Masked edge effects when measuring diffusion coefficients with the cup method

Johan Claesson; C E Hagentoft; Lars Wadsö

doi:10.1002/pen.760341007

Masked edge effects when measuring diffusion coefficients with the cup method

Johan Claesson, C E Hagentoft, Lars Wadsö

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Pages (from-to)	821-826
Journal	Polymer Engineering and Science
Volume	34
Issue number	10
DOIs	https://doi.org/10.1002/pen.760341007
Publication status	Published - 1994

Subject classification (UKÄ)

Materials Engineering
Building Technologies

Access to Document

10.1002/pen.760341007

Cite this

@article{54a7daa3a3a044fd80dbdd11f0743fcb,

title = "Masked edge effects when measuring diffusion coefficients with the cup method",

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 = "Johan Claesson and Hagentoft, {C E} and Lars Wads{\"o}",

year = "1994",

doi = "10.1002/pen.760341007",

language = "English",

volume = "34",

pages = "821--826",

journal = "Polymer Engineering and Science",

issn = "1548-2634",

publisher = "John Wiley & Sons Inc.",

number = "10",

}

TY - JOUR

T1 - Masked edge effects when measuring diffusion coefficients with the cup method

AU - Claesson, Johan

AU - Hagentoft, C E

AU - Wadsö, Lars

PY - 1994

Y1 - 1994

N2 - 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.

AB - 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.

U2 - 10.1002/pen.760341007

DO - 10.1002/pen.760341007

M3 - Article

SN - 1548-2634

VL - 34

SP - 821

EP - 826

JO - Polymer Engineering and Science

JF - Polymer Engineering and Science

IS - 10

ER -

Masked edge effects when measuring diffusion coefficients with the cup method

Abstract

Subject classification (UKÄ)

Access to Document

Fingerprint

Cite this