Diffusion of boron in nanocrystalline iron A new type of diffusion kinetics: Type C′
- 1 August 1993
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine Letters
- Vol. 68 (2) , 99-105
- https://doi.org/10.1080/09500839308240500
Abstract
Measurements of the diffusivity of boron in nanocrystalline iron are presented. It is shown that boron diffuses slower in the grain boundaries than in the lattice. The diffusion data are analysed in terms of a new type of diffusion kinetics, type C′. In type C′ kinetics, the diffuser is confined to the grain boundaries by a large segregation factor. Therefore, even though the lattice diffusion is faster than the grain-boundary diffusion, the grain-boundary diffusion coefficient is readily accessible.Keywords
This publication has 7 references indexed in Scilit:
- Segregation and diffusion of hydrogen in grain boundaries of palladiumPublished by Elsevier ,2003
- Diffusion of silver in nanocrystalline copper between 303 and 373 KActa Metallurgica, 1989
- Nanocrystalline materialsProgress in Materials Science, 1989
- Diffusion in nanocrystalline materialSolid State Communications, 1987
- Effects of the grain boundary segregants P, S, C and N on the grain boundary self-diffusivity in α-ironActa Metallurgica, 1985
- Nanocrystalline materials an approach to a novel solid structure with gas-like disorder?Physics Letters A, 1984
- Influence of dislocations on diffusion kinetics in solids with particular reference to the alkali halidesTransactions of the Faraday Society, 1961