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Increasing Heat Transfer from Metal Surfaces through Laser-Interference-Induced Microscopic Heat Sinks
With the increasing processing power of micro-electronic components and increasing spatial limitations, ensuring sufficient heat dissipation has become a crucial task. This work presents a microscopic approach to increasing the surface area through periodic surface structures. Microstructures with a...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10536493/ https://www.ncbi.nlm.nih.gov/pubmed/37763893 http://dx.doi.org/10.3390/mi14091730 |
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author | Schell, Frederic Chukwudi Okafor, Richard Steege, Tobias Alamri, Sabri Ghevariya, Savan Zwahr, Christoph Lasagni, Andrés F. |
author_facet | Schell, Frederic Chukwudi Okafor, Richard Steege, Tobias Alamri, Sabri Ghevariya, Savan Zwahr, Christoph Lasagni, Andrés F. |
author_sort | Schell, Frederic |
collection | PubMed |
description | With the increasing processing power of micro-electronic components and increasing spatial limitations, ensuring sufficient heat dissipation has become a crucial task. This work presents a microscopic approach to increasing the surface area through periodic surface structures. Microstructures with a periodic distance of 8.5 µm are fabricated via Direct Laser Interference Patterning (DLIP) on stainless steel plates with a nanosecond-pulsed infrared laser and are characterized by their developed interfacial area ratio. The optimal structuring parameters for increasing the surface area were investigated, reaching peak-to-valley depths up to 12.8 µm and increasing surface area by up to 394%. Heat dissipation in a natural convection environment was estimated by measuring the output voltage of a Peltier element mounted between a hot plate and a textured sample. The resulting increase in output voltage compared to an unstructured sample was correlated to the structure depth and developed interfacial area ratio, finding a maximum increase of 51.4%. Moreover, it was shown that the output voltage correlated well with the structure depth and surface area. |
format | Online Article Text |
id | pubmed-10536493 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-105364932023-09-29 Increasing Heat Transfer from Metal Surfaces through Laser-Interference-Induced Microscopic Heat Sinks Schell, Frederic Chukwudi Okafor, Richard Steege, Tobias Alamri, Sabri Ghevariya, Savan Zwahr, Christoph Lasagni, Andrés F. Micromachines (Basel) Article With the increasing processing power of micro-electronic components and increasing spatial limitations, ensuring sufficient heat dissipation has become a crucial task. This work presents a microscopic approach to increasing the surface area through periodic surface structures. Microstructures with a periodic distance of 8.5 µm are fabricated via Direct Laser Interference Patterning (DLIP) on stainless steel plates with a nanosecond-pulsed infrared laser and are characterized by their developed interfacial area ratio. The optimal structuring parameters for increasing the surface area were investigated, reaching peak-to-valley depths up to 12.8 µm and increasing surface area by up to 394%. Heat dissipation in a natural convection environment was estimated by measuring the output voltage of a Peltier element mounted between a hot plate and a textured sample. The resulting increase in output voltage compared to an unstructured sample was correlated to the structure depth and developed interfacial area ratio, finding a maximum increase of 51.4%. Moreover, it was shown that the output voltage correlated well with the structure depth and surface area. MDPI 2023-09-02 /pmc/articles/PMC10536493/ /pubmed/37763893 http://dx.doi.org/10.3390/mi14091730 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Schell, Frederic Chukwudi Okafor, Richard Steege, Tobias Alamri, Sabri Ghevariya, Savan Zwahr, Christoph Lasagni, Andrés F. Increasing Heat Transfer from Metal Surfaces through Laser-Interference-Induced Microscopic Heat Sinks |
title | Increasing Heat Transfer from Metal Surfaces through Laser-Interference-Induced Microscopic Heat Sinks |
title_full | Increasing Heat Transfer from Metal Surfaces through Laser-Interference-Induced Microscopic Heat Sinks |
title_fullStr | Increasing Heat Transfer from Metal Surfaces through Laser-Interference-Induced Microscopic Heat Sinks |
title_full_unstemmed | Increasing Heat Transfer from Metal Surfaces through Laser-Interference-Induced Microscopic Heat Sinks |
title_short | Increasing Heat Transfer from Metal Surfaces through Laser-Interference-Induced Microscopic Heat Sinks |
title_sort | increasing heat transfer from metal surfaces through laser-interference-induced microscopic heat sinks |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10536493/ https://www.ncbi.nlm.nih.gov/pubmed/37763893 http://dx.doi.org/10.3390/mi14091730 |
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