Distribution & Access For Publication Downloads News About Us Contact Us
Paper Titles
Thermal Conductivities of LaPO4/Al2O3 Composites Fabricated by SPS
p.123
Preparation and Antibacterial Effect of Silver-Carrying Nano-Hydroxyapatite Powder
p.126
Thermal Shock Behavior of Nd-Doped α-Sialon Ceramics
p.130
Effect of Silica Coating on the Thermal Stability of Tantalum Based Nitrides Pigments
p.134
Influences of SrSO4 and Ag on High Temperature Tribological Properties of Spark-Plasma-Sintered ZrO2(Y2O3)-Al2O3 Composites
p.138
Liquid Oxide Flow during Oxidation of Zirconium Diboride-Silicon Carbide Ultra High Temperature Ceramics
p.144
Nonlinear Elastic Deformation of MAX Phases
p.149
Finite Element Analysis on Temperature-Stress of Permeable Refractory Ceramic under Working Process in Ladle
p.154
Convective Heat Transfer Steady Thermal Stress in a ZrO2/FGM/Ti-6Al-4V Composite ECBF Plate with Temperature-Dependent Material Properties
p.158

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

Article Preview

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.

You might also be interested in these eBooks
High-Performance Ceramics VI View Preview

Info:

Periodical:

Key Engineering Materials (Volumes 434-435)

Pages:

138-143

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.434-435.138

Citation:

Cite this paper

Online since:

March 2010

Authors:

Yu Feng Li, Jia Hu Ouyang, Ya Ming Wang, Yu Zhou, Takashi Murakami, Shinya Sasaki

Keywords:

Self-Lubricating Composite, SrSO4, ZrO2(Y2O3)-Al2O3 Ceramics

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

References

[1] M. Allam: J. Mater. Sci. Vol. 26 (1991), p.3977.

Google Scholar

[2] H. E. Sliney: Tribol. Int. Vol. 15 (1982), p.303.

Google Scholar

[3] Y. Jin, K. Kato and N. Umehara: Tribol. Lett. Vol. 4 (1998), p.243.

Google Scholar

[4] C. Dellacorte and J. A. Laskowski: Tribol. T. Vol. 40 (1997), p.163.

Google Scholar

[5] J. H. Ouyang, S. Sasaki, T. Murakami and K. Umeda: Wear Vol. 258 (2005), p.1444.

Google Scholar

[6] J. H. Ouyang, S. Sasaki, T. Murakami, K. Umeda, Mater. Sci. Eng. A 386 (2004) 234-243.

Google Scholar

[7] T. Murakami, J. H. Ouyang, S. Sasaki, et al.: Tribol. Int. Vol. 40 (2007), p.246.

Google Scholar

[8] J. H. Ouyang, S. Sasaki, T. Murakami and K. Umeda: Ceram. Int. Vol. 31 (2005), p.543.

Google Scholar

[9] Y. F. Li, J. H. Ouyang, Y. Zhou, et al.: Mater. Lett. Vol. 62 (2008), p.4417.

Google Scholar

[10] T. Murakami, J. H. Ouyang, S. Sasaki, et al.: Mater. Trans. Vol. 46 (2005), p.182.

Google Scholar

Scientific.Net is a registered brand of Trans Tech Publications Ltd
© 2024 by Trans Tech Publications Ltd. All Rights Reserved