Chapter 9_Part_3

Chapter 9_Part_3 - Binary Isomorphous Systems (I)...

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11 MSE 2090: Introduction to Materials Science Chapter 9, Phase Diagrams Isomorphous system - complete solid solubility of the two components (both in the liquid and solid phases). Binary Isomorphous Systems (I) Three phase region can be identified on the phase diagram: Liquid (L) , solid + liquid ( α +L), solid ( α ) Liquidus line separates liquid from liquid + solid Solidus line separates solid from liquid + solid α + L α L
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12 MSE 2090: Introduction to Materials Science Chapter 9, Phase Diagrams Binary Isomorphous Systems (II) Example of isomorphous system: Cu-Ni (the complete solubility occurs because both Cu and Ni have the same crystal structure, FCC, similar radii and electronegativity).
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13 MSE 2090: Introduction to Materials Science Chapter 9, Phase Diagrams Binary Isomorphous Systems (III) In one-component system melting occurs at a well-defined melting temperature. In multi-component systems melting occurs over the range of temperatures , between the solidus and liquidus lines.
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This note was uploaded on 02/14/2012 for the course MSE 2090 taught by Professor Leoindzhiglei during the Fall '10 term at UVA.

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Chapter 9_Part_3 - Binary Isomorphous Systems (I)...

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