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Resonance

, Volume 20, Issue 1, pp 55–72 | Cite as

Hard Sphere Simulator

Visualization and modelling of atomic structures
  • M. Geeta
  • Shruti Sharma
  • A. S. Panwar
  • M. P. Gururajan
Classroom

Abstract

A Hard Sphere Simulator (HSS) is a mechanical model for demonstrating microscopic features and phenomena such as atomic arrangements in a crystal lattice and corresponding defects in the lattice at the macro-scale; hence, it is a potential learning tool for students. Here, we describe the construction of an HSS, using polymer gunshot balls as hard spheres. Using this HSS, we demonstrate material phenomena such as phase transitions and formation and movements of defects. We also show that, by carrying out Fourier transformation on the images obtained from the HSS, one can obtain the diffraction patterns of these structures.

Keywords

Phase transformations hard sphere simulator crystalline defects grain growth structure of materials diffraction reciprocal space Fourier space Fourier transform 

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Suggested Reading

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    R C Plumb, Teaching the entropy concept, Journal of Chemical Education, Vol.41, 1964.Google Scholar
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    J D Bernal, The structure of liquids: The Bakerian lecture, Proceedings of Royal Society (London), Vol.A280, pp.299–322m 1964.CrossRefGoogle Scholar
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    Resonance, Cyril Stanley issue, Vol.11, No.6, 2011.Google Scholar

Copyright information

© Indian Academy of Sciences 2015

Authors and Affiliations

  • M. Geeta
    • 1
  • Shruti Sharma
    • 1
  • A. S. Panwar
    • 1
  • M. P. Gururajan
    • 1
  1. 1.Department of Metallurgical Engineering and Materials ScienceIndian Institute of TechnologyBombay, MumbaiIndia

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