The orientation of interfaces between a prototype phase and its ferroelastic derivatives : theoretical and experimental study

Abstract

A method is proposed to determine the strainfree interfaces between a paraelastic prototype phase and its ferroelastic derivatives. The predictions of the theory are tested by means of electron microscope observations on a number of examples. Reasonable agreement is found between the predictions and the observations Proposition d'une methode permettant de determiner les interfaces non deformees entre une phase para-elastique et les variantes d'orientation ferroelastiques. Comparaison des predictions de la theorie a quelques exemples d'observations obtenus par microscopie electronique