Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Electrical Properties of YSZ Electrolyte Film Prepared by Electron Beam PVD

EB-PVD법에 의해 제조된 YSZ 전해질의 전기적 특성

  • Shin, Tae-Ho (Department of Ceramic Engineering, Yonsei University) ;
  • Yu, Ji-Haeng (Energy Materials Research Center, Korea Institute of Energy Research) ;
  • Lee, Shiwoo (Energy Materials Research Center, Korea Institute of Energy Research) ;
  • Han, In-Sub (Energy Materials Research Center, Korea Institute of Energy Research) ;
  • Woo, Sang-Kuk (Energy Materials Research Center, Korea Institute of Energy Research) ;
  • Hyun, Sang-Hoon (Department of Ceramic Engineering, Yonsei University)
  • 신태호 (연세대학교 세라믹공학과) ;
  • 유지행 (한국에너지기술연구원 에너지재료연구센터) ;
  • 이시우 (한국에너지기술연구원 에너지재료연구센터) ;
  • 한인섭 (한국에너지기술연구원 에너지재료연구센터) ;
  • 우상국 (한국에너지기술연구원 에너지재료연구센터) ;
  • 현상훈 (연세대학교 세라믹공학과)
  • Published : 2005.02.01
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Abstract

Electron Beam Physical Vapor Deposition (EB-PVD) is a typical technology for thermal barrier coating with Yttria Stabilized Zirconia (YSZ) on aero gas turbine engine. In this study EB-PVD method was used to fabricate dense YSZ film on NiO-YSZ as a electrolyte of Solid Oxide Fuel Cell (SOFC). Dense YSZ films of -10 $\mu$m thickness showed nano surface structure depending on deposition temperature. Electrical conductivities of YSZ film and electric power density of the single cell were evaluated after screen- printing $LaSrCoO_3$ as a cathode.

나노 코팅 기술로써 빠른 증착 속도와 미세구조 제어가 용이하여 항공기 엔진 부품 열차폐 코팅으로 널리 이용되는 Electron Beam Physical Vapor Deposition (EB-PVD)세라믹 코팅 기술을 연료전지 전해질 제조에 적용하였다. EB-PVD 법을 이용하여 NiO-YSZ 기판에 YSZ 전해질을 약 10$\mu$m의 두께로 짧은 시간에 코팅하였으며 증착온도에 따라 나노 구조의 표면을 가진 YSZ 막을 얻을 수 있었다. 연료전지 전해질로서의 특성을 평가하기 위하여, 같은 조건의 코팅으로 $Al_{2}O_3$기판에 전해질을 동일한 조건으로 코팅하여 전해질의 전기적 특성을 평가하였다. 또한 양극물질로서 $LaSrCoO_3$ 분말을 일반적인 스크린 프린팅 기법으로 코팅하여 EB-PVD의 코팅을 이용한 고체산화물 연료전지 제조 가능성에 대하여 논의하였다

Keywords

References

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