析出物

precipitate

[目次：結晶等(結晶構造／材料試料)]

過飽和固溶体の中で過剰に溶解していた原子が母結晶から別れて、新しい安定な相として生じたもの。過飽和度の小さいときは相を形成せず、結晶粒界や転位へ原子として集まる。

"Precipitate" is a solid formed as a new stable phase separated from the matrix crystal by atoms excessively dissolved in a supersaturated solid solution. When the degree of supersaturation of the dissolved atoms is low, they do not form a phase but are collected on grain boundaries or dislocations.