Quenching

From Biocrawler, the free encyclopedia.

• Quenching is a general term for non-radiative de-excitation. One major reason for non-radiative de-excitation is collisions. As a consequence is the quenching often heavily dependent on pressure and temperature. Quenching poses a problem for non-instant spectroscopic methods, such as laser-induced fluorescence.

• In materials science, quenching is the rapid cooling of a solid to lock it into a metastable crystal structure rather than allow it to cool slowly and revert to a softer structure. It is most commonly used to harden steel by introducing martensite, in which case the steel must be cooled from a temperature at which austenite is stable.

ja:焼入れ

Wikipedia (http://en.wikipedia.org/wiki/Main_Page) Quenching (http://en.wikipedia.org/wiki/Quenching) version history (http://en.wikipedia.org/w/index.php?title=Quenching&action=history) GNU Free Documentation Lizenz (http://en.wikipedia.org/wiki/Wikipedia:Text_of_the_GNU_Free_Documentation_License) CC-by-sa (http://creativecommons.org/licenses/by-sa/2.5/)

---