The magnetic properties of Fe3O4–Fe3 – xTixO4 composites synthesized by various methods were simulated
based on the model of an ensemble of magnetostatically interacting particles. The results are in good agreement with the hysteresis characteristics of the samples calculated earlier in the framework of the model of
chemically heterogeneous two-phase particles. It is shown that the used approach is also applicable to the
samples consisting mainly of superparamagnetic particles in which the saturation remanent magnetization is
provided by the particles blocked due to the magnetostatic interaction.