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Estimation on Elastic Properties of SiC Ceramic Honeycomb Substrate

SiC 세라믹 하니컴 담체의 탄성 물성치 평가

  • Cho, Seok-Swoo (Department of Vehicle Engineering, Kangwon National University)
  • 조석수 (강원대학교 자동차공학과)
  • Received : 2013.11.04
  • Accepted : 2013.12.05
  • Published : 2013.12.31

Abstract

Automotive three-way catalyst substrate has a cordierite ceramic honeycomb structure. The substrate in the high engine speed range doesn't satisfy the design fatigue life due to the low mechanical properties of cordierite ceramic. SiC ceramic has higher mechanical properties than cordierite ceramic. If the automotive three-way catalyst substrate is made from the SiC ceramic honeycomb structure, the substrate can be prevented from premature failure. In this study, the mechanical properties of SiC ceramic honeycomb substrate were estimated by FEA. The FEA results indicated that the MOR and elastic modulus for the SiC ceramic honeycomb substrate was much higher than those for the cordierite ceramic honeycomb substrate.

Keywords

Cordierite Ceramic;Honeycomb Structure;MOR(Modulus of rupture);SiC Ceramic;Three-way Catalyst Substrate

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