V2EX dilatant

Dilatant

释义 Definition

dilatant(形容词)

  1. (流变学)剪胀的;遇剪切变稠的:受剪切应力(搅拌、挤压、快速流动)时黏度增大的一类非牛顿行为/材料。
  2. (较少用)使扩张的;膨胀的(指趋向于“扩张/张开”的性质)。

例句 Examples

The mixture becomes dilatant when you stir it fast.
这种混合物在你快速搅拌时会表现出剪胀(变稠)特性。

In experiments, the dilatant suspension showed a sharp rise in viscosity under high shear, which helped explain why the material resisted sudden impacts.
在实验中,这种剪胀悬浮液在高剪切下黏度陡增,这也解释了它为何能抵抗突然的冲击。

发音 Pronunciation

/daletnt/

词源 Etymology

来自拉丁语词根 **dilat-**(意为“扩张、张开”),与 dilate(扩张)同源;后缀 -ant 表示“具有……性质的”。在流变学里,它专门用来描述“受剪切而变稠”的材料行为(即“剪胀”)。

相关词 Related Words

文学与著作 Literary Works

  • Rheology: Principles, Measurements, and Applications(Christopher W. Macosko)
  • Transport Phenomena(Bird, Stewart & Lightfoot)
  • Introduction to Fluid Mechanics(Robert W. Fox, Alan T. McDonald 等)
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