| 单词 |
supercooling |
| 释义 |
superˈcooling, vbl. n.
[super- 9 b.]
The cooling of a liquid to below its freezing point without solidification or without crystallization occurring; more widely, cooling to below the temperature of a phase transition without the change of phase occurring; reduction in the temperature of a phase transition.
1898Chem. News 29 July 59/1 The number of points increase with strong super-cooling. 1907Jrnl. Phys. Chem. XI. 425 The freezing point curve had been determined..and there is considerable evidence of the effects of supercooling. 1922Glazebrook Dict. Appl. Physics I. 947/2 The supercooling of a vapour without condensation is analogous to the supercooling of a liquid without crystallization. 1963R. A. Flinn Fund. Metal Casting ii. 21 Some supercooling usually ensues before initial crystallization. 1975Rev. Mod. Physics XLVII. 463/2 This would explain..experiments [on 3He] at melting pressure..where no superheating of the B→A transition is observed while supercooling of the A→B transition is common. 1980S. A. Morse Basalts & Phase Diagrams iii. 28 Supercooling results from the fact that the nucleation of a crystal is a random process, requiring the accidental arrangement..of atoms in the pattern of the crystal structure, after which a crystal nucleus may grow at a great rate. |
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