V2EX demagnetization

Demagnetization

释义 Definition

退磁;去磁:使材料的磁性减弱或消失的过程(常见于金属、磁性合金、磁记录材料等)。在磁学语境中也可指退磁效应/退磁场对材料内部磁化的削弱作用。(该词在不同学科里还有更细分的用法。)

发音 Pronunciation (IPA)

/dimntazen/

例句 Examples

The technician performed demagnetization to remove the screwdriver’s magnetism.
技术员对螺丝刀进行了退磁,以去除它的磁性。

In magnetic materials, demagnetization can occur when heat, vibration, or an opposing field disrupts the alignment of magnetic domains.
在磁性材料中,当热量、振动或反向磁场破坏磁畴的排列时,就可能发生退磁。

词源 Etymology

**de-**(表示“去除、相反”)+ magnet(磁体/磁性,源自希腊语 magnēs,与“磁石”相关)+ -ization(名词后缀,表示“……的过程/作用”)。整体字面义即“去除磁性的过程”。

相关词 Related Words

文学与著作 Literary Works

  • The Feynman Lectures on Physics(《费曼物理学讲义》)中在磁学相关章节常讨论退磁、磁畴与磁化变化等概念。
  • J. D. Jackson 的 Classical Electrodynamics(《经典电动力学》)及相关电磁学教材中常出现 demagnetization(如退磁因子/退磁场的讨论)。
  • 工程与材料类经典教材(如磁学、材料科学与电机工程方向)关于磁滞回线、矫顽力与退磁过程的章节中也经常使用该词。
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