한국세라믹학회지 (Journal of the Korean Ceramic Society)

  • 제26권1호
  • /
  • Pages.1-6
  • /
  • 1989
  • /
  • 1229-7801(pISSN)
  • /
  • 2234-0491(eISSN)
한국세라믹학회 (The Korean Ceramic Society)
권호 표지

Rutile 단결정의 전기전도도 시간의존성 연구

Studies on the Time Dependent Electrical Conductivity of Rutile Single Crystal

  • 김병국 (서울대학교 무기재료공학과) ;
  • 박순자 (서울대학교 무기재료공학과)
  • 발행 : 1989.01.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The phenomena that the electrical conductivity of rutile single crystal changes with time were investigated along the a and c crystallographic axes, at 85$0^{\circ}C$ and Po2 in the range of 1~10-18.5atm. The D.C. conductivity decreased with and saturated some value after ca. 100 hours. But the A.C. conductivity showed no time dependence in the whole Po2 range. These experimental results suggest that the time dependence of D.C. conductivity of rutile single crystal is due to space charge polarization effect; the electrode was Pt which is complete electronic conductor, while the sample was TiO2 which is mixed conductor.

키워드

참고문헌

  1. Toyota Eng. v.28 no.1 Development of TOYOTA O₂ Sensor K.Uchida;R.Okubo;M.Kawai
  2. J. Brit. Ceram. Soc. v.80 no.2 The Use of Electrical Ceramic Devices to Control Internal Combustion Engines P.McGeehin
  3. Sensor Device Handbook Oxygen Sensor S.Hirasaki
  4. Amer. Ceram. Soc. Bull. v.54 no.3 TiO₂as an Air to Fuel Ratio Sensor for Automobile Exhausts T.Y.Tien;H.L.Stadler;E.F.Gibbons;P.J.Zacmanidis
  5. Amer. Ceram.Soc. Bull. v.63 no.5 Fabrication and Performance Evaluation of a Titania Automotive Exhaust Gas Sensor A.L.Micheli
  6. Brit. J. Appl. Phys. v.16 no.1493 Variation with Time of the Electrical Conductivity of Rutile M.G.Harwood
  7. J. Appl. Phys. v.36 no.11 Conduction Phenomena in Rutile Single Crystals J.A van Raalte
  8. J. Phys. Chem. Solids v.28 no.861 Time Dependent Conductivity in Titanium Dioxide H.B.Whitehurst;J.J.Morrison;F.L.English;B.M.Warmkessel;C.J.Kevane
  9. 서울대학교 석사 학위 논문 Rutile소결체의 전기전도도 경시 변화 연구 조운조
  10. Electrical Conductivity in Ceramics and Glass Experimental Techniques R.N.Blumenthal;M.A.Seitz;N.M.Tallan(ed.)
  11. Rev. Sci. Instrum. v.52 no.4 Modified Mixed-Gas Flow Method for Controlling the Oxygen Partial Pressure in a Furnace, using a CO-CO₂System N.Kimizuka;E.Takayama
  12. 서울대학교 석사 학위 논문 $TiO_2-V_2O_5$Humidity Sensor의 미세구조와 전기적 특성에 관한 연구 한응학
  13. Nonstoichiometric Oxides Diffusion in Nonstoichiometric Oxides Hj.Matzke;O.T.Sorensen(ed.)
  14. Progr. Sol. State. Chem. v.10 no.1 Equations for transport in Solid Oxides and Sulfides of Transition Metals C.Wagner