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Additive manufacturing of carbon fiber reinforced ceramic matrix composites based on fused filament fabrication

Titelangaben

Freudenberg, Wolfgang ; Wich, Felix ; Langhof, Nico ; Schafföner, Stefan:
Additive manufacturing of carbon fiber reinforced ceramic matrix composites based on fused filament fabrication.
In: Journal of the European Ceramic Society. Bd. 42 (2022) Heft 4 . - S. 1822-1828.
ISSN 0955-2219
DOI: https://doi.org/10.1016/j.jeurceramsoc.2021.12.005

Angaben zu Projekten

Projekttitel:
Offizieller Projekttitel
Projekt-ID
Entwicklung und Charakterisierung additiv gefertigter thermoplast-basierter kurz- und endlosfaserverstärker C/C-SiC Verbundkeramiken
Ohne Angabe

Projektfinanzierung: Deutsche Forschungsgemeinschaft

Abstract

For the first time, carbon fiber reinforced ceramic matrix composites (CMC) were successfully fabricated by additive manufacturing (AM) using the fused filament fabrication (FFF) technology, filaments (“CF-PEEK”) with thermoplastic polyetheretherketone (PEEK) as the matrix and C-precursor, and carbon short-fibers (< 250 μm) as reinforcements. In order to prevent a re-melting of the as-printed CFRPs (C-fiber reinforced plastics) during pyrolysis at 1000 °C in N2ensuring the freedom of design and complex parts, a prior crosslinking step at 325 °C with a dwell time of 48 h in air was introduced to stabilize and crosslink the CFRP. Due to the stabilization and the printing of degassing channels for the pyrolysis, near net shape and complex CMC parts with different C-fiber orientations (0°; ±45°; 90°) were obtained by the liquid siliconization infiltration process (LSI). The manufactured C/C-SiC parts were characterized regarding their microstructure and mechanical properties. The reinforcing C-fibers were successfully protected during the LSI-process and flexural strengths of almost 60 MPa were obtained.

Weitere Angaben

Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Institutionen der Universität: Fakultäten
Fakultäten > Fakultät für Ingenieurwissenschaften
Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Keramische Werkstoffe
Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Keramische Werkstoffe > Lehrstuhl Keramische Werkstoffe - Univ.-Prof. Dr.-Ing. Stefan Schafföner
Titel an der UBT entstanden: Ja
Themengebiete aus DDC: 600 Technik, Medizin, angewandte Wissenschaften
600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften
Eingestellt am: 31 Mär 2023 09:26
Letzte Änderung: 31 Mär 2023 09:26
URI: https://eref.uni-bayreuth.de/id/eprint/75737