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The Effects of Severe Temperature Changes and High Humidity on Porous CFRP

  • Purpose: A route to manufacture porous carbon fiber reinforced plastic (CFRP) for study purposes is described. Design/methodology/approach: The porous CFRP is characterized using standard techniques such as matrix digestion as well as the more sophisticated method of high resolution Microfocus X-Ray Tomography (μCT). A comparison of the results of those methods is presented. The mass gains of specimens with a wide range of porosity have been measured both in constant humidity and in alternating environments. Findings: It could be shown that severe temperature changes can temporarily increase the moisture content of porous CFRP. However, after the return to a constant environment, the moisture content returns back to saturation levels. Furthermore, it could be shown by X-Ray Tomography that even under severe climatic conditions no permanent liquid water condensates inside the pores. Research limitations/implications: Using Microfocus Computed Tomography it could be shown that even after nearly a year under hot-wet conditions and more than 150 severe temperature cycles there is no liquid water detectable inside the pores. Originality/value: In this paper the effects of severe temperature changes and high humidity on porous CFRP.

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Metadaten
Author:Heinrich Dinnebier, Ingo EhrlichORCiDGND
URL / DOI:http://jamme.acmsse.h2.pl/vol67_1/6712.pdf
Parent Title (English):Proceedings of the 15th International Materials Symposium (IMSP´2014), Pamukkale University (Denizli, Turkey), 15./17. October 2014
Editor:C. Meran
Document Type:conference proceeding (article)
Language:English
Year of first Publication:2014
Release Date:2021/03/25
First Page:433
Last Page:440
Institutes:Fakultät Maschinenbau
Technologie-Campus Neustadt an der Donau
Fakultät Maschinenbau / Labor Faserverbundtechnik (LFT)
research focus:Produktion und Systeme