Specific heat and thermal conductivity of nanomaterials
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2017-01-17 |
| Journal | Modern Physics Letters B |
| Authors | Sandhya Bhatt, Raghuvesh Kumar, Munish Kumar |
| Institutions | Govind Ballabh Pant University of Agriculture and Technology |
| Citations | 24 |
Abstract
Section titled āAbstractāA model is proposed to study the size and shape effects on specific heat and thermal conductivity of nanomaterials. The formulation developed for specific heat is based on the basic concept of cohesive energy and melting temperature. The specific heat of Ag and Au nanoparticles is reported and the effect of size and shape has been studied. We observed that specific heat increases with the reduction of particle size having maximum shape effect for spherical nanoparticle. To provide a more critical test, we extended our model to study the thermal conductivity and used it for the study of Si, diamond, Cu, Ni, Ar, ZrO 2 , BaTiO 3 and SrTiO 3 nanomaterials. A significant reduction is found in the thermal conductivity for nanomaterials by decreasing the size. The model predictions are consistent with the available experimental and simulation results. This demonstrates the suitability of the model proposed in this paper.