- 플라즈마 소결법을 이용한 고체산화물 연료전지 음극 제조 시 소결온도에 따른 미세구조 및 물성평가
- ㆍ 저자명
- 송병주,김가람,김혜성,Song. Byung Ju,Kim. Ka Ram,Kim. Hye Sung
- ㆍ 간행물명
- 한국분말야금학회지
- ㆍ 권/호정보
- 2013년|20권 6호|pp.425-431 (7 pages)
- ㆍ 발행정보
- 한국분말야금학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
Microstructural and mechanical properties of Ni-YSZ fabricated using SPS processing have been investigated at various sintering temperatures. Our study shows samples to be applied as a SOFC anode have the proper porosity of 40% and high hardness when processed at $1100^{circ}C$. These results are comparable to the values obtained at $100-200^{circ}C$ higher sintering temperature reported by others. This result is important because when the fabrication processes are performed above $1100^{circ}C$, the mechanical property starts to decrease drastically. This is caused by the fast grain coarsening at the higher temperature, which initiates a mismatch between thermal expansion coefficients of Ni and YSZ and induces cracks as well.