대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

$BaTiO_3$ 세라믹스의 PTC특성에 미치는 $La_2O_3$의 영향

The Effects of $La_2O_3$ on PTC characteristics of $BaTiO_3$ Ceramics

  • Kim, H.K. (Dept. of Electrical Eng. Inha Univ.) ;
  • Yuk, J.H. (Dept. of Electrical Eng. Inha Univ.) ;
  • Park, K.S. (Dept. of Electrical Eng. Chungnam Junior Col.) ;
  • Jung, S.Y. (Dept. of Electrical Eng. Pusan Junior Col.) ;
  • Kim, J.S. (ADD) ;
  • Lee, D.C. (Dept. of Electrical Eng. Inha Univ.)
  • 발행 : 1993.07.18
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초록

$({Ba}_{1-x}La_x)TiO_3,\;x=0{\sim}0.005$ specimens were fabricated by solid stste reaction method, and their PTC characteristics were examined. The gain growth is inhibited by La substitution, and it is confirmed that the specimens are crystallized at $900^{\circ}C$ from DTA analysis. The 0.003mol La substituded specimens show lowest resistivity and best PTC effects. Furthermore, the electrode sintered-specimens exhibite better PTC effects than no sintered-specimens.

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