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A numerical algorithm for predicting the optimal conditions for the effective alignment of magnetic particles in dense powders during the compactization process using an externally applied field is presented. This task is especially important for the development of permanent magnets due to the fact that the alignment of anisotropy axes of nanocomposite grains increases both remanence and coercivity of magnetic materials. In contrast to previously known methods where the magnetic moment of each particle is assumed to be “fixed” with respect to the particle itself, the approach considers the (field‐dependent) deviation of this moment from the particle anisotropy axis that occurs even for magnetically “hard” particles possessing a strong mechanical contact. It is shown that this deviation leads to the existence of the optimal value of the applied field for which the particle orientation (or alignment) time is minimal. The influence of the external pressure and internal mechanical friction on the details of the compactization/orientation process is also studied.

Mechanical Orientation of Fine Magnetic Particles in Powders by an External Magnetic Field: Simulation‐Based Optimization