한국세라믹학회지 (Journal of the Korean Ceramic Society)

  • 제32권1호
  • /
  • Pages.106-112
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  • 1995
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  • 1229-7801(pISSN)
  • /
  • 2234-0491(eISSN)
한국세라믹학회 (The Korean Ceramic Society)
권호 표지

ZnO의 전기전도도에 미치는 CuO 및 $Al_2O_3$의 첨가영향

Effect of CuO and $Al_2O_3$ Addition on the Electrical Conductivity of ZnO

  • 전석택 (포항공과대학교 재료금속공학과) ;
  • 최경만 (포항공과대학교 재료금속공학과)
  • 발행 : 1995.01.01
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초록

In order to examine the effect of CuO and Al2O3 addition on the electrical conductivity of ZnO, both Al2O3 (0, 1, 2, 5, 10at.%) and CuO (1, 5at.%) were added to ZnO. Al2O3 addition (~2at.% Al) increased the total electrical conductivity of ZnO which was already decreased by CuO doping effect Above solid solubility of Al (~2at.%), ZnAl2O4 formed and the total electrical conductivity decreased due to the decrease of sintered density. Impedance measurements were used to know the reason and degree of contribution of three resistive elements, ZnO grain, ZnO/CuO, and ZnO/ZnO grain boundaries, to the total electrical conductivity changed.

키워드

참고문헌

  1. Electroceramics A.J. Moulson;J.M. Herbert
  2. J. Am. Ceram. Soc. v.73 Application of Zinc Oxide Varistor T.P. Gupta
  3. Solid State Gas Sensors P.T. Moseley;B.C. Toefield
  4. J. Am. Ceram. Soc. v.75 Effect of Copper Additive on the Microstructure and Electrical Properties of Polycrystalline Zinc Oxide B.S. Chiou;M.C. Chung
  5. 한국요업학회지 v.29 ZnO와 CuO의 접촉형 세라믹스의 일산화탄소 가스 감응특성 전석택;최경만
  6. Sensors and Actuators B v.12 Fabrication of Thin-Film CuO/ZnO Heterojunction and Its Humidity-Sensing Properties Y. Ushio;M. Miyayama;H. Yanagida
  7. J. Am. Ceram. Soc. v.75 Mixed Oxide Capacitor of CuO-BaTiO₃ as a New Type CO₂ Gas Sensor T. Isihara;K. Komentani;Y. Mizuhar;Y. Takita
  8. Sensors and Actuators B v.9 CuO-SnO₂ Element for Highly Sensitive and Selective Detection of H₂S J. Tamaki;T. Maekawa;N. Miura;N. Yamazoe
  9. Sensors and Actuators v.19 The Mixed Oxide Al₂O₃-V₂$O_5$ as a Semiconductor Gas Sensor for NO and NO₂ T. Ishihara;K. Shiokawa;K. Eguchi;H. Arai
  10. J. Am. Ceram. Soc. v.68 Gas Sensing Characteristics of Porous ZnO and Pt/ZnO Ceramics S. Saito;M. Miyayama;K. Koumoto;H. Yanagida
  11. J. Am. Ceram. Soc. v.75 Factors Controlling the Sintering of Ceramic Particulate Composites: Ⅰ, Conventional Processing C.L. Fan;M.N. Rahaman
  12. J. Am. Ceram. Soc. v.75 Effect of Inclusion on Densification: Ⅰ, Microstructural Development in an Al₂O₃ Matrix Containing a High Volume Fraction of ZrO₂ Inclusions O. Surde;F. Lange
  13. 1993 PAC RIM Meeting Electrical Property of ZnO-CuO Composite S.T. Jun;G.M. Choi
  14. J. Appl. Physics v.27 Effective Dielectric Constant of Heterogeneous Media R.S. Smith