Effect of annealing temperature on the tribological behavior of ZnO films prepared by sol-gel method

Li Yu Lin, Dae Eun Kim

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

The tribological behavior of zinc oxide (ZnO) films grown on glass and silicon (100) substrates by sol-gel method was investigated. Particularly, the as-coated films were post-annealed at different temperatures in air to investigate the effect of annealing temperature. Crystal structural and surface morphology of the films were measured by X-ray diffraction (XRD) and Atomic Force Microscopy (AFM). XRD patterns and AFM images indicated that the crystallinity and grain size of the films were enhanced and increased, respectively, with temperature. The tribological behavior of films was evaluated by sliding the ZnO films against a Si3N4 ball under 0.5 gf normal load using a reciprocating pin-on-plate tribo-tester. The wear tracks of the films were measured by AFM to quantify the wear resistance of the films. The results showed that the wear resistance of the films could be improved by the annealing process. The wear resistance of the films generally increased with annealing temperature. Specifically, the wear resistance of the films was significantly improved when the annealing temperature was higher than 550° C. The increase in the wear resistance is attributed to the increase in hardness and modulus of the film with annealing temperature.

Original languageEnglish
Pages (from-to)1690-1700
Number of pages11
JournalThin Solid Films
Volume517
Issue number5
DOIs
Publication statusPublished - 2009 Jan 1

Fingerprint

Zinc Oxide
Zinc oxide
zinc oxides
Sol-gel process
Oxide films
oxide films
gels
Annealing
annealing
wear resistance
Wear resistance
Temperature
temperature
Atomic force microscopy
atomic force microscopy
X ray diffraction
Silicon
test equipment
Diffraction patterns
Surface morphology

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Metals and Alloys
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Cite this

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abstract = "The tribological behavior of zinc oxide (ZnO) films grown on glass and silicon (100) substrates by sol-gel method was investigated. Particularly, the as-coated films were post-annealed at different temperatures in air to investigate the effect of annealing temperature. Crystal structural and surface morphology of the films were measured by X-ray diffraction (XRD) and Atomic Force Microscopy (AFM). XRD patterns and AFM images indicated that the crystallinity and grain size of the films were enhanced and increased, respectively, with temperature. The tribological behavior of films was evaluated by sliding the ZnO films against a Si3N4 ball under 0.5 gf normal load using a reciprocating pin-on-plate tribo-tester. The wear tracks of the films were measured by AFM to quantify the wear resistance of the films. The results showed that the wear resistance of the films could be improved by the annealing process. The wear resistance of the films generally increased with annealing temperature. Specifically, the wear resistance of the films was significantly improved when the annealing temperature was higher than 550° C. The increase in the wear resistance is attributed to the increase in hardness and modulus of the film with annealing temperature.",
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Effect of annealing temperature on the tribological behavior of ZnO films prepared by sol-gel method. / Lin, Li Yu; Kim, Dae Eun.

In: Thin Solid Films, Vol. 517, No. 5, 01.01.2009, p. 1690-1700.

Research output: Contribution to journalArticle

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