- 고체산화물 연료전지를 위한 플라즈마 용사코팅 Ni/YSZ 음극 복합체의 특성평가
- ㆍ 저자명
- 박수동,윤상훈,강기철,이창희,Park. Soo-Dong,Yoon. Sang-Hoon,Kang. Ki-Cheol,Lee. Chang-Hee
- ㆍ 간행물명
- 大韓溶接·接合學會誌
- ㆍ 권/호정보
- 2008년|26권 4호|pp.50-54 (5 pages)
- ㆍ 발행정보
- 대한용접접합학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
In this research, anode for SOFC has been manufactured from two different kinds of feedstock materials through thermal spraying process and the properties of the coatings were characterized and compared. One kind of feedstock was manufactured from spray drying method which includes nano-components of NiO, YSZ (300 nm) and graphite. And the other is manufactured by blending the micron size NiO coated graphite, YSZ and graphite powders as feedstock materials. Microstructure, mechanical properties and electrical conductivity of the coatings as-sprayed, after oxidation and after hydrogen reduction containing nano composite which is prepared from spray-dried powders were evaluated and compared with the same properties of the coatings prepared from blended powder feedstock. The coatings prepared from the spray dried powders has better properties as they provide larger triple phase boundaries for hydrogen oxidation reaction and is expected to have lower polarization loss for SOFC anode applications than that of the coatings prepared from blended feedstock. A maximum electrical conductivity of 651 S/cm at $800^{circ}C$ was achieved for the coatings from spray dried powders which much more than that of the average value.