phase transition

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phase transition

n.
A change in a feature of a physical system, often involving the absorption or emission of energy from the system, resulting in a transition of that system to another state. The melting of ice is a phase transition of water from a solid phase to a liquid phase, requiring energy in the form of heat.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.phase transition - a change from one state (solid or liquid or gas) to another without a change in chemical composition
freeze, freezing - the withdrawal of heat to change something from a liquid to a solid
liquefaction - the conversion of a solid or a gas into a liquid
natural action, natural process, action, activity - a process existing in or produced by nature (rather than by the intent of human beings); "the action of natural forces"; "volcanic activity"
melt, melting, thaw, thawing - the process whereby heat changes something from a solid to a liquid; "the power failure caused a refrigerator melt that was a disaster"; "the thawing of a frozen turkey takes several hours"
evaporation, vaporisation, vaporization, vapour, vapor - the process of becoming a vapor
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References in periodicals archive ?
The Landau-de Gennes model is a mesoscopic phenomenological model expressed in terms of an integral functional of a tensor field Q, the "tensor order parameter." In its simplest form (the "equal elastic constant model"), the functional can be written
In the literature about materials containing fibres, the terms orientation tensor and alignment tensor appear frequently; in liquid crystal theory, an order parameter is introduced.
Ordinary differential equation (ODE) system that consists of first-order differential equations can be generalized to fractional differential equation (FDE) system that consists of fractional order differential equations a, with a fractional order parameter 0 < [alpha] [less than or equal to] 1 [6].
First, system parameters are selected as a = 5, b = 90, and the order parameter [q.sub.i] (i = 1,2,3) is varied.
The model is characterized by a Ginzburg-Landau Hamiltonian with a three-component order parameter and the symmetry of the [Cu.sub.3]Au system.
In terms of these operators the AF order parameter can be defined as follows [2]:
Outside of this volume the Cooper pair density [mathematical expression not reproducible] describing the superconducting phase, called the order parameter, is zero [5, 6, 9-18].
The degree of chemical ordering is based on the crystalline ordering of the face-centered tetragonal structure and is described by the chemical order parameter (S).
Generally speaking, the total contribution of the order parameter [g.sub.j] can be obtained through the integration of [u.sub.j] ([g.sub.ji]).
The dielectric anisotropy depends upon the angle [beta] and the order parameter [24], The trend of dielectric anisotropy shown in Fig.