Abrasive wear characteristics of plasma sprayed nanostructured alumina/titania coatings

Citation
Y. Wang et al., Abrasive wear characteristics of plasma sprayed nanostructured alumina/titania coatings, WEAR, 237(2), 2000, pp. 176-185
Citations number
24
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Material Science & Engineering
Journal title
WEAR
ISSN journal
0043-1648 → ACNP
Volume
237
Issue
2
Year of publication
2000
Pages
176 - 185
Database
ISI
SICI code
0043-1648(200002)237:2<176:AWCOPS>2.0.ZU;2-K
Abstract
In this paper, the plasma spray technique was used to deposit coatings with reconstituted nanostructured Al2O3/TiO2 powders. The abrasive wear resista nce of the ceramic coatings was evaluated using diamond abrasives. The resu lt showed that the abrasive wear resistance of the coatings produced using the nanostructured Al2O3/TiO2 powders is greatly improved compared with the coating produced using the conventional Al2O3/TiO2 powder (Metco 130). The highest: abrasion resistance of the coating sprayed with nanostructured Al 2O3/TiO2 powder is about four times that of the coating sprayed with the co nventional Al2O3/TiO2 powder. Both as fabricated and after wear Al2O3/TiO2 coatings were investigated by X-ray diffraction, SEM and indentation tests. The abrasive wear mechanism is also discussed. (C) 2000 Elsevier Science S .A. All rights reserved.