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IJSTR >> Volume 9 - Issue 8, August 2020 Edition

International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616

Effect Of Nano-Zirconia Addition On The Tribological Behavior Of Al-7075 Nano Composites

[Full Text]



Naguib G. Yakoub



Stir casting; ZrO2; B4C; Al-7075; Al2O3; Ceramic nano particles; Tribological behavior; COF.



Metal matrix nano composites are widely used in aerospace, automotive, marine, and many other applications due to their high rigidity, enhanced mechanical properties and extremely resistant to wear. In the present study, wear behavior of Al-7075 reinforced by 5 wt.% of nano-boron carbide B4C + 10 wt.% of aluminum oxide Al2O3 and improved by 2,4,6 and 8wt.% of ZrO2 nanoparticles was studied. Samples were prepared using stir casting method. The dry wear test was conducted using a computerized pin-on-disc apparatus to examine the tribological behavior of different aluminum nanocomposites. The effect of sliding speed and applied load was studied. The experimental results show that the resistance to wear is increased as weight fraction of ZrO2 increases within AL-7075 hybrid nanocomposites.



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