Certain ceramic materials such as those based on oxides of yttrium, barium, and copper have been shown
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Temperature T ( ˚C)Diffusion Coefficient D (cm2/s)
500............................................2.77 × 10-6
600............................................5.2 × 10-6
650............................................9.24 × 10-6
Assume that these data are sufficient to make a straight line fit for the relationship between ln(D) and 1/T and calculate the values of the activation energy for diffusion of oxygen in YBa2Cu3O7 containing no silver.
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Essentials of Materials Science and Engineering
ISBN: 978-1111576851
3rd edition
Authors: Donald R. Askeland, Wendelin J. Wright
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