Abstract
In this communication, the cold sintering process was applied to benefit the green body compaction of 8 mol%Y2O3-stablized ZrO2 ceramics (8Y-YSZ). Compared to conventionally processed ceramics, an enhanced densification behavior was demonstrated in cold sintering related ones following a second step conventional sintering process. Dense ceramics up to ∼96% of theoretical density were achieved after sintering at 1200°C. The resulted ceramics demonstrated a fine microstructure with a grain size ∼200nm. A mechanical performance with a Vickers hardness of 13.6GPa and a fracture toughness of 2.85MPam1/2 was also reported.
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