Effects of micro-grooves on tribological behaviour of plasma-sprayed alumina-13%titania coatings

J. A. Wahab, Mariyam Jameelah Ghazali, Zainuddin Sajuri, Y. Otsuka, M. Jayaprakash, S. Nakamura, A. F S Baharin

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

This study was aimed at investigating the effects of micro-grooves on the tribological behaviour of a plasma-sprayed Al2O3 - 13%TiO2 coating. A combined surface profile with non-regular depths and micro-groove texture was successfully developed by using a Nd:YVO4 laser system. The surface condition and characterisation of the Al2O3 - 13%TiO2 coating was conducted using a VPSEM and a 3D microscope. A pin-on-disc test was then carried out to measure the effectiveness of the micro-grooves in reducing the wear rates of the Al2O3 - 13%TiO2 coatings under non-lubricated conditions. It was noted that the textured coatings gradually decreased the wear rate with only a slight reduction on the friction coefficient due to the entrapment of the wear debris within the grooves. It was proven that the combined surfaces successfully reduced the wear rate up to 44.7% and 61.5% for 10N and 20N of load respectively.

Original languageEnglish
JournalCeramics International
DOIs
Publication statusAccepted/In press - 23 Oct 2016

Fingerprint

Aluminum Oxide
Alumina
Titanium
Wear of materials
Plasmas
Coatings
Debris
Microscopes
Textures
Friction
titanium dioxide
Lasers

Keywords

  • Micro-groove
  • Plasma sprayed AlO - 13%TiO
  • Surface texturing
  • Wear

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Effects of micro-grooves on tribological behaviour of plasma-sprayed alumina-13%titania coatings. / Wahab, J. A.; Ghazali, Mariyam Jameelah; Sajuri, Zainuddin; Otsuka, Y.; Jayaprakash, M.; Nakamura, S.; Baharin, A. F S.

In: Ceramics International, 23.10.2016.

Research output: Contribution to journalArticle

@article{f0b1f864ce8d435a9c505e080c9f264b,
title = "Effects of micro-grooves on tribological behaviour of plasma-sprayed alumina-13{\%}titania coatings",
abstract = "This study was aimed at investigating the effects of micro-grooves on the tribological behaviour of a plasma-sprayed Al2O3 - 13{\%}TiO2 coating. A combined surface profile with non-regular depths and micro-groove texture was successfully developed by using a Nd:YVO4 laser system. The surface condition and characterisation of the Al2O3 - 13{\%}TiO2 coating was conducted using a VPSEM and a 3D microscope. A pin-on-disc test was then carried out to measure the effectiveness of the micro-grooves in reducing the wear rates of the Al2O3 - 13{\%}TiO2 coatings under non-lubricated conditions. It was noted that the textured coatings gradually decreased the wear rate with only a slight reduction on the friction coefficient due to the entrapment of the wear debris within the grooves. It was proven that the combined surfaces successfully reduced the wear rate up to 44.7{\%} and 61.5{\%} for 10N and 20N of load respectively.",
keywords = "Micro-groove, Plasma sprayed AlO - 13{\%}TiO, Surface texturing, Wear",
author = "Wahab, {J. A.} and Ghazali, {Mariyam Jameelah} and Zainuddin Sajuri and Y. Otsuka and M. Jayaprakash and S. Nakamura and Baharin, {A. F S}",
year = "2016",
month = "10",
day = "23",
doi = "10.1016/j.ceramint.2017.02.052",
language = "English",
journal = "Ceramics International",
issn = "0272-8842",
publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Effects of micro-grooves on tribological behaviour of plasma-sprayed alumina-13%titania coatings

AU - Wahab, J. A.

AU - Ghazali, Mariyam Jameelah

AU - Sajuri, Zainuddin

AU - Otsuka, Y.

AU - Jayaprakash, M.

AU - Nakamura, S.

AU - Baharin, A. F S

PY - 2016/10/23

Y1 - 2016/10/23

N2 - This study was aimed at investigating the effects of micro-grooves on the tribological behaviour of a plasma-sprayed Al2O3 - 13%TiO2 coating. A combined surface profile with non-regular depths and micro-groove texture was successfully developed by using a Nd:YVO4 laser system. The surface condition and characterisation of the Al2O3 - 13%TiO2 coating was conducted using a VPSEM and a 3D microscope. A pin-on-disc test was then carried out to measure the effectiveness of the micro-grooves in reducing the wear rates of the Al2O3 - 13%TiO2 coatings under non-lubricated conditions. It was noted that the textured coatings gradually decreased the wear rate with only a slight reduction on the friction coefficient due to the entrapment of the wear debris within the grooves. It was proven that the combined surfaces successfully reduced the wear rate up to 44.7% and 61.5% for 10N and 20N of load respectively.

AB - This study was aimed at investigating the effects of micro-grooves on the tribological behaviour of a plasma-sprayed Al2O3 - 13%TiO2 coating. A combined surface profile with non-regular depths and micro-groove texture was successfully developed by using a Nd:YVO4 laser system. The surface condition and characterisation of the Al2O3 - 13%TiO2 coating was conducted using a VPSEM and a 3D microscope. A pin-on-disc test was then carried out to measure the effectiveness of the micro-grooves in reducing the wear rates of the Al2O3 - 13%TiO2 coatings under non-lubricated conditions. It was noted that the textured coatings gradually decreased the wear rate with only a slight reduction on the friction coefficient due to the entrapment of the wear debris within the grooves. It was proven that the combined surfaces successfully reduced the wear rate up to 44.7% and 61.5% for 10N and 20N of load respectively.

KW - Micro-groove

KW - Plasma sprayed AlO - 13%TiO

KW - Surface texturing

KW - Wear

UR - http://www.scopus.com/inward/record.url?scp=85012890543&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85012890543&partnerID=8YFLogxK

U2 - 10.1016/j.ceramint.2017.02.052

DO - 10.1016/j.ceramint.2017.02.052

M3 - Article

AN - SCOPUS:85012890543

JO - Ceramics International

JF - Ceramics International

SN - 0272-8842

ER -