V2EX metastable

Metastable

释义 Definition

亚稳的;亚稳态的:指一种状态看起来稳定、能持续一段时间,但其实不是最稳定(最低能量)的状态;在受到足够扰动或经过一定时间后,可能会转变为更稳定的状态。常见于物理、化学、材料科学(如相变、能量势垒、激发态等)语境。

例句 Examples

The system is metastable and can change if you shake it.
这个系统处于亚稳态,摇动一下就可能发生变化。

After rapid cooling, the alloy formed a metastable phase that slowly transformed at room temperature.
快速冷却后,这种合金形成了亚稳相,并在室温下缓慢转变为更稳定的相。

发音 Pronunciation (IPA)

/mtstebl/

词源 Etymology

meta-(源自希腊语,意为“在……之后 / 超出 / 改变”)+ stable(稳定的)构成,字面含义可理解为“超出(真正)稳定的稳定”强调“表面稳定但并非最稳定”的性质。

相关词 Related Words

文学与著作中的用例 Literary Works

  • The Feynman Lectures on Physics(费曼物理学讲义)讨论能量势垒、状态寿命等概念时常涉及“metastable”情形。
  • Introduction to Solid State Physics by Charles Kittel(固体物理导论)在相变、缺陷、材料结构与能态的语境中使用该词。
  • Atkins’ Physical Chemistry(阿特金斯物理化学)讲解相平衡、动力学控制与热力学稳定性差异时常出现“metastable”。
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