Term: thermally-induced transition https://doi.org/10.1351/goldbook.T06306 Definition: A transition that is induced by a change in temperature. Example: RbNO3 undergoes three structural transitions below 573 K: trigonal → CsCl-type structure at 439 K, CsCl-type → hexagonal structure at 501 K, and hexagonal structure → NaCl-type structure at 551 K. Related Terms: 1) structural transitions (http://doi.org/10.1351/goldbook.S06062). Source: PAC, 1994, 66, 577. 'Definitions of terms relating to phase transitions of the solid state (IUPAC Recommendations 1994)' on page 592 (https://doi.org/10.1351/pac199466030577) Citation: 'thermally-induced transition' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.T06306 License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. Disclaimer: The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using.