NGR Investigation of Grain-Boundary Diffusion in Poly- and Nanocrystalline Nb
The properties of grain boundary cores and adjacent areas in polycrystalline Nb manufactured by rolling with subsequent recrystallization annealing and nanocrystalline Nb obtained by high pressure torsion have been investigated by the Mössbauer emission spectroscopy on 119mSn nuclei.
J. Čermák and I. Stloukal
V. V. Popov et al., "NGR Investigation of Grain-Boundary Diffusion in Poly- and Nanocrystalline Nb", Defect and Diffusion Forum, Vol. 263, pp. 69-74, 2007