shear transition

https://doi.org/10.1351/goldbook.S05641
A
diffusionless transition
that involves a change of the shape of the
unit cell
by a process that can be described as shear.
Source:
PAC, 1994, 66, 577. (Definitions of terms relating to phase transitions of the solid state (IUPAC Recommendations 1994)) on page 590 [Terms] [Paper]