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Masked edge effects when measuring diffusion coefficients with the cup method

Claesson, Johan LU ; Hagentoft, C E and Wadsö, Lars LU (1994) In Polymer Engineering and Science 34(10). p.821-826
Abstract
When diffusion coefficients are measured with the cup method, the exposed area is often less than the area of the sample. Because of this masking effect the measured diffusion coefficient is overestimated. The present article presents simple formulas based on two-dimensional analytical solutions to correct for this in cylindrical cup samples. Different cases of anisotropical diffusion are dealt with. The error in the analytical solutions is determined by numerical computer simulations.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Polymer Engineering and Science
volume
34
issue
10
pages
821 - 826
publisher
John Wiley & Sons
external identifiers
  • scopus:0028434068
ISSN
1548-2634
DOI
10.1002/pen.760341007
language
English
LU publication?
yes
id
54a7daa3-a3a0-44fd-80db-dd11f0743fcb (old id 1034466)
date added to LUP
2008-02-19 08:24:11
date last changed
2017-01-01 07:24:06
@article{54a7daa3-a3a0-44fd-80db-dd11f0743fcb,
  abstract     = {When diffusion coefficients are measured with the cup method, the exposed area is often less than the area of the sample. Because of this masking effect the measured diffusion coefficient is overestimated. The present article presents simple formulas based on two-dimensional analytical solutions to correct for this in cylindrical cup samples. Different cases of anisotropical diffusion are dealt with. The error in the analytical solutions is determined by numerical computer simulations.},
  author       = {Claesson, Johan and Hagentoft, C E and Wadsö, Lars},
  issn         = {1548-2634},
  language     = {eng},
  number       = {10},
  pages        = {821--826},
  publisher    = {John Wiley & Sons},
  series       = {Polymer Engineering and Science},
  title        = {Masked edge effects when measuring diffusion coefficients with the cup method},
  url          = {http://dx.doi.org/10.1002/pen.760341007},
  volume       = {34},
  year         = {1994},
}