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A Model for Boundary Diffusion Controlled Creep in Polycrystalline Materials

Coble, R. L.·1963·Journal of Applied Physics

Abstract

The creep rate (ė) predicted by the boundary diffusion (Db) model is ė≃150σDbWΩ/(GS)3kT, where σ is the stress, W is the boundary width, (GS) is the average grain size, and Ω is vacancy volume. The stress dependence is the same as the lattice diffusion model, given by C. Herring, while the grain size dependence and the numerical constant are greater for boundary diffusion. Discussion of the mechanism of creep in polycrystalline alumina is based on the differences between the lattice and boundary diffusion models.

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Metadata

Authors
Coble, R. L.
Venue
Journal of Applied Physics
Published
1963-06-01
Volume
34
Issue
6
Pages
1679-1682
ISSN
  • 0021-8979 (ISSN-L)
  • 1089-7550
OpenAlex
W1994116266
Cited by
2,333
References
3
FWCI
15.65
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: A Model for Boundary Diffusion Controlled Creep in Polycrystalline Materials. https://app.cochat.ai/papers/10.1063/1.1702656
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Coble, R. L. (1963). A Model for Boundary Diffusion Controlled Creep in Polycrystalline Materials. Journal of Applied Physics. https://doi.org/10.1063/1.1702656

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