Abstract
The dislocations are treated as an ideal array of parallel pipes of radius and diffusivity Dp embedded in the bulk material of the diffusivity Db. The exact solution of this problem of diffusion along semi-infinite edge dislocations is presented for cubic, tetragonal, and hexagonal crystals. The solution makes it possible to evaluate the dislocation pipe radius a and the ratio of diffusivities from one experiment. It is applied to experimental data for self-diffusion in tellurium available in the literature. The results of the calculations are a dislocation pipe radius a=(1.5 0.5)x10-4 cm and an activation energy for the pipe diffusion along edge dislocations in tellurium Ep=0.80 0.05 eV. © 1970 The American Physical Society.
Recommended Citation
J. Mimkes and M. Wuttig, "Exact Solution For A Model Of Dislocation Pipe Diffusion," Physical Review B, vol. 2, no. 6, pp. 1619 - 1623, American Physical Society, Jan 1970.
The definitive version is available at https://doi.org/10.1103/PhysRevB.2.1619
Department(s)
Materials Science and Engineering
International Standard Serial Number (ISSN)
0163-1829
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2023 American Physical Society, All rights reserved.
Publication Date
01 Jan 1970
