Prakt. Met. Sonderband 52 (2018) 251 
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Fig. 2: Optical and SEM micrographs of polished cross-section showing the microstructure 
sto be direct] of 3D printed polymer bonded magnets; (a, b) Sample A - 300 um layer height and 90 
fc shear 0% wt.% NdFeB: (c, d) Sample B - 100 um layer height and 90 wt.% NdFeB; (e, f) Sample C - 
and hence 1 100 um layer height and 92 wt.% NdFeB 
on technique 
cally shear The micrographs made with optical microscopy at smaller magnifications (fig. 2a, ¢,) reveal 
if goer at also some degree of microstructure anisotropy which is a consequence of plate-like 
geometry of Nd-Fe-B ribbons and the conditions of melt flow during 3D printing. 
a Le 
ec .