Updated · Interesting Engineering · Jun 8
Ames Lab Develops AI Path to Rare-Earth-Free Magnets as U.S. Seeks Supply-Chain Security
3 articles · Updated · Interesting Engineering · Jun 8
Summary
Ames National Laboratory scientists built an AI-guided discovery method that identifies promising permanent-magnet materials without relying on rare-earth elements before they are synthesized in the lab.
The system combines physics-based modeling, high-throughput simulations and reasoning AI trained on experimental and calculated materials data, aiming to predict magnetization, demagnetization resistance, energy density and high-temperature performance.
Ames said the tools also screen for material cost and availability, extending the process from basic discovery to candidates that could be manufactured at industrial scale.
The work targets a strategic U.S. vulnerability: high dependence on other countries to refine rare earths used in EVs, medical imaging, defense systems and energy generation.
The findings were published in Materials Science and Engineering, underscoring a broader push to use AI to speed materials design while reducing critical-mineral dependence.
Will AI-discovered magnets be ready for the Pentagon's 2027 ban on Chinese rare earths?
Is the true challenge finding new magnets, or rebuilding the industry to actually make them at scale?
AI-Accelerated Discovery of Rare-Earth-Free Magnets: Transforming U.S. Security, Industry, and Sustainability
Overview
The discovery of next-generation rare-earth-free magnetic materials is being rapidly advanced by integrating artificial intelligence into the research process. Ames National Laboratory leads this effort by combining its expertise in theory, simulation, and proprietary data with cutting-edge AI tools. This AI-driven approach accelerates the entire critical materials pipeline, from discovery to industrial application, aiming to reduce America’s reliance on external sources and build a more resilient domestic supply chain. As a result, the accelerated discovery of advanced magnetic materials promises transformative impacts across key sectors such as energy, transportation, defense, and manufacturing.