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Processing and Characterization of Carbon Fiber Reinforced Ceramic Nanocomposites

机译：碳纤维增强陶瓷纳米复合材料的加工与表征

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摘要

Mechanical properties, physical properties, and microstructure of the carbon fibers reinforced ceramic matrix nanocomposites have been investigated. The matrix was derived from the pyrolysis of SILACERM™ NCP-200 with the addition of nanosize SiC powder. Slurry infiltration was adopted for the process and multi-impregnation was applied to densify the composites. In order to further enhance the density of the composites, the heat treatment over 1800℃ was used. Mechanical properties of the composites with and without the addition of nanosize SiC were compared; three-point bending was employed to evaluate the influence of the addition of nanosize ceramic powder on the mechanical property of the composites. Void formation during pyrolysis process was studied, and the effect of void on the mechanical property was also investigated. Microstructure of the fracture surface under three-point bending test was examined by SEM; the role of nanosize ceramic powder on the fracture propagation during three-point bending test was also been examined. Moreover, X-ray was used to study the evolution of crystalline phase at different temperatures.
机译：研究了碳纤维增强陶瓷基纳米复合材料的机械性能，物理性能和微观结构。该基质来自SILACERM™NCP-200的热解，并添加了纳米级SiC粉末。该工艺采用淤浆渗透法，并采用多次浸渍法使复合材料致密化。为了进一步提高复合材料的密度，采用了1800℃以上的热处理。比较了添加和不添加纳米尺寸SiC的复合材料的机械性能；采用三点弯曲法评价了纳米陶瓷粉的添加对复合材料力学性能的影响。研究了热解过程中空洞的形成，并研究了空洞对机械性能的影响。用扫描电镜（SEM）检查了在三点弯曲试验下的断裂表面的显微组织。还研究了纳米陶瓷粉在三点弯曲试验过程中对断裂扩展的作用。此外，X射线用于研究不同温度下晶相的演变。

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  • 来源
  • 会议地点 Osaka(JP);Osaka(JP);Osaka(JP);Osaka(JP)
  • 作者

    N.H. Tai; K.P. Lee; H. Hocheng; C.S. Liu;

  • 作者单位

    Materials Science Center, National Tsing-Hua Univ., Taiwan, R.O. China;

    Materials Science Center, National Tsing-Hua Univ., Taiwan, R.O. China;

    Department of Power Mechanical Engineering, National Tsing-Hua Univ., Taiwan, R.O. China;

    Department of Power Mechanical Engineering, National Tsing-Hua Univ., Taiwan, R.O. China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 TQ174.58;
  • 关键词

    carbon/ceramic composites; nanocomposites;

    机译：碳/陶瓷复合材料；纳米复合材料;

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