  Exchange-coupled nanocomposites are considered as the most promising
materials for production of high-energy performance permanent magnets, which
can exceed neodymium ones in terms of energy product. In this work,
micromagnetic simulations of L10-FeNi/SmCo5 composites based on the initially
anisotropic structure of nanorods array were performed. Texturing effect on
magnetic properties was investigated. It was revealed that even 30 % of
anisotropy axes misalignment of grains in L10-FeNi phase would lead to only 10
% drop of coercivity. To maximize magnetic properties of the composites,
parameters of microstructure were optimized for 120 x 120 array of interacting
nanorods and were found to be 40 nm nanorod diameter and 12-20 nm interrod
distance. The estimated diameter of nanorods and the packing density of the
array provide energy product values of 149 kJ m-3. Influence of interrod
distance on energy product values was explored. Approaches for production of
exchange-coupled composites based on anisotropic nanostructures were proposed.
