Jeon, Hansol Kang, Na-Ri Gwak, Eun-Ji Jang, Jae-il Han, Heung Nam Hwang, Jun Yeon Lee, Sukbin Kim, Ju-Young 2024-01-20T01:01:58Z 2024-01-20T01:01:58Z 2021-09-04 2017-08 1359-6462 https://pubs.kist.re.kr/handle/201004/122489 Nanoporous gold (np-Au) samples of ligament sizes 68.6, 248.6, 462.9, and 710.9 nm are prepared by heat treatment, and representative volumes are reconstructed by focused ion beam (FIB) tomography. The increase in relative density by thermal coarsening is not pronounced. We analyze the distribution of ligament size, surface-to volume ratio, and scaled connectivity density for coarsened np-Au, revealing that np-Au coarsens in a self-similar way. The measured activation energy for thermal coarsening supports that it is accomplished by surface diffusion of Au. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. English PERGAMON-ELSEVIER SCIENCE LTD MECHANICAL-BEHAVIOR SCALING RELATIONS YIELD STRENGTH EVOLUTION QUANTIFICATION CONNECTIVITY MORPHOLOGY DIFFUSION BONE AU Self-similarity in the structure of coarsened nanoporous gold Article 10.1016/j.scriptamat.2017.05.009 1 SCRIPTA MATERIALIA, v.137, pp.46 - 49 SCRIPTA MATERIALIA 137 46 49 scie scopus 000403993300011 2-s2.0-85019090149 Nanoscience & Nanotechnology Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Science & Technology - Other Topics Materials Science Metallurgy & Metallurgical Engineering Article MECHANICAL-BEHAVIOR SCALING RELATIONS YIELD STRENGTH EVOLUTION QUANTIFICATION CONNECTIVITY MORPHOLOGY DIFFUSION BONE AU Annealing 3D reconstruction Focused ion beam (FIB) Cellular materials Nanoporous gold