Preparation process, microstructure, and mechanical properties of nano-eutectic structured Al2O3-ZrO2 composite coating (IMAGE)

Tsinghua University Press

Preparation process, microstructure, and mechanical properties of nano-eutectic structured Al2O3-ZrO2 composite coating

Caption

The nano-eutectic Al2O3-ZrO2 powder and the Al2O3-ZrO2 composite coating were prepared by combustion synthesis-air atomization and atmospheric plasma spraying, respectively. Through cross-sectional BSE and BF-TEM imaging, the bimodal microstructure of the coating and nano-sized fibrous/lamellar eutectics in the PM region were confirmed. Moreover, the microhardness of the coating shows a bimodal distribution, and multiple toughening mechanisms exist within the PM region.

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Journal of Advanced Ceramics, Tsinghua University Press

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