DOI: 10.1063/1.1744525. Volumes of Activation for Diffusion in Solids

Volumes of Activation for Diffusion in Solids

10.1063/1.1744525

Crossref journal-article

AIP Publishing

The Journal of Chemical Physics (317)

Abstract

Activation volumes for the following simple models of lattice defects are calculated: (a) simple vacancy in a monatomic lattice, (b) simple vacancy with elastic theory of relaxation, (c) Schottky defect in an ionic crystal with dielectric theory of relaxation, (d) surface tension model of a vacancy in a metal, (e) elastic sphere model of an interstitial atom, and (f) strain energy theory of defect motion. The calculations are compared with experimental measurements. The comparison is satisfactory in many cases. In particular, it is observed that most of the data can be represented by the equation ΔV=4βΔH (β=compressibility, ΔH=activation energy), and that an equation of this type can be derived from several of the models. This equation can be used with a result of Lawson's to derive Zener's expression for the activation entropy of diffusion.

Bibliography

Keyes, R. W. (1958). Volumes of Activation for Diffusion in Solids. The Journal of Chemical Physics, 29(3), 467â475.

Authors 1

Robert W. Keyes (first)

References 29 Referenced 136

{'key': '2024020818090266000_r1'}
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{'key': '2024020818090266000_r4'}
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10.1063/1.1742237 / J. Chem. Phys. (1955)
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10.1039/tf9383400485 / Trans. Faraday Soc. (1938)
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{'key': '2024020818090266000_r16'}
{'key': '2024020818090266000_r17'}
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Dates

Type	When
Created	20 years, 7 months ago (Jan. 5, 2005, 9:16 p.m.)
Deposited	1 year, 6 months ago (Feb. 8, 2024, 1:49 p.m.)
Indexed	3 months, 2 weeks ago (May 3, 2025, 12:46 p.m.)
Issued	66 years, 11 months ago (Sept. 1, 1958)
Published	66 years, 11 months ago (Sept. 1, 1958)
Published Print	66 years, 11 months ago (Sept. 1, 1958)

Funders 0

None

BibTeX

@article{Keyes_1958, title={Volumes of Activation for Diffusion in Solids}, volume={29}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.1744525}, DOI={10.1063/1.1744525}, number={3}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Keyes, Robert W.}, year={1958}, month=sep, pages={467–475} }

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