Paper Title:
Influences of SrSO4 and Ag on High Temperature Tribological Properties of Spark-Plasma-Sintered ZrO2(Y2O3)-Al2O3 Composites
  Abstract

ZrO2(Y2O3)-Al2O3-SrSO4 nanocomposites incorporated with and without Ag addition have been fabricated by spark plasma sintering (SPS) to evaluate their friction and wear properties in sliding against alumina ball from room temperature to 600 oC. X-ray diffraction (XRD), scanning electron microscope (SEM) and Raman spectroscopy were used to investigate microstructure and self-lubrication mechanisms of nanocomposites after wear tests at different temperatures. The ZrO2(Y2O3)-Al2O3-SrSO4 nanocomposite exhibits low and stable friction coefficients of 0.2 to 0.3 and wear rates in the order of 10-6 mm3/Nm at high temperatures. With the addition of Ag into the composite, the intermediate temperature lubricating property is greatly improved. Plastic deformation of SrSO4 and sliver during sliding plays an important role in formation of lubricating films on worn surfaces of nanocomposites. These lubricating films reduce the friction and wear of the ZrO2(Y2O3)-Al2O3 matrix composites.

  Info
Periodical
Key Engineering Materials (Volumes 434-435)
Edited by
Wei Pan and Jianghong Gong
Pages
138-143
DOI
10.4028/www.scientific.net/KEM.434-435.138
Citation
Y. F. Li, J. H. Ouyang, Y. M. Wang, Y. Zhou, T. Murakami, S. Sasaki, "Influences of SrSO4 and Ag on High Temperature Tribological Properties of Spark-Plasma-Sintered ZrO2(Y2O3)-Al2O3 Composites", Key Engineering Materials, Vols. 434-435, pp. 138-143, 2010
Online since
March 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Y.Z. Zhan, Guo Ding Zhang
227
Authors: Jung Ho Ahn, Yan Li Wang, Yong Jin Kim, Sung Jin Kim, Hyung Sik Chung
Abstract:We have synthesized multi-wall carbon nanotube (MWCNT)-reinforced Al matrix composites. The Al/MWCNT composite powders were prepared by ball...
860
Authors: Tao Jiang, Hai Yun Jin, Zhi Hao Jin, Jian Feng Yang, Guan Jun Qiao
Abstract:The machinable B4C/BN ceramics composites were fabricated by hot-pressing sintering process at 1850oC for 1h under the pressure of 30MPa....
53
Authors: Yan Jun Wang, Bin Wang, Li Ying Yang, Shou Ren Wang
Abstract:High speed steel based ceramic preforms with three-dimensionally interpenetrated micropores were fabricated using the mixture of TiH2, CaCO3...
625
Authors: Shi Zhong Wei, Liu Jie Xu, Guo Shang Zhang, Ji Wen Li, Bao Zhu Dai
Chapter 3: Advanced Manufacturing Technology
Abstract:Mo-based composites with Al2O3 particles were developed in order to enhance the wear resistance of molybdenum alloys....
467