A copper-silver alloy of composition 30 wt% Ag-70 wr% Cu is at 7800C (Just above the eutectic temperature). (a) What are the phases present? (b) Determine the mass fractions of each phase given in part (a) 20 40 1200 1000 -Liquidus Liquid

A copper-silver alloy of composition 30 wt% Ag-70 wr% Cu is at 7800C (Just above the eutectic temperature). (a) What are the phases present? (b) Determine the mass fractions of each phase given in part (a) 20 40 1200 1000 -Liquidus Liquid

Elements Of Electromagnetics

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ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.

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A copper-silver alloy of composition 30 wt% Ag-70 wt% Cu is at 7800C (Just above the eutectic temperature).
(a) What are the phases present?
(b) Determine the mass fractions of each phase given in part (a)
20
40
1200
1000
800
600
400
200
Temperature (°C)
(Cu)
8.0
(CAE)
-Solidus
Solvus
20
-Liquidus
779°C (TE)
40
60
Composition (wt% Ag)
Liquid

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