displays the SEM micrographs of fresh fracture surface
of the laminated multilayered ceramics at various amplified
factors. It is clearly shown that the well developed microstructure with apparent grain boundary and uniform grain sizes
about 10mm was obtained. As can be seen from the cross
section, the laminated multilayered ceramics reveal an acceptable dense microstructure which can be certified by the
dielectric loss value below. Besides, the obvious transcrystalline rupture mode in laminated samples also proves satisfying
mechanical strength in the composite structure