Surface integrity study of ZrO2 ceramic for ultrasonic vibration-assisted polishing processing.

Due to the unique physical property, the surface integrity is a critical indicator to characterize the processing quality for hard and brittle materials. In this study, the ZrO 2 ceramic is taken as a representative to investigate the surface integrity during ultrasonic vibration-assisted polishing (UVAP) processing. The effects of processing parameters on surface micro-morphology, surface hardness, scratch property and residual stress are analyzed by UVAP orthogonal experiments. The experiment results indicate that the UVAP processing can effectively improve the surface integrity of the ZrO 2 ceramic. The research results are of great significance in guiding the UVAP controlled processing of hard and brittle materials. [ABSTRACT FROM AUTHOR]