Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Effects of Metal Oxides on the Characteristics for Infrared Radiator of Porous Cordierite

다공성 코디어라이트의 원적외선 방사특성에 미치는 금속산화물의 첨가효과

  • 이상욱 (영남대학교 대학원 전자공학과) ;
  • 박재성 (영남대학교 대학원 전자공학과) ;
  • 남효덕 (영남대학교 전자정보공학부)
  • Published : 2000.11.01
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Abstract

Addition effects of metal oxide on the characteristics of infrared radiator of porous cordierite have been investigated. The porosity was increased with adding the graphite for 2MgO $.$ 2A1$_2$O$_3$$.$5SiO$_2$. The microstructure and the spectral emissivity were investigated as a function of metal oxide additives. The prosity and the emissivity were decreased with increasing amounts of CuO additives. The prosity and the emissivity were increased with increasing amounts of CoO, MnO$_2$ additives. The infrared radiator of cordierite system which spectral emissivity was 0.927 and 0.928 at from 5$\mu\textrm{m}$ to 20$\mu\textrm{m}$ wavelength as a 9wt% of CoO and MnO$_2$ additives.

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