The following questions refer to these phase diagrams shown here: Temperature C 2200 2000 1800 1600...
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The following questions refer to these phase diagrams shown here: Temperature C 2200 2000 1800 1600 1400 1200 1000 0 (HD HN 40 60 Composition (wt% 0 ' T 18 ' V Temperature (°C) 2800 2400 2000 MgO (56) MgO (ss) Liquid Composition (mol% Al₂O₂) 20 1600 Mg(s) + MBAI 04 (58) 40 50 80 T 5000 Liquid MgAl-0 (ssl +Liquid Al2O3 4500 Liquid 4000 3500 MgAl (58) 3000 MEAL-O (85) 2500 Al-03 Temperature (°F) 1200 100 D 20 (V) (MgO) 40 60 Composition (wt% Al,0) 2000 80 100 Adapted from B. Halstedt, Thermodynamic Assessment of the System MgO AO Soc, 7516], 1992, p. 1502. Reprinted by permission of the American Ceramic Society (NOx) Am. Ceram. For the metallic system at 50 wt% V and 1400°C (cooled from 2000°C): A. Sketch the alloy microstructure. B. Label all phase(s) presented in your sketch. For the ceramic system: A. What is/are the intermediate compound(s) presented? B. What is/are their melting temperature(s)? Don't forget the unit. For the ceramic system: A. How many eutectic and eutectoid compositions are presented? B. For each of these compositions, where are they located in the diagram (composition & temperature)? Don't forget proper units. The following questions refer to these phase diagrams shown here: Temperature C 2200 2000 1800 1600 1400 1200 1000 0 (HD HN 40 60 Composition (wt% 0 ' T 18 ' V Temperature (°C) 2800 2400 2000 MgO (56) MgO (ss) Liquid Composition (mol% Al₂O₂) 20 1600 Mg(s) + MBAI 04 (58) 40 50 80 T 5000 Liquid MgAl-0 (ssl +Liquid Al2O3 4500 Liquid 4000 3500 MgAl (58) 3000 MEAL-O (85) 2500 Al-03 Temperature (°F) 1200 100 D 20 (V) (MgO) 40 60 Composition (wt% Al,0) 2000 80 100 Adapted from B. Halstedt, Thermodynamic Assessment of the System MgO AO Soc, 7516], 1992, p. 1502. Reprinted by permission of the American Ceramic Society (NOx) Am. Ceram. For the metallic system at 50 wt% V and 1400°C (cooled from 2000°C): A. Sketch the alloy microstructure. B. Label all phase(s) presented in your sketch. For the ceramic system: A. What is/are the intermediate compound(s) presented? B. What is/are their melting temperature(s)? Don't forget the unit. For the ceramic system: A. How many eutectic and eutectoid compositions are presented? B. For each of these compositions, where are they located in the diagram (composition & temperature)? Don't forget proper units.
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