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Three-dimensional morphology of nanoporous gold
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10.1063/1.2948902
/content/aip/journal/apl/92/25/10.1063/1.2948902
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/25/10.1063/1.2948902
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Figures

Image of FIG. 1.
FIG. 1.

(a) Three orthogonal crosscuts through the 3D reconstruction. The scale bar is . The two-dimensional image of the plane is the middle of 3D volume. The yellow cross lines represent the crosscut planes. (b) Binary images of (a) using the optimal cutoff threshold.

Image of FIG. 2.
FIG. 2.

3D tomographic reconstruction of nanoporous gold. (a) Magnified 3D image revealing the internal bicontinuous structure of nanoporous gold. (b) Fourier-transformed pattern showing the quasiperiodic feature of nanoporous gold. The inserted intensity profile was taken along the dash arrowhead in the Fourier-transform pattern.

Image of FIG. 3.
FIG. 3.

Quantitative length scale measurements. (a) Skeletal network of gold ligaments generated by using a 3D thinning algorithm. The insert shows a zoom-in image of the skeletal network with structural details. (b) Histograms of scaled probability density of interjunction path length of gold ligaments and nanopore channels. (c) Histograms of scaled probability density of the diameters of gold ligaments and nanopore channels. Both distributions prove that gold ligaments and nanopore channels are topologically equivalent.

Image of FIG. 4.
FIG. 4.

Normalized area fractions plotted against radius of curvature of gold ligaments. The red and blue lines represent negative and positive curvatures, respectively. The good agreement of the both lines indicates the net zero curvature of nanoporous gold by dealloying on average. The dash lines indicate the peak value at and the median curvature at .

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/content/aip/journal/apl/92/25/10.1063/1.2948902
2008-06-23
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Three-dimensional morphology of nanoporous gold
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/25/10.1063/1.2948902
10.1063/1.2948902
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