Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Bend Deformation Behavior of Silicon Carbide Reticulated Porous Ceramics

  • Zhu, Xinwen (National Institute for Materials Science) ;
  • Sakka, Yoshio (National Institute for Materials Science) ;
  • Tan, Shouhong (Shanghai Institute of Ceramics, Chinese Academy of Sciences) ;
  • Jiang, Dongliang (Shanghai Institute of Ceramics, Chinese Academy of Sciences)
  • Published : 2006.09.24
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Abstract

The deformation behavior under three-point bend test was found to depend on the loading uniformity and the macrostructure for SiC reticulated porous ceramics (RPCs). However, this dependence of loading uniformity is alleviated by improved macrostructure with fewer flaws and clogged pores. Even, this dependence becomes less important as the struts become thicker and stronger. The bend result of RPCs with highly uniform macrostructure is in excellent agreement with the GA (Gibson and Ashby) model, but the one with un-uniform macrostructure deviates from the GA model, suggesting that the macrostructure plays an important role in deformation behavior of RPCs under bend.

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