Abstract:
To predict the most suitable EOS for analysis of real compression behavior
of nanomaterials such as C60 solid, CdSe (5.4 nm), Ni-filled MWCNT, Fe-filled MWCNT, CNT, and ∝-Fe nanotubes under isothermal compression. 
we have used Murnaghan, Tait EOS, based on thermodynamical 
approximation and the results of the experiment have been compared. The 
analysis of computed results suggests that Tait and Murnaghan’s EOS is in 
good agreement with the experimental data that is already known, proving 
the correctness of the formulation used in this study in the entire range of 
pressure. Surprisingly it is also observed that the Murnaghan formulation 
gives a better agreement with the experimental result for carbon nanotubes 
than the Tait formulation.Thus, it is concluded that thewell-known and 
widely used Murnaghan EOS is still most suitable and valid for bulk as well 
as nanomaterials.The present study also reveals the fact that the carbon 
Nanotubes are less compressible than Ni-filled MWCNT, and Fe-filled 
MWCNT.
 
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