Investigation on the Surface Structure and Tribological Characterization of 10 wt.% ZrO2-Reinforced Alumina Prepared by Flame Spray Coating

In this study, we have investigated the microstructural characteristics, the mechanical properties, and the dry sliding wear behavior of a ceramic coating consisting of zirconia (ZrO2) and alumina (Al2O3) deposited by flame spraying. A series of wear tests were carried out under a variety of loads and at two different sliding speeds. The evaluation included an examination of the coating microstructure, microhardness, coefficient of friction (COF), and wear resistance of the flame-sprayed coating. The results showed that the coatings had a perfectly structured micro-architecture and were metallurgically bonded to the substrate. The Al2O3 coating exhibited a fine granular structure with pores and oxides. The microstructure of Al2O3-10 wt.% ZrO2, on the other hand, showed a blocky structure with a uniform distribution of ZrO2 inclusions in the composite coating. X-ray diffraction (XDR) results showed that the phases in both coatings were predominantly a-Al2O3 with a minor presence of ?-Al2O3. However, in addition to residual ZrO2 in the tetragonal phase, the ZrO2-Al2O3 coating showed a predominance of ZrO2 in the monoclinic structure. To elucidate the intricacies of the wear mechanism and the characteristics of the wear debris, a comprehensive analysis of the wear performance of flame-sprayed ceramic coatings was carried out.

• Record URL:
  • https://doi.org/10.4271/05-17-02-0009
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/19463979
• Supplemental Notes:
  • Abstract reprinted with permission of SAE International.
• Authors:
  • Younes, Rassim
  • Baiamonte, Lidia
  • Idir, Abdelhek
  • Dalibon, Eugenia
  • Sadeddine, Abdelhamid
  • Bradai, Mohand Amokrane
• Publication Date: 2024-2-20

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp 111-123
• Serial:
  • SAE International Journal of Materials and Manufacturing
  • Volume: 17
  • Issue Number: 2
  • Publisher: SAE International
  • ISSN: 1946-3979
  • EISSN: 1946-3987
  • Serial URL: https://www.sae.org/publications/collections/content/E-JOURNAL-05

Subject/Index Terms

• TRT Terms: Ceramic materials; Coatings; Colorants; Composite materials; Finishes; Nanotechnology; Properties of materials; Tribology; Wear
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01910788
• Record Type: Publication
• Source Agency: SAE International
• Report/Paper Numbers: 05-17-02-0009
• Files: TRIS, SAE
• Created Date: Mar 4 2024 4:10PM