共きょう晶しょう

noun, noun which may take the genitive case particle 'no'

eutectic point; eutectic

Technical term in materials science and metallurgy. Refers to the composition and temperature at which a liquid transforms into two solid phases simultaneously, or the resulting microstructure.

• この合ごう金きんの共きょう晶しょう温おん度どは約やく183度どです。

  The eutectic temperature of this alloy is about 183°C.

• 共きょう晶しょう組そ成せいでは、融ゆう点てんが最もっとも低ひくくなる。

  At the eutectic composition, the melting point becomes the lowest.