The effects of severe temperature changes and high humidity on porous CFRP

• Autorzy: Dinnebier H. , Ehrlich I.
• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

porosity; voids; computed tomography; CFRP

PL

porowatość; puste przestrzenie; tomografia komputerowa; CFRP

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2014
• Tom: Vol. 67, nr 1
• Strony: 14--20
• Opis fizyczny: Bibliogr. 11 poz., rys., tab.

Twórcy

autor

Dinnebier H.

• Wehrwissenschaftliches Institut für Werk- und Betriebsstoffe - WIWeB, Institutsweg 1, D-85435 Erding, Germany

autor

Ehrlich I.

• Ostbayerische Technische Hochschule Regensburg, Fakultät Maschinenbau, Galgenbergstr. 30, D-93053 Regensburg, Germany

Bibliografia

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