Effect of annealing and Fe2O3 addition on the high temperature tribological behavior of the plasma sprayed yttria-stabilized zirconia coating

Jong Han Shin, Dae-Soon Lim, Hyo Sok Ahn

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The annealing process of plasma-sprayed 3 mol% yttria stabilized zirconia (3-YSZ) coatings with and without Fe2O3 addition was investigated to evaluate the high temperature tribological performance. The wear experiments were carried out on a ring-on-plate type reciprocating wear tester at selected temperatures within the range of 25-600 °C. In addition, plasma-sprayed zirconia-based coatings were annealed at 500 °C up to 10 cycles. The results show that annealing treatment decreases the wear rate due to the release of tensile residual stress. The stress relaxation significantly influences the maximum value of monoclinic intensity. The peak shifts to lower temperature and its values are reduced. The stress relaxation improves the tribological properties by reducing the influence of low temperature degradation. The addition of Fe2O3 to the 3-YSZ coating leads to a reduction of wear and friction. This decrease is believed to be the stabilization of the tetragonal phase and the increase of microhardness.

Original languageEnglish
Pages (from-to)403-410
Number of pages8
JournalSurface and Coatings Technology
Volume133-134
DOIs
Publication statusPublished - 2000 Nov 1

Fingerprint

Yttria stabilized zirconia
yttria-stabilized zirconia
Wear of materials
Annealing
Plasmas
coatings
Coatings
annealing
stress relaxation
Stress relaxation
Temperature
test equipment
tensile stress
zirconium oxides
Tensile stress
Zirconia
Microhardness
microhardness
residual stress
Residual stresses

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Condensed Matter Physics
  • Surfaces and Interfaces

Cite this

Effect of annealing and Fe2O3 addition on the high temperature tribological behavior of the plasma sprayed yttria-stabilized zirconia coating. / Shin, Jong Han; Lim, Dae-Soon; Ahn, Hyo Sok.

In: Surface and Coatings Technology, Vol. 133-134, 01.11.2000, p. 403-410.

Research output: Contribution to journalArticle

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