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Reichert, Florian ; Langhof, Nico ; Krenkel, Walter:
Influence of Thermal Fiber Pretreatment on Microstructure and Mechanical Properties of C/C-SiC with Thermoplastic Polymer-Derived Matrices.
In: Advanced Engineering Materials.
Bd. 17
(2015)
Heft 8
.
- S. 1119-1126.
ISSN 1527-2648
DOI: https://doi.org/10.1002/adem.201500193
Abstract
wo thermoplastic matrices, polyetheretherketone (PEEK) and polyetherimide (PEI), are examined in this work in terms of their suitability as carbon precursors for C/C-SiC composites. The carbon fibers are pretreated between 400 and 1600 °C in nitrogen atmosphere to modify the surface functionality, which was characterized with XPS. An analysis of the C/C-SiC composition shows an increasing SiC content as a function of the increased fiber pretreatment temperature and the polymer precursor. Bending tests of C/C-SiC composites exhibit enhanced fiber-pull-out effects at a fiber pretreatment temperatures from 400 to 800 °C.