Paul, Aloke and Laurila, Tomi and Divinski, Sergiy (2017) Defects, Driving Forces and Definitions of Diffusion Coefficients in Solids. [Book Chapter]
Full text not available from this repository.Abstract
Defects assist the diffusion process, whereas driving forces influence the rate of diffusion depending on the thermodynamics of alloying, diffusion mechanisms, diffusion paths, and defect production. Different types of diffusion are defined based on defects assisting the diffusion process and whether atomic transport occurs in the absence or presence of an additional driving force different from purely entropic one. In this chapter, different types of zero-dimensional (point defects), one-dimensional (edge and screw dislocations), two-dimensional (grain and phase boundaries, surfaces), and three-dimensional (voids) defects are introduced. The origins of internal (chemical) and external (electric current) driving forces are discussed. Based on defect types and driving forces, different types of diffusion coefficients are introduced.
| Item Type: | Book Chapter |
|---|---|
| Publisher: | Elsevier |
| Additional Information: | The copyright for this article belongs to the Elsevier. |
| Keywords: | Atomic diffusion mechanism; Defects in ionic solids; Defects in ordered phases; Dislocations; Grain boundaries (high angle/low angle); Grain boundary diffusion; Impurity diffusion; Interdiffusion; Interfaces; Interstitials; Intrinsic diffusion; Pipe diffusion; Self-diffusion; Stress and electric current; Surface diffusion; Surfaces; Thermodynamic driving force; Tracer diffusion; Vacancies |
| Department/Centre: | Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy) |
| Date Deposited: | 29 May 2022 08:35 |
| Last Modified: | 31 May 2022 00:58 |
| URI: | https://eprints.iisc.ac.in/id/eprint/72793 |
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