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首页> 外文会议>High temperature ceramic matrix composites 8 >FABRICATION OF SHORT FIBER REINFORCED SICN BY INJECTION MOLDING OF PRECERAMIC POLYMERS
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FABRICATION OF SHORT FIBER REINFORCED SICN BY INJECTION MOLDING OF PRECERAMIC POLYMERS

机译：陶瓷注射成型法制备短纤维增强SiCN

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摘要

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.
机译：在这项研究中，陶瓷前聚合物用作有机载体，热解后形成陶瓷基质。选择碳短纤维作为纤维材料。由于所用的陶瓷前聚合物的加工性能不足，需要与热塑性蜡和加工助剂共混。聚硅氮烯前体热解后，获得非晶硅-C-N网络作为短纤维复合材料的基质。在这项研究中，分析了不同纤维类型，级分和长度对混纺和成型的影响。使用扭矩测量来表征原料的流动能力和热稳定性。分析了所得复合材料部件的微观结构和机械性能。

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  • 会议地点 XIan(CN)
  • 作者

    A. Mueller-Koehn; J. Janik; A. Neubrand; H. Klemm; T. Moritz; A. Michaelis;

  • 作者单位

    Fraunhofer Institute for Ceramic Technologies and Systems, Dresden, Germany;

    Fraunhofer Institute for Ceramic Technologies and Systems, Dresden, Germany;

    Fraunhofer Institute for Mechanics of Materials, Freiburg, Germany;

    Fraunhofer Institute for Ceramic Technologies and Systems, Dresden, Germany;

    Fraunhofer Institute for Ceramic Technologies and Systems, Dresden, Germany;

    Fraunhofer Institute for Ceramic Technologies and Systems, Dresden, Germany;

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