Curve defining the region of composition and temperature for a binary mixture across
which a transition occurs from conditions where single-phase mixtures are
metastable to conditions where single-phase mixtures are
unstable and undergo
phase separation by
spinodal decomposition.
Notes:
- The spinodal curve for a binary mixture is defined as the geometrical locus of all
states with
.
-
In the unstable region bounded by the spinodal curve, phase domain separation is spontaneous, i.e., no nucleation step is required to initiate the separation process.
Source:
PAC, 2004, 76, 1985
(Definition of terms related to polymer blends, composites, and multiphase polymeric
materials (IUPAC Recommendations 2004))
on page 1998
Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8.
https://doi.org/10.1351/goldbook.
