The electrical resistivity of pure copper metal at 0°C is 1.6×10-8 ??m. An alloy of 1.12 atom % nickel, which is substitutional in copper, produced with this copper has an electrical resistivity at 0°C of 3×10-8 ??m. What is the electrical resistivity of an alloy produced from this copper with 3.32 atom % nickel at 0°C?

What will be an ideal response?


The resistivity of a substitutional solid solution is directly proportional to the

concentration of substitutional atoms. Using the equation that ?0 = AcNi where ?0 is the resistivity contribution due to zero dimensional defects, A is a constant to be determined and Ni c is the concentration of substitutional Ni atoms.



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