Small-angle neutron scattering study of dislocations in deformed single-crystal copper

Small-angle neutron scattering measurements of deformed single-crystal copper have been performed over a wave-vector transfer range of 0.0655≤Q≤1.32 nm^-1. The measurements included four samples deformed in compression at room temperature. The response of the reference sample followed the Porod law at lowest Q and was, at least in part, the result of scattering from the external surfaces of the sample. The radially averaged net cross sections were found to increase with increasing deformation, while the power-law exponent decreased with increasing deformation.