Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

The Influence of MnO doped on the Radiation Properties of Far-Infrared in Semiconduction PTC Thermistor.

반도성 PTC 서미스터의 원적외선 방사특성에 미치는 MnO의 영향

  • Song, M.J. (Dept. of Electrical Eng. Won Kwang University) ;
  • Cho, H.S. (Dept. of Electrical Eng. Won Kwang University) ;
  • Jang, S.H. (Dept. of Electrical Eng. Won Kwang University) ;
  • Park, C.B. (Dept. of Electrical Eng. Won Kwang University) ;
  • Kim, C.H. (Dept. of Electrical Eng. Kwang Woon University) ;
  • Lee, J.U. (Dept. of Electrical Eng. Kwang Woon University)
  • Published : 1991.07.18
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Abstract

In this paper, the radiation properties of a far-Infrared using a PTC thermistor, the $BaTiO_3$+1.63mol% $Al_2O_3$+3.75mol% $SiO_2$+1.25mol% $TiO_2$(1/3 $Al_2O_3+xSiO_2$+(1-x) $TiO_2$; total x: 6.67mol%) ceramics, in order to progress the grade resistivity characteristics, by adding an ethanol solution of $Mn(NO_3){\cdot}6H_2O$ was investigated. The ceramics was fabricated by wet-mill method. The sintering temperature read 1300-1350$[^{\circ}C]$ and the holding time was 3 hours. The quantity of $Sb_2O_3$ and $Al_2O_3$ for an activation of the far-infrared radiation in ceramics was doped. In sintering, R-T property was measured by varying the grade temperature. The anatase-lighting apparatus and microstructures by using XRD and SEM were observed. $Sb_2O_3$. oxides additive. affected the semiconducting and emissivity and MnO was devoted an increase of resistivity. The specimen which only $Sb_2O_3$ is added to was high appeared far-infrared emissivity and Mno was not affacted the far-infrared radiation. The ceramics shows that it is effective in the structure of the human bodies as organic bodies and can be applied as electron device.

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