Fracture toughness of ZrO2‐toughened alumina could he increased by macroscopic interfaces, such as those existing in laminated composites. In this work, tape casting was used to produce A/A or A/B laminates, where A and B can be Al2O3, Al2O3/5 vol% ZrO2, and Al2O3/l0 vol% ZrO2. An increase of toughness is observed, even in the Al2O3/Al2O3 laminates.
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