Results 171 to 180 of about 543,167 (217)

Spinodal decomposition in 3-space

Physical Review E, 1993
Using a cell-dynamical system (CDS) to model the separation of phases, we present the results of large-scale simulations of spinodal decomposition in 3-space of a symmetric binary alloy and incompressible binary fluid at critical quench. Our main results are (1) the reliable determination of the asymptotic or the almost asymptotic form factors for ...
, Shinozaki, , Oono
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Spinodal decomposition in a binary mixture

Physical Review Letters, 1992
The spinodal decomposition in a critical mixture of polydimethylsiloxane and diethyl carbonate was investigated by a time-resolved light-scattering technique focusing especially on the early and intermediate stages of phase separation. A second peak in addition to the main peak was found in the higher-scattering-angle region of the spectrum ...
, Kubota, , Kuwahara
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Spinodal decomposition in a concentration gradient

Phase Transitions, 1990
The effect of global density inhomogeneities on spinodal decomposition is studied in two dimensions. We performed lattice gas simulations to show that–except for boundary effects–any spatially varying density profile is conserved during phase separation.
M Kolb, T Gobron, J.-F Gouyet, B Sapoval
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Morphology of spinodal decomposition

Physical Review E, 1997
The morphology of homogeneous phases during spinodal decomposition, i.e., the scaling of the content, shape, and connectivity of spatial structures is described by a family of morphological measures, known as Minkowski functionals. Besides providing means to determine the characteristic length scale $L$ in a statistically robust and computationally ...
Klaus R. Mecke, Victor Sofonea
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Anisotropic Spinodal Decomposition

Europhysics Letters (EPL), 1991
We present a modification of the Cahn-Hilliard-Cook model to describe spinodal decomposition in an anisotropic fluid mixture, such as a blend of liquid crystals or a polymer solution under an extensional flow, and solve for the early time evolution of the structure function within a linear approximation.
R. L. H Essery, R. C Ball
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Spinodal decomposition: A reprise

Acta Metallurgica, 1971
Tiller et al. have recently attempted(1) to reformulate the theory of spinodal decomposition. Unfortunately, the equations they propose violate the second law of thermodynamics as well as displaying other incongruities. It is shown that, even if their intentions are carried out correctly, the results are at variance with existing diffusion data.
J.W Cahn, J.E Hilliard
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Spinodal decomposition in mixtures containing nematogens. II. Kinetics of spinodal decomposition

The Journal of Chemical Physics, 1993
The problem of simultaneous phase separation and ordering kinetics in mixtures containing a nematic component is addressed through the introduction of a time-dependent Landau–Ginzburg model. Dynamic equations for the time evolution of orientation and concentration fluctuations are given; the solution to these equations leads to explicit expressions for
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The existence of the spinodal and its relation to spinodal decomposition

Scripta Metallurgica, 1976
Abstract The most well-known theory of spinodal decomposition depends on the existence of a free energy versus composition curve for a binary solution which exhibits a maximum within the region of the miscibility gap of its phase diagram. Such a maximum cannot exist unless special constraints are applied to the thermodynamic system. The role of these
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On the kinetics of spinodal decomposition

Zeitschrift f�r Physik B Condensed Matter, 1980
We discuss the kinetics of phase separation based on the mechanism of spinodal decomposition. The starting point is Boltzmann's transport equation. A perturbation theory will be developed leading to a hierarchy of differential equations for the local density. The first member of this hierarchy is a nonlinear wave-type equation, which linearized version
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Hardening by spinodal decomposition

Acta Metallurgica, 1963
Abstract The effect of the internal stresses produced by spinodal decomposition on dislocation behavior is investigated for several slip systems in cubic materials.
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