Crystallographic orientations of various samples of polycrystalline lead sc
andium tantalate, PbzScTaO6, abbreviated PST, were investigated by the tech
nique of backscatter Kikuchi diffraction pattern (BKDP) in the scanning ele
ctron microscope (SEM). The samples were processed under different conditio
ns. Several hundreds of crystal orientations in the bulk ceramics were exam
ined by BKDPs and the results were plotted in microtexture pole- and invers
e pole-figures for determination of the average and local preferred orienta
tions. These results were compared with crystallographic information obtain
ed using X-ray diffraction (XRD). In addition, local textures in certain se
lected regions in the PST ceramics were also determined.