Disorientation Twin Angles for the Hexagonal–Orthorhombic Phase Transitions

Abstract

Orientation of compatible domain walls, magnitude of disorientation angles and shear angle of ferroelastic domain twins resulting from the hexagonal–orthorhombic phase transitions are discussed. Magnitude of shear angle is expressed using crystallographic unit-cell parameters of the low-symmetry phase.

Keywords:

• Ferroelastic domain structure
• compatible domain wall
• disorientation of ferroelastic domains
• disorientation angle
• shear angle

PACS numbers:

• 61.72.Mm
• 77.80.Dj
• 78.20.Bh

Acknowledgments

This work was supported by the Grant Agency of the Czech Republic (GACR 202/07/1289).