Fig. 2: The differences between varied photopolymerization conditions. | Nature Communications

Fig. 2: The differences between varied photopolymerization conditions.

From: 3D printing of unsupported multi-scale and large-span ceramic via near-infrared assisted direct ink writing

Fig. 2

a The depth of the photocured slurry as a function of different NIR intensity at a constant exposure time of 3 s. The top inset is a schematic diagram of the curing depth test. The bottom inset is the actual cured objects obtained by curing for 3 s under different NIR light intensities. The curing depths (Cd) are the heights of the actual objects. The error bars represent the standard deviations. b Cross-section views of large-size filaments (2.45 mm nozzle) through UV-assisted printing and NIR-assisted printing. Optical images of the structures by c post-cured or d in situ cured by NIR light. The alumina slurry was extruded through a 0.6 mm diameter nozzle at a steady speed of 5 mm/s using a gas-driven load frame.

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