CritMag

Permanent magnets (PMs) have critical applications in wind power generation, widely employed in Portugal. The performance of PM materials relies heavily on the presence of rare-earth elements (REEs), however, their status as critical raw materials (CRMs) calls for new approaches in developing alternative PMs that present minimal content/ absence of CRMs. The targeted breakthrough of the CritMag is to establish a new synthesis methodology for the fabrication of REE-free high-performance PMs. This objective is mainly achieved through the engineering of nanostructures with strong magnetic and shape anisotropy. The fabrication is based on our know-how in large-scale synthesis of colloidal magnetic nanoparticles with excellent magnetic properties. The method is well suited for the implementation of up-scalable and cost-efficient fabrication of REE-free PMs. Our targeted application is an electric energy generation device and we will manufacture a prototype generator using the CritMag PMs.