Galfenol/polyurethane Magnetoactive composites study by small angle scattering of resonant synchrotron radiation.

We applied the small angle nuclear scattering of synchrotron radiation (SANRS) to investigate anisotropic Galfenol-polyurethane composite comprising Galfenol grains with Fe⁵⁷ nuclei arranged in the parallel chains surrounded by the non-resonant polymer substance. We aimed to insight into the individual magnetic structure of the particles and particles/polymer interface using the ability to align the synchrotron radiation beam directly on the particle by reducing the analyzed volume and resonant thickness of the composite sample. The size of the studied particles was about 3–7 μm. The results of precise analysis of the rocking curves for electron and nuclear response let to support explanation of the functional composite properties. [ABSTRACT FROM AUTHOR]