| 释义 |
spinodal, a. and n. Physical Chem.|spaɪˈnəʊdəl|
[f. spinode + -al.]
A. adj. Being or pertaining to a spinodal; involving a metastable condition described by such a curve.
B. n. A curve which is the locus of stationary points in a system of curves; spec. such a curve in a pressure-volume diagram or the like which delimits a region of thermodynamic metastability from one of instability.
1956Nature 3 Mar. 419/2 A single kinetic law did not apply at all temperatures, which suggests that the spinodal curve may have some influence. 1961Acta Metallurgica IX. 536/2 The spinodal is the locus of points within a miscibility gap where δ2F/δx2 = 0. F is the free energy of mixing and x the composition. Ibid. 801/2 Au-Ni thin foils decompose by what is almost certainly a spinodal mechanism. 1969Trans. Metallurg. Soc. AIME CCXLV. 1707 Just above and just below the spinodal, we expect the reaction to proceed along a path which is not necessarily the energetically most favorable one. 1973Physics Bull. Apr. 230 Spinodal decomposition of equimolar NaCl-KCl mixed crystals. 1974Nature 29 Nov. 381/2 The locus of all the tangent points c defines a metastability limit (spinodal). |