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DETERMINATION OF THE EFFECT OF MWNTs ASPECTRATO ON THE NANOINDENTATION PROPERTIES OF EPOXY-BASED) NANOCOMIPOSITES

Publish place: 3rd International Conference on Ultrafine Grained and Nanostructured Materials
Publish Year: 1390
نوع سند: مقاله کنفرانسی
زبان: English
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لینک ثابت به این Paper:
https://civilica.com/doc/613092

شناسه ملی سند علمی:

UFGNSM03_064

تاریخ نمایه سازی: 10 تیر 1396

Abstract:

The effects of multi-walled carbon nanotubes (MWNTs) aspect ratio on the elastic and hardness properties of epoxy/MWNT nanocomposites were investigated using the nanoindentation technique. It was found that the increase in the aspect ratio of the nano-reinforcements increase the elastic modulus and hardness values considerably. In addition, the original Halpin-Tsai models for prediction of elastic modulus and hardness were modified to include the effective aspect ratio factor. The modified models were found to predict the experimental results much more accurately. The enhancement mechanisms were also discussed in detail.

Keywords:

Nanoindentation , carbon manotubes , manocomposites , mechanical properties

Authors

S. DOAGOU

R Fatigue and Fracture Laboratory, Center of Excellence in Experimental Solid Mechanics and Dynamics, School of Mechanical Engineering, Iran University of Science and Technology, Narmak, Tehran, ۱۶۸۴۶, Iran.

E. ALISHAHI

Fatigue and Fracture Laboratory, Center of Excellence in Experimental Solid Mechanics and Dynamics, School of Mechanical Engineering, Iran University of Science and Technology, Narmak, Tehran, ۱۶۸۴۶, Iran.

S. SHADLOU

Fatigue and Fracture Laboratory, Center of Excellence in Experi | Solid Mechanics and Dy iris School of Mechanical Engineering, Iran University of Science and Technology, Narmak, Tehran, ۱۶۸۴۶, Iran.

M. R. AYATOLLAH

Fatigue and FractureLaboratory, Center of Excellence in Experimental Solid Mechanics and Dynamics, School of Mechanical Engineering, Iran University of Science and Technology, Narmak, Tehran, ۱۶۸۴۶, Iran.