Abstract
The kinetics of the displacive cubic‐to‐tetragonal (c→t′) phase transformation and the evolution of twin structure of Y2O3‐ZrO2 systems were investigated by employing the time‐dependent Ginzburg‐Landau equations, in which the displacive modes were described by nonconserved order parameters. The original elasticity theory of Khachaturyan, in a sharp‐interface description for an arbitrary distribution of second‐phase precipitates in a matrix, was reformulated in the spirit of the diffuse interface theory of Cahn and Hilliard for interphase boundaries. The influence of thermodynamic conditions, clamped or stress‐free, on microstructure evolution was studied. Our computer simulation showed that, even though the thermodynamic equilibrium is the single domain under a stress‐free condition, the twin structure can form during a kinetic path of the phase transformation, and it is the clamped condition which results in the formation of stable twins.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
