Figure 3: Break-up results.
From: Silicon-in-silica spheres via axial thermal gradient in-fibre capillary instabilities
The spheres released from the fibre land to the bottom of the container while maintaining the location where they are released. Thus, the resulting chain of spheres mimics the axis of the original fibre (scale bar, 5 μm). Insets depict: (a) Silicon spheres embedded in a Silica fibre as observed using a confocal microscope in transmission mode (scale bar, 5 μm). (b) Enlarged section of the chain giving a sense of the sphere diameter uniformity (scale bar, 0.5 μm). (c) Individual sphere image giving a sense of the sphere shape quality. The dashed red line depicts the meridian along which seven (roughly equally spaced) 20 keV EBSD measurements were performed on a similar sphere. The beginning of the line and arrow tip refer to the location of the first and last measurement, respectively (scale bar, 100 nm). (d) Diffraction pattern averaged from five EBSD measurements (excluding edges) shows good agreement with diamond cubic silicon.
