fig2

Figure 2. (A) The relationship between relative density and LED, and the representative SEM micrographs at (B) low (0.17 J/mm), (C) mid (0.25 /mm), and (D) high (0.88 J/mm) LEDs. Arrows in black highlight the defects in the built parts, the build direction is from bottom to top, and the error bars in (A) represent the standard error of the mean.