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Effect of sintering temperature on tribological behavior of Ce-TZP/Al2O3-aluminum nanocomposite

Bahrami, A ; Sharif University of Technology | 2015

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  1. Type of Document: Article
  2. DOI: 10.1177/0021998314567010
  3. Publisher: SAGE Publications Ltd , 2015
  4. Abstract:
  5. 10Ce-TZP/Al2O3 nanoparticles as reinforcement can be a good substitute in aluminum matrix composites prepared through powder metallurgy. In this work, the effects of sintering temperature on the hardness, friction, and wear characteristics of Al-10Ce-TZP/Al2O3 composites have been investigated. Ce-TZP/Al2O3 nanocomposites were synthesized by the aqueous combustion method. About 7 wt% 10Ce-TZP/Al2O3-aluminum composites in the form of cylindrical samples were prepared at the sintering temperatures of 400°C, 450°C, and 500°C under an applied pressure of 600 MPa for 60 min. The experimental results show that the distribution of Ce-TZP/Al2O3 nanocomposite into the metal matrix is homogenous and that at 450°C the hardness and wear resistance improved considerably. Formation of an oxide layer is a manifestation that in nanocomposites produced at 450°C, worn surfaces were smoother and the total depth of deformations were not severe
  6. Keywords:
  7. 10Ce-TZP/Al2O3 nanocomposite ; Aluminum ; Aluminum powder metallurgy ; Cerium ; Hardness ; Nanocomposites ; Powder metallurgy ; Sintering ; Tribology ; Wear resistance ; Aluminum composites ; Aluminum matrix composites ; Applied pressure ; Combustion method ; Cylindrical samples ; Sintering temperatures ; Tribological behaviors ; Wear characteristics ; Metallic matrix composites
  8. Source: Journal of Composite Materials ; Volume 49, Issue 28 , December , 2015 , Pages 3507-3514 ; 00219983 (ISSN)
  9. URL: http://jcm.sagepub.com/content/49/28/3507