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Rare earths are an expensive and necessary component of strong permanent magnets. However, their use for this purpose can be optimised and thereby reduced. This has been demonstrated in computer simulations by a Special Research Program funded by the Austrian Science Fund FWF. The results, which will be presented in the US tomorrow, show that such magnets may contain local deformations in the crystal lattice of the material. These deformations are above all located at the boundary of material grains. According to the calculations of the St. Pölten University of Applied Sciences, the magnetic force of the material is weakened in these areas. This could be avoided by optimising the material structure, which would save resources by reducing the amount of rare earths required.

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Category: Science