Abstract
A phase diagram is constituted by the phase regions displayed and their boundaries. The relationship among neighboring phase regions (abbreviated to NPRs), and the NPRs’ boundaries is of a certain regularity. In other words, the phase regions and their boundaries must follow certain rules in order to constitute a correct phase diagram. The phase rule, which defines the relation among the number of components, number of phases and degrees of freedom of an equilibrium system, is infallibly applicable in every phase diagram. However, it does not cover the relationship and the regularity among the NPRs and their boundaries in the phase diagrams. For example, it would be difficult to answer the following questions:
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(1)
If the phase assemblages of two NPRs are known, what are the characteristics of the boundaries between them?
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(2)
If the phase assemblage of the first NPR and the characteristic of the boundary between two NPRs are known, what is the phase assemblage of the second NPR?
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© 2009 Science Press Beijing and Springer-Verlag Berlin Heidelberg
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Zhao, M., Song, L., Fan, X. (2009). The Boundary Theory of Isobaric Phase Diagrams. In: The Boundary Theory of Phase Diagrams and Its Application. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-02940-0_2
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DOI: https://doi.org/10.1007/978-3-642-02940-0_2
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