Massive transition

{
  "id": "MLC-T-CHM-007010",
  "term": "Massive transition",
  "field": "Chemistry",
  "definition": "A solid-state transformation in which a parent phase changes into a product phase of the same composition but a different crystal structure, growing by thermally activated atomic jumps across a mobile, incoherent interface. It needs no long-range diffusion, so it runs faster than ordinary nucleation and growth, yet unlike a martensitic transformation it is not a shear process. It occurs in alloys such as copper-zinc and titanium alloys on moderately rapid cooling.",
  "subject": "Inorganic Chemistry",
  "see_also": [
    "diffusion",
    "interface",
    "nucleation and growth"
  ],
  "references": [
    "PAC, 1994, 66, 577. 'Definitions of terms relating to phase transitions of the solid state (IUPAC Recommendations 1994)' on page 585 (https://doi.org/10.1351/pac199466030577)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/massive-transition/"
}