On mean square penetration depth in grain boundary diffusion

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)469-472
Journal / PublicationMaterials Science Forum
Volume207-209
Publication statusPublished - Feb 1996
Externally publishedYes

Link(s)

DOI

DOI
Check@CityULib
Link to Scopus https://www.scopus.com/record/display.uri?eid=2-s2.0-5344273965&origin=recordpage
Permanent Link https://scholars.cityu.edu.hk/en/publications/publication(7698c71c-6b8d-498e-b49c-0f948dd6f220).html

Abstract

The mean square penetration depth (MSPD) in grain boundary diffusion was analyzed. For a semi-infinite system with constant source concentration (the Fisher-Whipple formulation), the value of MSPD can be obtained using the approximate expression Y2 = 0.9 D′δ/D1/2 t1/2 = 1.35βx2, 104 where D′ and D are respectively the grain boundary and lattice diffusion coefficients, δ is the boundary width, t is diffusion time, β = (D′/D)δ/(2√Dt), and x2 = (4/3)Dt is the corresponding MSPD in lattice diffusion.

Research Area(s)

  • Diffusion, Grain Boundaries, Penetration Depth

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Publication fingerprints text

100
Penetration Depth Engineering
100
Grain Boundary Diff... Engineering
100
Grain Boundary Material Science
50
Lattice Diffusion Engineering
33
Diffusivity Material Science
25
Diffusion Time Engineering
25
Infinite System Engineering
25
Diffusion Coefficie... Engineering
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Citation Format(s)

[ RIS ] [ BibTeX ]
On mean square penetration depth in grain boundary diffusion. / Chou, Y. T.; Liu, C. T.
In: Materials Science Forum, Vol. 207-209, 02.1996, p. 469-472.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review