diffusionless transition

https://doi.org/10.1351/goldbook.D01728
A transition that does not involve long-range @D01716@ of atomic species over distances significantly greater than a typical interatomic distance.
Source:
PAC, 1994, 66, 577. (Definitions of terms relating to phase transitions of the solid state (IUPAC Recommendations 1994)) on page 581 [Terms] [Paper]