One- and Two-Component System Presentations
One-component systems undergo only congruent transformation or polymorphism. For these systems, C = 1 and the phase rule is stated Φ = 1 − P + 2 = 3 − P. Logically, the variance cannot be greater than 2, and the presentation of phase equilibria in a two-dimensional temperature (T) versus pressure (P) plot is possible. The behavior of all individual chemical elements can be presented in one-component format, schematically given in Figure 6.1.
KeywordsPhase Diagram Univariant Curve Phase Rule Lever Rule Ceramic Process
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