Reconstructing a nanoporous metal in three dimensions:: An electron tomography study of dealloyed gold leaf

被引：150

作者：

Roesner, H.

Parida, S.

Kramer, D.

Volkert, C. A.

Weissmueller, J.

机构：

[1] Forschungszentrum Karlsruhe GmbH Helmholtz Gemein, Inst Nanotechnol, D-76021 Karlsruhe, Germany

[2] Forschungszentrum Karlsruhe GmbH Helmholtz Gemein, Inst Mat Forsch 2, D-76021 Karlsruhe, Germany

[3] Univ Saarland, D-6600 Saarbrucken, Germany

来源：

ADVANCED ENGINEERING MATERIALS | 2007年 / 9卷 / 07期

关键词：

D O I：

10.1002/adem.200700063

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanoporous gold, prepared by electrochemical dissolution of Ag from commercial white gold leaf, was investigated by HAADF-STEM tomography. The three-dimensional reconstruction shows a fully connected network structure composed of single-crystalline gold ligaments and pores. We have applied stereological analyses to characterize the pore volume fraction, the specific surface area, and the mean surface curvature. The structure exhibits broad distributions in pore as well as ligament size, a convex surface and a significant microstructural anisotropy. The ligaments contain encased voids which are believed to form during the dissolution process. © 2007 WILEY-VCH Verlag GmbH & Co. KGaA.

引用

页码：535 / 541

页数：7

共 36 条

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