Concepts
Phase Diagram
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A phase diagram is a chart, usually of temperature against composition, mapping which phases of a material are stable under given conditions and where they coexist or transform into one another. William Chandler Roberts-Austen's thermal analysis of iron-carbon alloys in the 1890s produced the first detailed diagram of this kind for a technologically important system, and Josiah Willard Gibbs's phase rule gives the diagram its theoretical footing. Materials science uses phase diagrams to predict and control the microstructure that heat treatment and alloying produce.
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Proposed YearSourced to the subject's own accountGibbs derived the phase rule underlying phase diagrams in his paper On the Equilibrium of Heterogeneous Substances, published in parts between 1875 and 1878. Proposed BySourced to the subject's own account Cross-Tradition Connections
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