Adhesion assessment of DLC films on PET using a simple tensile tester: comparison of different theories

B. Ollivier; S. J. Dowey; S. J. Young; A. Matthews

doi:10.1163/156856195X00662

Adhesion assessment of DLC films on PET using a simple tensile tester: comparison of different theories

B. Ollivier, S. J. Dowey, S. J. Young, A. Matthews^*

^*Corresponding author for this work

Materials Engineering

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

Abstract

The adhesion of Diamond-Like Carbon (DLC) films on Poly(ethyleneterephthalate) (PET) sheet has been characterised by tensile testing, using simple equipment. Three theoretical analyses of the tensile test are described, and their validity has been studied by calculating in three different ways the adhesion of the same samples (DLC on PET). The theoretically predicted adhesion from the longitudinal strain required for coating debonding did not appear to be an appropriate indicator for coatings on polymers. An approach consisting of measuring either the minimum or the maximum crack spacing led to results which were more consistent with the literature. The adhesion of DLC films on PET has been increased by a factor of 1.8 when a 5 min argon plasma treatment is applied prior to deposition. Although quantitative results have to be considered with caution, this method is a simple and quick means of obtaining semi-quantitative results.

Original language	English
Pages (from-to)	769-784
Number of pages	16
Journal	Journal of Adhesion Science and Technology
Volume	9
Issue number	6
DOIs	https://doi.org/10.1163/156856195X00662
Publication status	Published - 1 Jan 1995

Keywords

Adhesion
DLC film
PET substrate
Simple tensile tester

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10.1163/156856195X00662

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title = "Adhesion assessment of DLC films on PET using a simple tensile tester: comparison of different theories",

abstract = "The adhesion of Diamond-Like Carbon (DLC) films on Poly(ethyleneterephthalate) (PET) sheet has been characterised by tensile testing, using simple equipment. Three theoretical analyses of the tensile test are described, and their validity has been studied by calculating in three different ways the adhesion of the same samples (DLC on PET). The theoretically predicted adhesion from the longitudinal strain required for coating debonding did not appear to be an appropriate indicator for coatings on polymers. An approach consisting of measuring either the minimum or the maximum crack spacing led to results which were more consistent with the literature. The adhesion of DLC films on PET has been increased by a factor of 1.8 when a 5 min argon plasma treatment is applied prior to deposition. Although quantitative results have to be considered with caution, this method is a simple and quick means of obtaining semi-quantitative results.",

keywords = "Adhesion, DLC film, PET substrate, Simple tensile tester",

author = "B. Ollivier and Dowey, {S. J.} and Young, {S. J.} and A. Matthews",

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T1 - Adhesion assessment of DLC films on PET using a simple tensile tester

T2 - comparison of different theories

AU - Ollivier, B.

AU - Dowey, S. J.

AU - Young, S. J.

AU - Matthews, A.

PY - 1995/1/1

Y1 - 1995/1/1

N2 - The adhesion of Diamond-Like Carbon (DLC) films on Poly(ethyleneterephthalate) (PET) sheet has been characterised by tensile testing, using simple equipment. Three theoretical analyses of the tensile test are described, and their validity has been studied by calculating in three different ways the adhesion of the same samples (DLC on PET). The theoretically predicted adhesion from the longitudinal strain required for coating debonding did not appear to be an appropriate indicator for coatings on polymers. An approach consisting of measuring either the minimum or the maximum crack spacing led to results which were more consistent with the literature. The adhesion of DLC films on PET has been increased by a factor of 1.8 when a 5 min argon plasma treatment is applied prior to deposition. Although quantitative results have to be considered with caution, this method is a simple and quick means of obtaining semi-quantitative results.

AB - The adhesion of Diamond-Like Carbon (DLC) films on Poly(ethyleneterephthalate) (PET) sheet has been characterised by tensile testing, using simple equipment. Three theoretical analyses of the tensile test are described, and their validity has been studied by calculating in three different ways the adhesion of the same samples (DLC on PET). The theoretically predicted adhesion from the longitudinal strain required for coating debonding did not appear to be an appropriate indicator for coatings on polymers. An approach consisting of measuring either the minimum or the maximum crack spacing led to results which were more consistent with the literature. The adhesion of DLC films on PET has been increased by a factor of 1.8 when a 5 min argon plasma treatment is applied prior to deposition. Although quantitative results have to be considered with caution, this method is a simple and quick means of obtaining semi-quantitative results.

KW - Adhesion

KW - DLC film

KW - PET substrate

KW - Simple tensile tester

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JO - Journal of Adhesion Science and Technology

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Adhesion assessment of DLC films on PET using a simple tensile tester: comparison of different theories

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Keywords

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