Mechanical properties of nickel-coated single-walled carbon nanotubes and their embedded gold matrix composites

2010 ◽  
Vol 374 (8) ◽  
pp. 1068-1072 ◽  
Author(s):  
Hai-Yang Song ◽  
Xin-Wei Zha
Author(s):  
Saeed Rouhi ◽  
Seyed H Alavi

In this paper, the elastic properties of functionally graded materials reinforced by single-walled carbon nanotubes are studied. Three different matrices, including steel-silicon, iron-alumina and alumina-zirconia are considered. Besides, the effects of nanotube length, radius and volume fraction on the Young’s modulus of functionally graded matrices reinforced by single-walled carbon nanotubes are investigated. It is observed that short nanotubes not only cannot increase the longitudinal elastic modulus of the matrices, but sometimes decrease their elastic modulus. Of the three selected matrices, steel-silicon matrix would have the most enhancement. Investigation of the effect of nanotube volume fraction on the mechanical properties of nanocomposites shows that increasing the volume fraction of long single-walled carbon nanotube results in increasing the elastic modulus of the nanocomposites.


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