Mechanisms of volume diffusion in metals near the Debye temperature

The paper offers a phenomenological model of volume self-diffusion and interstitial diffusion at high (T > TD) and low (T  TD experiment and show a dramatic increase in the activation energy at T  TD) and below (T  TD diffusion can be described in localized melting terms.•At T ...

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Bibliographic Details
Published in:Materials chemistry and physics 2018-11, Vol.219, p.273-277
Main Authors: Smirnova, E.S., Chuvil'deev, V.N., Nokhrin, A.V.
Format: Article
Language:English
Subjects:
Activation energy
BCC metals
Crystal structure
Debye temperature
Diffusion
Metals and alloys
Self diffusion
Specific heat
Temperature
Variations
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Summary:The paper offers a phenomenological model of volume self-diffusion and interstitial diffusion at high (T > TD) and low (T  TD experiment and show a dramatic increase in the activation energy at T  TD) and below (T  TD diffusion can be described in localized melting terms.•At T 
ISSN:0254-0584
1879-3312
DOI:10.1016/j.matchemphys.2018.08.047