Laser Structuring and DLC Coating of Elastomers for High Performance Applications
Even though hard, low friction coatings such as diamond like carbon (DLC) would be beneficial for the performance and longevity of rubber seals, a crucial challenge remains. The elastic mismatch of rubber substrate and DLC coating prevents a fracture free coating application. In this work, a nature...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-05-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/15/9/3271 |
| _version_ | 1797503979702190080 |
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| author | Sönke Vogel Andreas Brenner Bernadette Schlüter Bernhard Blug Franziska Kirsch Tamara van Roo |
| author_facet | Sönke Vogel Andreas Brenner Bernadette Schlüter Bernhard Blug Franziska Kirsch Tamara van Roo |
| author_sort | Sönke Vogel |
| collection | DOAJ |
| description | Even though hard, low friction coatings such as diamond like carbon (DLC) would be beneficial for the performance and longevity of rubber seals, a crucial challenge remains. The elastic mismatch of rubber substrate and DLC coating prevents a fracture free coating application. In this work, a nature inspired approach is applied to render the stiff coating flexible and resilient to delamination at the same time by direct patterning. Rubber substrates were laser structured with tile patterns and subsequently DLC coated. Tensile and tribology tests were performed on structured and unstructured samples. Unstructured DLC coatings showed a crack pattern induced by the coating process, which was further fragmented by tensile stress. Coatings with tile patterns did not experience a further fragmentation under load. During continuous tribological loading, less heterogenous damage is produced for tile structured samples. The findings are ascribed to the relief of induced coating stress by the tile structure, meaning a more resilient coating. |
| first_indexed | 2024-03-10T03:58:07Z |
| format | Article |
| id | doaj.art-01aea4cb17754f25ba5a5499a9751bf9 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T03:58:07Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-01aea4cb17754f25ba5a5499a9751bf92023-11-23T08:40:47ZengMDPI AGMaterials1996-19442022-05-01159327110.3390/ma15093271Laser Structuring and DLC Coating of Elastomers for High Performance ApplicationsSönke Vogel0Andreas Brenner1Bernadette Schlüter2Bernhard Blug3Franziska Kirsch4Tamara van Roo5Chair for Laser Technology LLT, RWTH Aachen University, 52074 Aachen, GermanyFraunhofer Institute for Laser Technology, 52074 Aachen, GermanyFraunhofer Institute for Mechanics of Materials, 79108 Freiburg, GermanyFraunhofer Institute for Mechanics of Materials, 79108 Freiburg, GermanyFraunhofer Institute for Structural Durability and System Reliability LBF, 64289 Darmstadt, GermanyFraunhofer Institute for Structural Durability and System Reliability LBF, 64289 Darmstadt, GermanyEven though hard, low friction coatings such as diamond like carbon (DLC) would be beneficial for the performance and longevity of rubber seals, a crucial challenge remains. The elastic mismatch of rubber substrate and DLC coating prevents a fracture free coating application. In this work, a nature inspired approach is applied to render the stiff coating flexible and resilient to delamination at the same time by direct patterning. Rubber substrates were laser structured with tile patterns and subsequently DLC coated. Tensile and tribology tests were performed on structured and unstructured samples. Unstructured DLC coatings showed a crack pattern induced by the coating process, which was further fragmented by tensile stress. Coatings with tile patterns did not experience a further fragmentation under load. During continuous tribological loading, less heterogenous damage is produced for tile structured samples. The findings are ascribed to the relief of induced coating stress by the tile structure, meaning a more resilient coating.https://www.mdpi.com/1996-1944/15/9/3271diamond like carbonDLCtribologyrubberflexiblenature inspired |
| spellingShingle | Sönke Vogel Andreas Brenner Bernadette Schlüter Bernhard Blug Franziska Kirsch Tamara van Roo Laser Structuring and DLC Coating of Elastomers for High Performance Applications Materials diamond like carbon DLC tribology rubber flexible nature inspired |
| title | Laser Structuring and DLC Coating of Elastomers for High Performance Applications |
| title_full | Laser Structuring and DLC Coating of Elastomers for High Performance Applications |
| title_fullStr | Laser Structuring and DLC Coating of Elastomers for High Performance Applications |
| title_full_unstemmed | Laser Structuring and DLC Coating of Elastomers for High Performance Applications |
| title_short | Laser Structuring and DLC Coating of Elastomers for High Performance Applications |
| title_sort | laser structuring and dlc coating of elastomers for high performance applications |
| topic | diamond like carbon DLC tribology rubber flexible nature inspired |
| url | https://www.mdpi.com/1996-1944/15/9/3271 |
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