büt4. The following figure shows a plot of the logarithm (to the base 10) of the diffusion coefficient versus reciprocal of the absolute temperature, for the 4 - diffusion of iron in chromium. Determine values for the activation energy and preexponential. R = the gas constant, 8.31 J/mol.K or 8.62 x 10-5 eV/atom.K 10-15 n coefficient (m²/s)

büt4. The following figure shows a plot of the logarithm (to the base 10) of the diffusion coefficient versus reciprocal of the absolute temperature, for the 4 - diffusion of iron in chromium. Determine values for the activation energy and preexponential. R = the gas constant, 8.31 J/mol.K or 8.62 x 10-5 eV/atom.K 10-15 n coefficient (m²/s)

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Atomic diffusion in solids

In material science, diffusion can take place in solid, liquid, and gases. In solids, atomic diffusion can take place with the help of thermally activated and randomly vibrating atoms. The atomic diffusion in solids is complex and very slow in comparison to atomic diffusion in liquids and gases because the interatomic distance between the atoms is smaller in solids as compared to liquids and gases.

Question

büt4. The following figure shows a plot of
the logarithm (to the base 10) of the
diffusion coefficient versus reciprocal of
the absolute temperature, for the
4 -
diffusion of iron in chromium. Determine
values for the activation energy and
preexponential.
R = the gas constant, 8.31 J/mol.K or 8.62
x 10-5 eV/atom.K
10-15
10-16
0.55
0.60
0.65
0.70
Reciprocal temperature (1000/K)
Diffusion coefficient (m2/s)

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