Eutectic Point

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Entry by Emily Redston
Figure 1 shows a common and relatively simple binary phase diagram known as a eutectic phase diagram. A eutectic diagram can be thought of as the intersection of two solid solution diagrams. At the intersection of the two liquidus lines, the melt is in equilibrium with the two solid phases. According to Gibbs Phase Rule, we know that the number of degrees of freedom is <math>F=\left( C+2-P \right)=2+2-3=1 </math>. Zero degrees of freedom means that we cannot have a solidification range, and thus the melt must solitify at exactly one point --- the eutectic point!


Haasen, Peter. Physical Metallurgy. Cambridge: Cambridge UP, 1996.

Callister, William D. Materials Science and Engineering: an Introduction. New York: John Wiley & Sons, 2007.

Spaepen, Frans. Applied Physics 282: Solids: Structure and Defects. Harvard University

Keyword in References

Stretchable Microfluidic Radiofrequency Antennas

See also:

Phase separation in Phases and Phase Diagrams from Lectures for AP225.