X-ray nanotomography characterizations of gold foams

被引：2

作者：

Li, Zhaoguo ^{[1
]}

Luo, Jiangshan ^{[1
]}

Tan, Xiulan ^{[1
]}

Fang, Qi ^{[1
]}

Zeng, Yong ^{[1
]}

Zhou, Minjie ^{[1
]}

Wu, Weidong ^{[1
]}

Zhang, Jicheng ^{[1
]}

机构：

[1] China Acad Engn Phys, Res Ctr Laser Fus, Mianyang 621900, Peoples R China

来源：

MATERIALS LETTERS | 2017年 / 205卷

基金：

中国国家自然科学基金;

关键词：

X-ray nanotomography; Gold foams; Microstructures; Structure characterization; TOMOGRAPHY;

D O I：

10.1016/j.matlet.2017.06.056

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Observation of the three-dimensional interior microstructure of low-density gold foams is very important for the optimization of their physical and chemical properties. We report on the threedimensional internal microstructural imaging of gold foams by using X-ray computed tomography with a resolution of 50 nm. The gold foams are synthesized by the chemical dealloying method. By using focused ion beam milling technology, a foam micro-cylinder with a diameter of approximately 55 lm is prepared. The tomographical data sets of the micro-cylinder foam are collected in the angle range of +/-degrees 90 at a photon energy of 8 keV. The data sets are then used to reconstruct the three-dimensional microstructure of the gold foams. The three-dimensional reconstruction information obtained from computed tomography provides an intuitive understanding of the gold foam structure. (C) 2017 Published by Elsevier B.V.

引用

页码：215 / 218

页数：4

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