Lee, Sung Bo Yoo, Seung Jo Choi, Kwangdeok Byun, Ji Young Kim, Chang-Yeon 2024-01-19T18:31:27Z 2024-01-19T18:31:27Z 2021-09-05 2020-01 1044-5803 https://pubs.kist.re.kr/handle/201004/119134 High-resolution electron microscopy is used to elucidate the structural transition of {1 1 2} incoherent twin boundaries under a driving force for migration in an Au nanocrystalline film. Initially flat {1 1 2} twin boundaries bounding island and peninsula grains in the film tend to become smoothly curved, corresponding to the atomically-roughened structure, after annealing at an elevated temperature of 300 degrees C. Previous studies have indicated that the {1 1 2} twin boundaries remain atomically sharp at least at 300 degrees C, which thus strongly suggests that the boundaries undergo roughening transition by a driving force for migration, a signature of kinetic roughening. English ELSEVIER SCIENCE INC GRAIN-BOUNDARY CRYSTAL GROWTH EQUILIBRIUM TRANSITION STRENGTH METALS MOTION GOLD Migration and roughening of Sigma 3{112} incoherent twin boundary in an Au nanocrystalline film Article 10.1016/j.matchar.2019.110063 1 MATERIALS CHARACTERIZATION, v.159 MATERIALS CHARACTERIZATION 159 scie scopus 000509819000020 2-s2.0-85076469852 Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Materials Science, Characterization & Testing Materials Science Metallurgy & Metallurgical Engineering Article GRAIN-BOUNDARY CRYSTAL GROWTH EQUILIBRIUM TRANSITION STRENGTH METALS MOTION GOLD {112} incoherent twin boundary Grain-boundary migration Kinetic roughening Au Nanocrystalline film