Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1998.07d
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- Pages.1303-1305
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- 1998
Structure and Oxidation Behavior of the $LaCrO_3$ -dispersed Cr alloys
$LaCrO_3$ 가 분산된 Cr 합금의 구조 및 산화거동
- Jeon, Kwang-Sun (Aju Univ., Dept. of Electricity & Electronic Engineering) ;
- Song, Rak-Hyun (Koera Institude of Energy Research) ;
- Shin, Dong-Ryul (Koera Institude of Energy Research) ;
- Jo, J. (Aju Univ., Dept. of Electricity & Electronic Engineering)
- Published : 1998.07.20
Abstract
In order to reduce or avoid oxidation problem at operation the interconnects in SOFCs have so far mostly been made of ceramic material. It has high chemical stability both under cathode and anode condition, relatively thermal expansion coefficient that matchs that of electrolyte material YSZ. But this material shown rather weak in the low oxygen atmosphere and thermal shock, and it has lower mechanical strength than alloys. To avoid these problems one may consider to use metals or alloys as materials for interconnects. Metallic interconnects are advantageous because of their high thermal and electronic conductivities. But it has some problems, Those are high thermal expansion and oxidation at high temperature in air. To solve these problems in the interconnection material in this study,
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