Mechanical and wear characteristic of Y-TZP/Al2O3 nanocomposites
Abstract
Purpose
The purpose of this paper is to investigate the mechanical and wear properties of Y-TZP/Al2O3 nanocomposites.
Design/methodology/approach
In this paper, the Y-TZP/Al2O3 nanocomposites with different crystal-sizes are designed and fabricated by hot pressing. Their mechanical and anti-wear properties are investigated, and the wear mechanism is studied by scanning electron microscopy, X-ray diffraction, and transmission electron microscope and so on.
Findings
The experimental results indicate that the wear of Y-TZP/Al2O3 nanocomposites can be divided into two regimes: mild wear regime and normal wear regime. In mild wear regimes, the relationship between wear resistance (ɛ) and hardness (H) of the material can be described as: ɛ−1∝H−1. The corresponding relationship among wear resistance, hardness and toughness (KIC) of the material in normal wear regime can be described as: ɛ−1∝H−1K IC −4.
Originality/value
In this paper, the mechanical and anti-wear properties of Y-TZP/Al2O3 nanocomposites are systematically investigated. The relation between mechanical properties and wear resistance is revealed.
Keywords
Acknowledgements
This study was supported by the National Natural Science Foundation of China (Grant No. 51175493), the Program of the Light of the Chinese Academy of Sciences in China's Western Region (2010), and the National Key Basic Research Program of China (No. 2011CB706603).
Citation
Hu, T., Zhang, Y. and Hu, L. (2014), "Mechanical and wear characteristic of Y-TZP/Al2O3 nanocomposites", Industrial Lubrication and Tribology, Vol. 66 No. 2, pp. 209-214. https://doi.org/10.1108/ILT-08-2011-0059
Publisher
:Emerald Group Publishing Limited
Copyright © 2014, Emerald Group Publishing Limited