It is determined by experiments that the Kirkendall markers placed at the interface of a diffusion couple,
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It is determined by experiments that the Kirkendall markers placed at the interface of a diffusion couple, formed by welding a thin plate of metal A to a similar plate of metal B, move with a velocity of 4.5 x 10 -12 m/s toward the A component when the composition X A = 0.38 and the concentration gradient, dn A /dx, is 2.5 x 10 2 per m. The chemical diffusion coefficient D̃ under these conditions is 3.25 x 10 -14 m 2 /s. Determine the values of the intrinsic diffusivities of the two components.
Related Book For
Probability & Statistics for Engineers & Scientists
ISBN: 978-0130415295
7th Edition
Authors: Ronald E. Walpole, Raymond H. Myers, Sharon L. Myers, Keying
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