대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

반도성 PTC 서미스터의 원적외선 방사특성에 미치는 MnO의 영향

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

  • 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)
  • 발행 : 1991.07.18
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초록

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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