Material science question

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Reference no: EM13900182

1. A metal A Is diffusing into another pure metal B to form an alloy. After 30 hours, the concentration of A is 3.2wt% at a distance of 1.5mm from the interface between metals A and B. The diffusion coefficient of A in B corresponding to the reaction conditions is 3.84 x 10^-11m²/s. Determine the surface concentration C_s.

The error function table is given here

Z	Erf(z)
0.30	0.3286
0.35	0.3794
0.40	0.4284
0.45	0.4755
0.50	0.5205
0.55	0.5633

Reference no: EM13900182

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