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  4. Fabrication of short fiber reinforced SiCN by injection molding of preceramic polymers
 
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2014
Conference Paper
Titel

Fabrication of short fiber reinforced SiCN by injection molding of preceramic polymers

Abstract
Pre-ceramic polymers were used as organic vehicle in this study forming a ceramic matrix after pyrolysis. Carbon short-fibers were chosen as fiber materials. Because of inadequate processing properties of the used pre-ceramic polymer blending with thermoplastic waxes and process additives was necessary. An amorphous Si-C-N network was obtained as the matrix of the short-fiber composite after pyrolysis of the polysilazene precursor. In this study the influence of different fiber types, fractions and lengths on compounding and molding has been analyzed. Torque measurements were used for characterizing the flow ability and the thermal stability of the feedstock. The resulting composite parts have been analyzed regarding their microstructure and mechanical properties.
Author(s)
Müller-Köhn, Axel
Fraunhofer-Institut für Keramische Technologien und Systeme IKTS
Janik, J.
Fraunhofer-Institut für Keramische Technologien und Systeme IKTS
Neubrand, Achim
Fraunhofer-Institut für Werkstoffmechanik IWM
Klemm, Hagen
Fraunhofer-Institut für Keramische Technologien und Systeme IKTS
Moritz, Tassilo
Fraunhofer-Institut für Keramische Technologien und Systeme IKTS
Michaelis, Alexander
Fraunhofer-Institut für Keramische Technologien und Systeme IKTS
Hauptwerk
High temperature ceramic matrix composites 8
Konferenz
International Conference on High Temperature Ceramic Matrix Composites (HTCMC) 2013
Thumbnail Image
DOI
10.1002/9781118932995.ch41
Language
English
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Fraunhofer-Institut für Keramische Technologien und Systeme IKTS
Fraunhofer-Institut für Werkstoffmechanik IWM
Tags
  • preceramic polymers

  • injection molding

  • polymer blending

  • pyrolysis

  • thermal stability

  • amorphous silicon

  • ceramic matrix compos...

  • organic polymers

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