noun
phase transition; phase change
Technical term in physics for a change between states of matter (solid, liquid, gas, etc.) or other ordered phases.
水の相転移には、融解や蒸発などがある。
Phase transitions of water include melting and evaporation.
この物質は低温で超伝導
This material exhibits a phase transition to a superconducting phase at low temperatures.
Compound of 相 (phase) and 転移 (transition, change). A direct translation of the English term 'phase transition'.