•  
  •  
 

Corresponding Author

Ramadan, Manal

Subject Area

Production Engineering and Mechanical Design

Article Type

Original Study

Abstract

Metal matrix composites reinforced by carbon nanotubes as well as the effect of Nano Al2O3 (n- Al2O3) particles and carbon nanotubes (CNTs) are very promising materials, suitable for a large number of applications. These composites consist of a metal matrix filled with Nano-particles featuring physical and mechanical properties very different from those of the matrix. The Nano-particles can improve the base material in terms of electrical properties, damping properties and mechanical strength. In this work we investigated the effect of reinforcing Al-2024 with CNTs and n- Al2O3. The Al-2024 alloy was produced by powder metallurgy. The alloy strengthened by a dispersion of two weights % CNTs, 2wt% n- Al2O3, and 1weight % CNTs + 1wt% n- Al2O3 respectively. The effect of the CNTs, and Nano Al2O3 on the microstructure, hardness, and wear, were studied. The micro structural results showed a homogeneous dispersion of CNTs and n- Al2O3 into Al2024. We obtained that the composite 1weight % CNTs + 1wt% n- Al2O3 can increase, hardness as well as reduce the weight loss by 46%, and 80%, respectively. Our results enhance the wear behavior of the composites by using different types of reinforcements.

Keywords

Nano composite; SEM; CNT; Nano Al2O3; Wear; hardness

Download

Share

COinS