Fig. 2: Directional dark-field image of carbon fibers. | Communications Physics

Fig. 2: Directional dark-field image of carbon fibers.

From: Characterization of oriented microstructures through anisotropic small-angle scattering by 2D neutron dark-field imaging

Fig. 2

a Photo of the measured carbon fiber sample within the field of view (FoV) oriented in Y-shaped pie chart angular displacement. The inset shows the sketch of the fibers orientation. Scale bar, 2 mm. b Scanning electron microscopy (SEM) image of the carbon fibers used in the experiment. Scale bar 5 μm. c Attenuation image. d Directional dark-field image DFIdirectional. The hue saturation value (HSV) color wheel refers to the actual fibers orientation. A median filter with 3 × 3 kernel has been applied for visual representations. Panels c and d share the same scale bar, 2 mm, and have been measured at 4.1 Å, and at an autocorrelation length ξ = 0.3 μm.

Back to article page