What Is Spinodal Decomposition Alloy?

Spinodal decomposition occurs when one thermodynamic phase spontaneously (i.e., without nucleation) separates into two phases. ... Spinodal decomposition is observed, for example, when mixtures of metals or polymers separate into two coexisting phases, each rich in one species and poor in the other.

What are the main qualitative features of spinodal decomposition?

The theory leads to a qualitative understanding of all the major features of spinodal decomposition: Equilibration of local degrees of freedom, a coarsening small-wave-number peak associated with domain formation, and scaling behavior.

What is spinodal?

In thermodynamics, the spinodal is the limit of stability of a solution, denoting the boundary of absolute instability of a solution to decomposition into multiple phases. ... Outside of the curve, the solution will be at least metastable with respect to fluctuations.