Polytypic transition

{
  "id": "MLC-T-CHM-009250",
  "term": "Polytypic transition",
  "field": "Chemistry",
  "definition": "A phase transition in a solid material where a substance changes its stacking sequence of close-packed layers, resulting in different polytypes with the same chemical composition but distinct crystal structures. This transition is often observed in materials like silicon carbide and zinc sulfide. The different polytypes can exhibit varied physical properties.",
  "subject": "Inorganic Chemistry",
  "see_also": [
    "sequence"
  ],
  "references": [
    "PAC, 1994, 66, 577. 'Definitions of terms relating to phase transitions of the solid state (IUPAC Recommendations 1994)' on page 589 (https://doi.org/10.1351/pac199466030577)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/polytypic-transition/"
}