Homework_5_Key_F10

Homework_5_Key_F10 - GLY 4200 Homework Exercise 5 Name KEY...

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GLY 4200 Name KEY Homework Exercise 5 Binary Phase Diagrams - Eutectic Behavior 1. On the attached diagram, outline each liquidus line in green , each solidus line in brown . 2. Starting at points A and B, trace the cooling behavior of each melt down to 700°C. Show the path followed by the liquid in red , the path followed by the solid in blue . Then answer the following questions for: 2A: a) At what temperature does the first crystal appear? 960°C b) What is the composition of the first crystal? NaF c) At what temperature does the first crystal of NaMgF 3 appear? 830°C d) At what temperature does the liquid disappear? 830°C e) What is the composition of the final liquid phase? 50% NaF, 50% NaMgF 3 f) What is the composition of the final solid mixture? (Phases present and percent of each) 80% NaF, 20% NaMgF 3 2B: a) At what temperature does the first crystal appear? 1020°C b) What is the composition of the first crystal? NaMgF 3 c) At what temperature does the first crystal of NaMgF
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Homework_5_Key_F10 - GLY 4200 Homework Exercise 5 Name KEY...

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