List of Articles Thermal expansion

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  1 - High-pressure and temperature-induced structural, elastic, and thermodynamical properties of strontium chalcogenides
  Dinesh Varshney S. Jain S. Shriya R. Khenata
  10.1007/s40094-016-0214-z
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  2 - Elastic and thermodynamical properties of cubic (3C) silicon carbide under high pressure and high temperature
  Dinesh Varshney S. Shriya M. Varshney N. Singh R. Khenata
  10.1007/s40094-015-0183-7
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  3 - Preliminary Analysis of the Cladding Mechanical Behavior of a Nuclear Superheat Boiling Water Reactor
  Majid Bahonar Gholamreza Jahanfarnia Morteza Gharib
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  4 - Application of Hamedan's andalusite for the manufacturing of cordierite-mullite refractory materials
  Seyad Hossein Badiee Sasan Otroj
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  5 - Investigation of the Effect of Atomic Structure Defects on the Thermal Expansion Coefficient of Zigzag and Armchair Carbon Nanotubes Using Molecular Dynamics Method
  Farshid Aghadavoudi Hossein Golestanian
  The mechanical and physical properties of carbon nanotubes depend on their size and atomic structure. Accurate determination of the properties of carbon nanotubes, including the coefficient of thermal expansion, has many practical problems due to the limitations of labo More

  The mechanical and physical properties of carbon nanotubes depend on their size and atomic structure. Accurate determination of the properties of carbon nanotubes, including the coefficient of thermal expansion, has many practical problems due to the limitations of laboratory methods. In this study, molecular dynamics method has been used to investigate and extract the properties of thermal expansion coefficient in a number of samples of carbon nanotubes that have different diameters and armchair and zigzag structures. In this study, the effect of atomic structure defects including Stone–Wales and vacancy defects on the coefficient of thermal expansion and longitudinal elastic mechanical properties of carbon nanotubes have been investigated. The potential function used in COMPASS simulation. Based on the obtained results, the coefficient of thermal expansion for CNT (7,7) at a temperature of 800 K is calculated at about 6.34 , which shows a good agreement with the results of laboratory studies. Also, the presence of defects in the atomic structure, including the defect of the non-reconstructed vacancy, in most cases has increased the coefficient of thermal expansion, which has been equal to 65% in CNT (0, 7). The vacancy defect is more effective than the Stone-Walsh defect in changing the coefficient of thermal expansion. The results show that the elastic properties of the CNT case study are also weakened by 22% due to the defect of the vacancy in the longitudinal direction. Manuscript profile