Compare the Cu-Ni binary phase diagram with the Al2O3-Cr2O3 binary phase diagram. Why are they so similar?

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Compare the Cu-Ni binary phase diagram with the Al2O3-Cr2O3 binary phase diagram.

Why are they so similar?

HINT: Review the Hume-Rothery rules.

2500
20
40
60
80
100
1600
Liquid (L)
2400E
2800
1500
2330 °C
Liquid
1453°C
2300
2600
1400
2200
Lta
Solidus line
Liquidus line
2400
1300
a +L
2100
B
2035°C
Solid (a) [Al,,CLO,1
1200
2200
2000
1900
1100
2000
20
40
60
80
100
AIO,
Composition/mol% CLO,
1085C
Figure 4.23 Phase diagram of the aluminium oxide
(Al½O3) and chromium oxide (Cr2O3) system, for Ques-
1000
20
40
60
80
100
(Cu)
Composition (wt% Ni)
(Ni)
tions 4.9–4.12
Temperature (°C)
Temperature (F)
Termperature/®C
Transcribed Image Text:2500 20 40 60 80 100 1600 Liquid (L) 2400E 2800 1500 2330 °C Liquid 1453°C 2300 2600 1400 2200 Lta Solidus line Liquidus line 2400 1300 a +L 2100 B 2035°C Solid (a) [Al,,CLO,1 1200 2200 2000 1900 1100 2000 20 40 60 80 100 AIO, Composition/mol% CLO, 1085C Figure 4.23 Phase diagram of the aluminium oxide (Al½O3) and chromium oxide (Cr2O3) system, for Ques- 1000 20 40 60 80 100 (Cu) Composition (wt% Ni) (Ni) tions 4.9–4.12 Temperature (°C) Temperature (F) Termperature/®C
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