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The solid state diffusion characteristics in the Cu(Al) solid solution phase, was investigated in the temperature range of 1023–1223 K using single phase bulk diffusion couples between pure Cu/Cu- 10 at.% Al. The interdiffusion coefficients, D, were calculated using Boltzmann–Matano method and Hall’s method from the concentration profiles of the couples that were determined using EPMA. The interdiffusion coefficients (D) calculated ranges between 1.39 X 10−14 and 3.97 X 10−13 m2/s in the temperature range of 1023 to 1223 K. 

The interdiffusion coefficient for copper in aluminium at 500°C and 600°C are 4 × 10–14 ms–1 and 8 × 10–13 m2 s–1.

Answer: (180 to 220)

Answerd on:2019-06-25 Answerd By:avi738

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