Paper Title:
Tribological Property of Plasma Sprayed TiO2 Coating
  Abstract

The sliding wear property of plasma sprayed TiO2 coatings with porosity of 4.2% and 5.4% mating against silicon nitride ball were comparatively investigated with a reciprocating tribometer under dry conditions. The results indicate that the wear resistance of the TiO2 coating with lower porosity is superior, which is attributed to its homogeneous microstructure and improved microhardness. The morphologies of the wear tracks of the two TiO2 coatings, as well as wear debris reveal the pore is the main location wear occur. The coefficients of friction of the two TiO2 coatings decrease with the increase of applied load, while the wear rates increase, which is attributed to the difference of the dependence of microhardness on load between the coating and the Si3N4 ball. No apparent dependence of wear resistance on sliding speed was found on these two coatings.

  Info
Periodical
Key Engineering Materials (Volumes 317-318)
Edited by
T. Ohji, T. Sekino and K. Niihara
Pages
377-380
DOI
10.4028/www.scientific.net/KEM.317-318.377
Citation
S. W. Lee, H. Du, H. Chen, B. Y. Hur, "Tribological Property of Plasma Sprayed TiO2 Coating", Key Engineering Materials, Vols. 317-318, pp. 377-380, 2006
Online since
August 2006
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Price
$32.00
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