Peeling of heterogeneous thin films: Effect of bending stiffness, adhesion energy, and level of heterogeneity.
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| Title: | Peeling of heterogeneous thin films: Effect of bending stiffness, adhesion energy, and level of heterogeneity. |
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| Authors: | Garg, Ravinu1, Datla, Naresh V1 |
| Source: | Journal of Adhesion. 2019, Vol. 95 Issue 3, p169-186. 18p. |
| Subjects: | Thin film capacitors, Capacitors, Thin film devices, Heterogeneity, Cultural pluralism, Homogeneity |
| Abstract: | The peeling behaviour of a heterogeneous thin film bonded to a rigid substrate was investigated by using both experiments and finite element modeling. The enhancement in peel force was studied specifically for heterogeneous thin films with periodic stiff and compliant portions along the length. Peel tests with homogeneous thin films (uniform film thickness) showed that the maximum peel force can be observed before the onset of steady state peeling process. Moreover, this maximum peel force was observed to be a function of the bending stiffness of the film and adhesion energy at the film-substrate interface. For the heterogeneous thin films, maximum peel force can be observed either before the onset of steady state or when the peel front traverses from compliant to the stiff portion of the film. The three-dimensional finite element model, based on cohesive zone technique was developed, which provided further insight into the enhancement in peel force. The maximum force was shown to be dependent on the level of heterogeneity in addition to adhesion energy and bending stiffness as was observed with homogeneous films. The improvement in peel force was found to be prevalent at relatively low adhesion energy. This study may be helpful for the better design of homogeneous and heterogeneous thin film-substrate systems having improved bonding strength. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Adhesion is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 134830102 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Peeling of heterogeneous thin films: Effect of bending stiffness, adhesion energy, and level of heterogeneity. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Garg%2C+Ravinu%22">Garg, Ravinu</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Datla%2C+Naresh+V%22">Datla, Naresh V</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Adhesion%22">Journal of Adhesion</searchLink>. 2019, Vol. 95 Issue 3, p169-186. 18p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Thin+film+capacitors%22">Thin film capacitors</searchLink><br /><searchLink fieldCode="DE" term="%22Capacitors%22">Capacitors</searchLink><br /><searchLink fieldCode="DE" term="%22Thin+film+devices%22">Thin film devices</searchLink><br /><searchLink fieldCode="DE" term="%22Heterogeneity%22">Heterogeneity</searchLink><br /><searchLink fieldCode="DE" term="%22Cultural+pluralism%22">Cultural pluralism</searchLink><br /><searchLink fieldCode="DE" term="%22Homogeneity%22">Homogeneity</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The peeling behaviour of a heterogeneous thin film bonded to a rigid substrate was investigated by using both experiments and finite element modeling. The enhancement in peel force was studied specifically for heterogeneous thin films with periodic stiff and compliant portions along the length. Peel tests with homogeneous thin films (uniform film thickness) showed that the maximum peel force can be observed before the onset of steady state peeling process. Moreover, this maximum peel force was observed to be a function of the bending stiffness of the film and adhesion energy at the film-substrate interface. For the heterogeneous thin films, maximum peel force can be observed either before the onset of steady state or when the peel front traverses from compliant to the stiff portion of the film. The three-dimensional finite element model, based on cohesive zone technique was developed, which provided further insight into the enhancement in peel force. The maximum force was shown to be dependent on the level of heterogeneity in addition to adhesion energy and bending stiffness as was observed with homogeneous films. The improvement in peel force was found to be prevalent at relatively low adhesion energy. This study may be helpful for the better design of homogeneous and heterogeneous thin film-substrate systems having improved bonding strength. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Adhesion is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1080/00218464.2017.1396215 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 18 StartPage: 169 Subjects: – SubjectFull: Thin film capacitors Type: general – SubjectFull: Capacitors Type: general – SubjectFull: Thin film devices Type: general – SubjectFull: Heterogeneity Type: general – SubjectFull: Cultural pluralism Type: general – SubjectFull: Homogeneity Type: general Titles: – TitleFull: Peeling of heterogeneous thin films: Effect of bending stiffness, adhesion energy, and level of heterogeneity. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Garg, Ravinu – PersonEntity: Name: NameFull: Datla, Naresh V IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 02 Text: 2019 Type: published Y: 2019 Identifiers: – Type: issn-print Value: 00218464 Numbering: – Type: volume Value: 95 – Type: issue Value: 3 Titles: – TitleFull: Journal of Adhesion Type: main |
| ResultId | 1 |
