Fig. 6: Control of the wall microstructure.
From: Ultrafast 3D printing with submicrometer features using electrostatic jet deflection

SEM micrograph showing the effect of jet wetness/viscosity upon arrival to the substrate on the microstructure of a printed wall: a PEO wall obtained by stacking dry-arriving fiber layers, where the different PEO layers are clearly distinguishable. b Compact PEO wall obtained by stacking wet-arriving fiber. c PEO-Ag wall produced from dry-arriving fiber, where layers and pores between them are clearly visible. d Compact PEO-Ag wall produced from wet-arriving fiber. All scale bars are 1 µm.