TY  - JOUR
A1  - Dinnebier, Heinrich
A1  - Ehrlich, Ingo
T1  - The effects of severe temperature changes and high humidity on porous CFRP
T2  - Journal of Achievements in Materials and Manufacturing Engineering (JAMME)
N2  - 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.
Y1  - 2014
UR  - https://opus4.kobv.de/opus4-oth-regensburg/frontdoor/index/index/docId/1504
VL  - 67
IS  - 1
SP  - 14
EP  - 20
ER  -