Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Defect Structure and Electrical Properties of Nonstoichiometric Rutile

비양론성 Rutile에서 결함구조와 전기적 물성

  • Kim, Myeong-Ho (Dept.of Ceramic Science and Engineering, Changwon National Unversity) ;
  • Baek, Un-Gyu (Dept.of Ceramic Science and Engineering, Changwon National Unversity)
  • Published : 1996.12.01
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Abstract

산소분압과 온도변화에 따라 비양론성 rutile(TiO2-x)의 결함모델을 전기전도 측정법에 의해 연구하였다. 산소분압과 전기전도도의 상관관계에 의하면, rutile에서 주결함은 2가로 하전된 산소빈자리와 4가로 하전된 침입형 티타늄이온이다. 117$0^{\circ}C$이상의 온도에서는 침입형 Tii…이온이 지배적인 결함이었으나, 117$0^{\circ}C$이하의 낮은 산소분압대에서는 2가로 하전된 산소빈자리가 주된 결함이었다. rutile의 전기전도 실험에서 제안된 결함모델은 본 연구팀이 O18추적자 확산실험에 의해 제안하였던 결과치와 일치하였다.

Keywords

References

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