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Relationship between the tensile modulus and the thermal conductivity perpendicular and in fiber direction of PAN-based carbon fibers

Title data

Bard, Simon ; Tran, Thomas ; Schönl, Florian ; Rosenfeldt, Sabine ; Demleitner, Martin ; Ruckdäschel, Holger ; Retsch, Markus ; Altstädt, Volker:
Relationship between the tensile modulus and the thermal conductivity perpendicular and in fiber direction of PAN-based carbon fibers.
In: Carbon Letters. (2023) .
ISSN 2233-4998
DOI: https://doi.org/10.1007/s42823-023-00568-2

Official URL: Volltext

Abstract in another language

A thorough knowledge and understanding of the structure–property relationship between thermal conductivity and C-fiber morphology is important to estimate the behavior of carbon fiber components, especially under thermal loading. In this paper, the thermal conductivities of different carbon fibers with varying tensile modulus were analyzed perpendicular and parallel to the fiber direction. Besides the measurement of carbon fiber reinforced polymers, we also measured the thermal conductivity of single carbon fibers directly. The measurements clearly proved that the thermal conductivity increased with the tensile modulus both in fiber and perpendicular direction. The increase is most pronounced in fiber direction. We ascribed the increase in tensile modules and thermal conductivity to increasing anisotropy resulting from the orientation of graphitic domains and microvoids.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: Anisotropy; Thermal properties; Mechanical properties; Carbon fibres
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Physical Chemistry I > Chair Physical Chemistry I - Univ.-Prof. Dr. Markus Retsch
Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Former Professors > Chair Polymer Materials - Univ.-Prof. Dr.-Ing. Volker Altstädt
Faculties > Faculty of Engineering Science > Chair Polymer Materials > Chair Polymer Materials - Univ.-Prof. Dr.-Ing. Holger Ruckdäschel
Research Institutions > Affiliated Institutes > Bavarian Polymer Institute (BPI)
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Physical Chemistry I
Faculties > Faculty of Engineering Science > Former Professors
Faculties > Faculty of Engineering Science > Chair Polymer Materials
Research Institutions
Research Institutions > Affiliated Institutes
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 500 Natural sciences
500 Science > 540 Chemistry
Date Deposited: 24 Nov 2023 07:20
Last Modified: 14 Feb 2024 08:57
URI: https://eref.uni-bayreuth.de/id/eprint/87853