Novel measuring method for prepreg processability of oxide fiber ceramic matrix composites

Title data

Lindner, Felix ; Puchas, Georg ; Schafföner, Stefan:
Novel measuring method for prepreg processability of oxide fiber ceramic matrix composites.
In: Composites Part A: Applied Science and Manufacturing. Vol. 162 (2022) . - 107131.
ISSN 1878-5840
DOI: https://doi.org/10.1016/j.compositesa.2022.107131

Official URL:

Abstract in another language

In this study, the processing behavior of pre-impregnated fabrics (prepregs) for the fabrication of ceramic matrix composites (CMC), specifically oxide fiber composites (OFC), was investigated. The evaluation of rheological slurry properties alone proved to be insufficient for the assessment of their suitability for the cold roll lamination process used in this work. Therefore, a novel testing method was developed, which determined the behavior of a prepreg stack in process-oriented conditions. This provided qualitative information not only on the squeeze flow of the slurry, but also on its ability to maintain this imposed level of compaction with no major rebounding throughout the following processing steps. Tests were performed with three different slurries and the results obtained corresponded well with the fabrication of full-scale OFC plates. Hence, the results gained by this novel method provide a more straight-forward approach for the evaluation of prepreg systems and quality control.

Further data

Item Type:	Article in a journal
Refereed:	Yes
Keywords:	ceramic matrix composites; oxide fiber composites; prepreg; lay-up process
Institutions of the University:	Faculties > Faculty of Engineering Science > Chair Ceramic Materials > Chair Ceramic Materials - Univ.-Prof. Dr.-Ing. Stefan Schafföner Faculties Faculties > Faculty of Engineering Science Faculties > Faculty of Engineering Science > Chair Ceramic Materials
Result of work at the UBT:	Yes
DDC Subjects:	600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited:	17 Aug 2022 06:57
Last Modified:	25 May 2023 06:44
URI:	https://eref.uni-bayreuth.de/id/eprint/71488