| 单词 | recrystallization |
| 释义 | recrystallization [rē´krist·ǝl·ǝ`zā·shǝn] CHEMISTRY Repeated crystallization of a material from fresh solvent to obtain an increasingly pure product. CRYSTALLOGRAPHY A change in the structure of a crystal without a chemical alteration. METALLURGY A process which takes place in metals and alloys following distortion and fragmentation of constituent crystals by severe mechanical deformation, in which some fragments grow at the expense of others, so that larger, strain-free grains are formed; it progresses slowly at room temperature, but is greatly speeded by annealing. PETROLOGY The formation of new mineral grains in crystalline form in a rock under the influence of metamorphic processes. |
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