Dynamic pseudoplastic behavior of laminated ceramics with soft and hard interbedded dense layers

Laminated ZrO-Zr₂CN/Si₃N₄ ceramics with soft and hard interbedded dense layers were prepared via tape casting and reactive hot pressing. The dynamic compressive behavior was investigated at various high strain rates ranging from 1000 to 5000 s^-1 using a split Hopkinson bar, and the dynamic loading pattern was analyzed. With increasing the strain rate, the dynamic strength obtained a peak value, while the failure strain increased continuous. The compressive stress-strain curves exhibited universal four deformation regions, including inelastic deformation region, rapid loading region, pseudoplastic deformation region and failure region. The dynamic pseudoplastic behavior of the laminated ceramics was similar to that of some metal matrix composites.