Toward Rare-Earth-Free Permanent Magnets: A Combinatorial Approach Exploiting the Possibilities of Modeling, Shape Anisotropy in Elongated Nanoparticles, and Combinatorial Thin-Film Approach

摘要: The objective of the rare-earth free permanent magnets (REFREEPM) project is to develop a new generation high-performance (PMs) without rare earths. Our approach based on modeling using combinatorial together with micromagnetic and realization modeled systems (I) by novel production high-aspect-ratio (>5) nanostructrures (nanowires, nanorods, nanoflakes) exploiting magnetic shape anisotropy constituents that can be produced via chemical nanosynthesis polyol process or electrodeposition, which consolidated processes for PMs energy product in range 60 kJ/m3 < (BH)max < 160 kJ/m3 at room temperature, (II) high-throughput thin-film synthesis characterization identify promising candidate materials stabilized tetragonal hexagonal structure epitaxial growth selected substrates, under various conditions pressure, stoichiometry, temperature. In this article, we report progress so far phases.