… of the interfaces in modifying defect behavior is unclear. … mobility of defects and defect
clusters at grain boundaries in Cu. We find that mobilities vary significantly with boundary structure …

… The structural relaxation of a high-angle grain boundary at … The system studied was a 2=5
(36.9'), [001] tilt boundary with … an extrinsic vacancy, the boundary structure was found to be …

… grain boundary mobility. Third, grain boundary mobility is influenced by dopant-defect …
dopants have a tendency to markedly enhance grain boundary mobility, probably due to the …

… grain boundary structure is most strongly influenced by presence of stacking faults. Under an
… For this reason the grain boundary mobilities and stacking fault energies are directly related…

… of grain boundaries on electron trapping and mobility. We consider a model Σ5 (210)[001] tilt
grain boundary … To investigate the interaction of electrons with the grain boundary defect we …

… and dynamics of four types of grain boundaries (GBs) in … |8 GBs possess a much higher
migration mobility than the S5|7 … due to the change in defect configurations with temperature. Our …

… of grain size, and the microstructure studied by SEM and HREM. In spite of the very clean
grain boundaries, the grain boundary … , while it increased with decreasing grain size. The low …

… For most irradiation conditions of interest, temperatures are sufficiently high that point defects
are mobile on relevant time scales. Thus, as shown in the previous section, while GBs in …

… Once this is put on a firm foundation, it will be much easier to account for such complicated
extrinsic effects such as those associated with impurities, defect absorption/generation, and …

… The effects of the dopants on the boundary mobility are discussed in terms of the defect
chemistry and the space-charge concept. © ]998 Published by Elsevier Science Limited. All …