Literature by the same author
plus at Google Scholar

Bibliografische Daten exportieren
 

Shaping Thermal Transport and Temperature Distribution via Anisotropic Carbon Fiber Reinforced Composites

Title data

Lebeda, Flora ; Demleitner, Martin ; Pongratz, Annalena ; Ruckdäschel, Holger ; Retsch, Markus:
Shaping Thermal Transport and Temperature Distribution via Anisotropic Carbon Fiber Reinforced Composites.
In: ACS Omega. Vol. 9 (2024) Issue 37 . - pp. 39232-39241.
ISSN 2470-1343
DOI: https://doi.org/10.1021/acsomega.4c06558

Project information

Project financing: Andere
BayBatt

Abstract in another language

With the ongoing electrification of vehicles, thermal management is on everyone’s lips. To prevent overheating in electronic systems, new design strategies for thermal dissipation are needed. Thermally anisotropic materials enable targeted directional heat transport due to their anisotropic thermal conduction. Laminates made of unidirectionally aligned carbon fibers in a polymer matrix can be tailored regarding their in-plane anisotropy. Exposing the laminates to a temperature gradient reveals that the thermal transport is determined by their anisotropic properties. The corresponding heat flow can be visualized by IR thermography. The combination of anisotropic laminate discs into composite materials, similar to building with toy bricks, enables precise control of heat transport in the macroscopic composite materials. Thus, we achieve control of heat flow at the level of the individual components. In addition, we show that the orientation of anisotropy relative to the temperature gradient is crucial to guide the heat flow selectively. We found that the ratio of thermal anisotropy, the amount and arrangement of anisotropic components, and their positioning in the composite strongly influence heat transport. By combining all these factors, we are able to locally control the heat flow in composites by creating materials to either dissipate heat or block heat transport. The proposed concept can be extended to different shapes of building blocks in two or three dimensions.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Physical Chemistry I - Kolloidale Strukturen und Energiematerialien > Chair Physical Chemistry I- Kolloidale Strukturen und Energiematerialien - Univ.-Prof. Dr. Markus Retsch
Faculties > Faculty of Engineering Science > Chair Polymer Materials > Chair Polymer Materials - Univ.-Prof. Dr.-Ing. Holger Ruckdäschel
Profile Fields > Advanced Fields > Polymer and Colloid Science
Profile Fields > Advanced Fields > Advanced Materials
Research Institutions > Central research institutes > Bayreuth Center for Colloids and Interfaces - BZKG
Research Institutions > Central research institutes > Bayerisches Zentrum für Batterietechnik - BayBatt
Research Institutions > Affiliated Institutes > Bavarian Polymer Institute (BPI)
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 11 Oct 2024 08:19
Last Modified: 11 Oct 2024 09:29
URI: https://eref.uni-bayreuth.de/id/eprint/90628