Paper Title:
Spark Plasma Sintered ZrO2(Y2O3)-Al2O3-SrSO4 Self-Lubricating Nanocomposites for High Temperature Tribological Applications
  Abstract

Spark plasma sintering is employed to synthesize a variety of self-lubricating ZrO2(Y2O3)- Al2O3 matrix nanocomposites by tailoring the chemical compositions and by adjusting the sintering parameters. Different additives are incorporated into the nanocrystalline ceramics of ZrO2(Y2O3)- 20wt.% Al2O3 to evaluate their potentials as effective high temperature solid lubricants from room temperature to 800oC by using a high temperature friction and wear tester in sliding against alumina ball in air. The density, microstructure, hardness and tribological properties of the sintered nanocomposites have been investigated, as contrasted with the unmodified ceramics, to obtain a better understanding of lubrication mechanisms over a wide temperature range. The ZrO2(Y2O3)-Al2O3-SrSO4 composite exhibits steady-state friction coefficients of less than 0.2 and wear rates in the order of 10-6 mm3/Nm over a broad temperature range from room temperature to 800oC.

  Info
Periodical
Key Engineering Materials (Volumes 336-338)
Edited by
Wei Pan and Jianghong Gong
Pages
1429-1432
DOI
10.4028/www.scientific.net/KEM.336-338.1429
Citation
J. H. Ouyang, T. Murakami, S. Sasaki, Y. Zhou, D. C. Jia, Y. M. Wang, "Spark Plasma Sintered ZrO2(Y2O3)-Al2O3-SrSO4 Self-Lubricating Nanocomposites for High Temperature Tribological Applications", Key Engineering Materials, Vols. 336-338, pp. 1429-1432, 2007
Online since
April 2007
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: Jing Pei, Zhen Xing Yue, Fei Zhao, Zhi Lun Gui, Long Tu Li
Abstract:The nano-sized Ba(Zr0.2Ti0.8)O3 powder was prepared by citrate sol-gel method. The crystal structure and the particle size of the powder...
76
Authors: Guang Hui Li, Zhang Lian Hong, Li Xia Peng, Min Quan Wang
Abstract:XRD, SEM, bulk density and dielectric properties measurements were used to investigate the effect of TiO2 nanopowder substitution for...
228
Authors: Uraiwan Intatha, Sukum Eitssayeam, Kamonpan Pengpat, Gobwute Rujijanagul, Tawee Tunkasiri
Abstract:In this work, preparation conditions and effect of ZrO2 doped BaFe0.5Nb0.5O3 ceramics were studied. Relationship between structure and...
889
Authors: Yong Xing Tong, Li Qin Wang, Le Gu, Bo Peng
Abstract:The friction and wear behavior of Si3N4, SiC and ZrO2 sliding against M50 bearing steel under vacuum...
973
Authors: Yun Xia Zhang, Jun Jie Hao, Jun Ting Qi
Building Materials
Abstract:In this paper, the effect of Nb2O5 on the microstructure and dielectric properties of BaTiO3-based ceramics...
1108