V2EX spinodal

Spinodal

定义 Definition

spinodal(形容词/名词)自旋分解线/自旋曲线的;与“自旋分解(spinodal decomposition)”相关的。在相图与热力学中,spinodal 指把体系分成“亚稳区”和“本征不稳定区”的那条边界(或与该边界有关的性质);在spinodal 区内,体系会因微小涨落而自发分相,不需要成核过程。
(该词也常以名词形式出现,指 spinodal(自旋分解线) 本身。)

发音 Pronunciation

/spndl/

例句 Examples

Spinodal decomposition can create patterns without nucleation.
自旋分解可以在不需要成核的情况下形成结构图样。

When the mixture enters the spinodal region, small concentration fluctuations grow rapidly, driving phase separation.
当混合物进入自旋分解区时,微小的浓度涨落会迅速放大,从而推动相分离。

词源 Etymology

spinodal 是物理化学/材料科学中的专门术语,源自较早的名词 spinode/spinodal curve(指相稳定性边界曲线)并加上形容词后缀 -al 构成,表示“与该边界/曲线有关的”。该词属于近现代科学语境中人为造词,主要用于描述相分离理论(尤其是与吉布斯自由能曲率、稳定性判据相关的概念)。

相关词 Related Words

文学作品与著名出处 Literary Works

  • Principles of Condensed Matter Physics(P. M. Chaikin & T. C. Lubensky)在相变与不稳定性章节中讨论 spinodal 与自旋分解。
  • The Theory of Polymer Dynamics(M. Doi & S. F. Edwards)涉及聚合物混合物相分离时常提到 spinodal 概念。
  • J. W. Cahn 的经典论文(如关于 spinodal decomposition 的系列研究)“spinodal/自旋分解”作为核心术语高频出现。
  • Molecular Theory of Capillarity(J. S. Rowlinson & B. Widom)在热力学与相平衡讨论中会涉及 spinodal 稳定性边界。
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