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Abstract
The present study is based on the thermo-elastic properties of some nanomaterials under the effect of temperature. Out of the thermo-elastic properties the thermal expansivity ( α T ), volume thermal expansion ( V / V 0 ) and bulk modulus ( K T ) have been calculated using integral form of equation of state (IFEOS) as proposed by Singh and Gupta. IFEOS is based on the fact that Anderson Grüneisen parameter ( δ T ) strongly depends on temperature. This equation of state has been applied to some nanomaterials like nanocrystalline nickel Ni, fullerene and n-(Ni+Fe) alloy. The results of thermal expansivity ( α T ) and volume thermal expansion ( V / V 0 ) for fullerene were compared to the previous data based on molecular simulation method and the results of thermal expansivity ( α T ) obtained for n-Ni and n-(Ni+Fe) were compared to the available experimental data which was found to be in close agreement with them. Therefore this study supports the validity of IFEOS for nanomaterials.
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