V2EX phase-transition

Phase Transition

Definition / 释义

phase transition相变;指物质或系统在外界条件(如温度、压力、磁场等)变化到某一阈值时,从一种“相”(状态/结构/有序程度)转变为另一种相的现象,例如冰融化成水水沸腾成水蒸气,或磁性材料从有磁序变为无磁序。

Pronunciation / 发音(IPA)

/fez trnzn/

Examples / 例句

The phase transition happens at 0°C for pure water.
纯水在 0°C 会发生相变。

Near the critical point, the phase transition can show dramatic changes in properties like density and heat capacity.
在临界点附近,相变可能会使密度、热容等性质发生显著变化。

Etymology / 词源

phase 原意与“阶段、相位/相”有关,在科学语境里常指物质的相态(如固态、液态、气态)或系统的某种宏观状态transition 来自拉丁语词根,含“跨越、转变”之意。两者合起来,phase transition 就是“从一种相/状态转变到另一种相/状态”。

Related Words / 相关词汇

Literary Works / 文献与作品中的用例

  • The Feynman Lectures on Physics(费曼《物理学讲义》)
  • Statistical Physics(Landau & Lifshitz,《统计物理》)
  • Introduction to Modern Statistical Mechanics(David Chandler,《现代统计力学导论》)
  • Phase Transitions and Critical Phenomena(Domb & Green 编,《相变与临界现象》)
  • Principles of Condensed Matter Physics(Chaikin & Lubensky,《凝聚态物理学原理》)
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