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For the diffusion of copper in aluminum, what time will be required at 500C to produce the same diffusion result (in terms of concentration at
For the diffusion of copper in aluminum, what time will be required at 500C to produce the same diffusion result (in terms of concentration at a specific point) as for 3 h at 600C? Use the diffusion data given in the following Table (if required). Diffusing Species Q.(J/mol) O 87,400 148,000 77,000 168,000 N N Fe Fe' Cu" Al Mg Zn Mo" N' Host Metal D, (m/s) Interstitial Diffusion Fe (a or BCC) 1.1 x 10" Fe (y or FCC) 2.3 x 10-5 Fe (a or BCC) 5.0 x 10- Fe (y or FCC) 9.1 x 10" Self-Diffusion Fe (
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