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Please be clear 2) Nickel (Ni) is to be diffused into pure copper at 675C. If the surface concentration is maintained to be 0.2wt%Ni, What

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2) Nickel (Ni) is to be diffused into pure copper at 675C. If the surface concentration is maintained to be 0.2wt%Ni, What will be the concentration 2mm from the surface after m2/s. The diffusion coefficient for nickel in copper at 675C is 1.91011

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