• Ferroelasticity

    • Fulltext

       

        Click here to view fulltext PDF


      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/006/04/0733-0753

    • Keywords

       

      Ferroelasticity; symmetry; phase transitions; twinning; ferroelectric ferroelastics

    • Abstract

       

      This paper surveys the present-day description of ferroelasticity in terms of the notion of symmetry descent. Based on the work of earlier authors, a symmetry classification of phase transitions is presented. A general classification of twinning in crystals is also attempted on the basis of this scheme. Most kinds of twinning fall into two broad categories: nonferroelastic and ferroelastic. The shape-memory effect associated with martensitic transitions is discussed briefly. The interesting possibilities of this effect in the case of ferroelectric ferroelastics, for which the electric field provides an additional control parameter, are also mentioned.

    • Author Affiliations

       

      V K Wadhawan1

      1. Neutron Physics Division, Bhabha Atomic Research Centre, Trombay, Bombay - 400 085, India
    • Dates

       
  • Bulletin of Materials Science | News

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2021-2022 Indian Academy of Sciences, Bengaluru.