Solid-state precipitate

A new solid phase formed within an existing solid matrix. Its morphology reflects anisotropic interfacial energy, coherency strain and growth kinetics.

Evolution toward larger characteristic precipitate sizes, often by diffusional growth of larger particles at the expense of smaller ones. The associated changes of spacing and shape can alter strengthening.

The shape of a solid-state precipitate. Thin plates can result when broad faces have much lower interfacial energy than edge regions.