Additive manufacturing of ceramic matrix composites based on carbon fiber reinforced PEEK by material extrusion technology : Design based deformation mechanisms

DOI zum Zitieren der Version auf EPub Bayreuth: https://doi.org/10.15495/EPub_UBT_00009411
URN to cite this document: urn:nbn:de:bvb:703-epub-9411-8

Title data

Freudenberg, Wolfgang ; Werner, Felix ; Friedel, Max ; Langhof, Nico ; Ruckdäschel, Holger ; Schafföner, Stefan:
Additive manufacturing of ceramic matrix composites based on carbon fiber reinforced PEEK by material extrusion technology : Design based deformation mechanisms.
In: Open Ceramics. Vol. 26 (1 June 2026) . - 100973.
ISSN 2666-5395
DOI der Verlagsversion: https://doi.org/10.1016/j.oceram.2026.100973

	Format: PDF Name: 1-s2.0-S2666539526000660-main.pdf Version: Published Version Available under License Creative Commons BY 4.0: Attribution
	Download (13MB)

Project information

Project title:	Project's official title Project's id Entwicklung und Charakterisierung additiv gefertigter thermoplast-basierter kurz- und endlosfaserverstärker C/C-SiC Verbundkeramiken 461938713 Open Access Publizieren No information
Project financing:	Deutsche Forschungsgemeinschaft

Abstract

This study explores the deformation mechanisms during the fabrication of carbon fiber reinforced ceramic matrix composites (CMC) using a modified liquid silicon infiltration (LSI) process. Starting from additively manufactured carbon fiber reinforced polymers (CFRP) components based on carbon fiber reinforced polyetheretherketone (CF-PEEK). The processing included thermal crosslinking, pyrolysis, and silicon infiltration. A gear wheel geometry was used to evaluate deformation effects to define four shape stability criteria and finally to predict the deformations. Key factors influencing deformation were identified, including anisotropic fiber orientation, infill density, and thermal crosslinking efficiency. Three distinct deformation categories were determined: unavoidable shrinkage-induced deformation, distortion due to internal stress, and severe shape loss caused by insufficient gas release during pyrolysis. Finite element simulations qualitatively predicted and correlated the deformation behavior with the experimental results. The study demonstrated how optimized slicing strategies and controlled processing can minimize deformation, enabling more reliable and reproducible near-net-shape manufacturing of complex CMC components.

Further data

Item Type:	Article in a journal
Keywords:	Additive manufacturing (AM); Material extrusion (MEX); Process-induced deformation
DDC Subjects:	600 Technology, medicine, applied sciences > 620 Engineering
Institutions of the University:	Faculties > Faculty of Engineering Science > Chair Ceramic Materials > Chair Ceramic Materials - Univ.-Prof. Dr.-Ing. Stefan Schafföner Profile Fields > Advanced Fields > High Pressure and High Temperature Research Research Networks > Materials and Energy Faculties Faculties > Faculty of Engineering Science Faculties > Faculty of Engineering Science > Chair Ceramic Materials Profile Fields Profile Fields > Advanced Fields Research Networks
Language:	English
Originates at UBT:	Yes
URN:	urn:nbn:de:bvb:703-epub-9411-8
Date Deposited:	23 Jun 2026 13:28
Last Modified:	23 Jun 2026 14:24
URI:	https://epub.uni-bayreuth.de/id/eprint/9411

Download Statistics

Download Statistics

Download Statistics

Downloads

Downloads per month over past year