Experimental Investigation on Fretting Wear Behavior of Piezoceramics under Sphere-on-Flat Contact

Abstract

This article presents an experimental investigation on the fretting wear behavior of piezoceramics P51, PSnN5, and PLiS51 against an Si₃N₄ ceramic ball under air condition. A sphere-on-flat contact pattern is used as the contact model. The influence of displacement amplitude, frequency, and normal force is taken into account. After each test, friction logs are used to determine the contact interface state. A 3D topography measurement instrument is applied to measure the surface morphology and wear volume. Fretting wear on piezoelectric ceramics under different normal loads, frequencies, and displacement amplitudes are summarized through the collection and analysis of experimental data. It is found that, among the three piezoceramics, PLiS51 has the best wear resistance at higher displacement amplitude and frequency and P51 has the best wear resistance at greater normal force.

Keywords:

• Piezoceramics
• fretting wear
• fretting region
• friction logs
• wear volume

Additional information

Funding

The authors acknowledge financial support of this study from the National Natural Science Foundation of China (Nos. 11725207 and 11902217), the China Postdoctoral Science Foundation (No. 2019M650046), and the Postdoctoral Innovative Talents Support Program (No. BX20190234).