thermally-induced transition

A transition that is induced by a change in temperature. Example: RbNO3 undergoes three structural transitions below 573 K:
  1. trigonal → CsCl-type structure at 439 K,
  2. CsCl-type → hexagonal structure at 501 K, and
  3. hexagonal structure → NaCl-type structure at 551 K.
Source:
PAC, 1994, 66, 577 (Definitions of terms relating to phase transitions of the solid state (IUPAC Recommendations 1994)) on page 592