(a) Construct the composition-temperature phase diagram for the Cu-Ni system. (b) What are the phases present and what are their respective compositions for each of the mixtures at the temperature given in the table below? composition (atomic % Ni) T(°C) 1120 15 1200 55 1300 60

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Please help me answer #8. A and b. Thank you!

6:16 PM Sun Oct 25
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20290008 PDF
(a) Construct the composition-temperature phase diagram for the Cu-Ni system.
(b) What are the phases present and what are their respective compositions for each of the
mixtures at the temperature given in the table below?
composition
(atomic % Ni)
T(°C)
1120
15
1200
55
1300
60
24
Transcribed Image Text:6:16 PM Sun Oct 25 33% O 20290008 PDF (a) Construct the composition-temperature phase diagram for the Cu-Ni system. (b) What are the phases present and what are their respective compositions for each of the mixtures at the temperature given in the table below? composition (atomic % Ni) T(°C) 1120 15 1200 55 1300 60 24
6:16 PM Sun Oct 25
33% O
20290008 PDF
7. The following data have been found for the system antimony-cadmium:
Weight % Cd
First break in cooling
20 37.5 47.5
50
58
70 93
100
550
461
419
400
curve
Plateau in cooling curve
630
410
410
410
410
439
295
295
321
Construct the phase diagaram, assuming that no breaks other than those actually occur in
the cooling curve. Label the diagram, and give the formula of any compound formed.
8. For the binary system Cu-Ni, the following data are available from cooling experiments:
melt composition
(atomic % Ni)
composition of solid
first formed on cooling
(atomic % Ni)
T(°C)
1100
10
1180
20
37
23
1260
40
57
1340
60
73
1410
80
87
Transcribed Image Text:6:16 PM Sun Oct 25 33% O 20290008 PDF 7. The following data have been found for the system antimony-cadmium: Weight % Cd First break in cooling 20 37.5 47.5 50 58 70 93 100 550 461 419 400 curve Plateau in cooling curve 630 410 410 410 410 439 295 295 321 Construct the phase diagaram, assuming that no breaks other than those actually occur in the cooling curve. Label the diagram, and give the formula of any compound formed. 8. For the binary system Cu-Ni, the following data are available from cooling experiments: melt composition (atomic % Ni) composition of solid first formed on cooling (atomic % Ni) T(°C) 1100 10 1180 20 37 23 1260 40 57 1340 60 73 1410 80 87
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