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J. Korean Ceram. Soc. > Volume 51(3); 2014 > Article
Journal of the Korean Ceramic Society 2014;51(3): 208.
doi: https://doi.org/10.4191/kcers.2014.51.3.208
La0.8Sr0.2Ga0.8Mg0.2-xZnxO2.8(X=0.0~0.05) 전해질의 저온 소결 특성
임경태, 이충환1, 유지행2, 백동현3, 백경호
충남대학교 신소재공학과
1(주)케이세라셀
2한국에너지기술연구원 창의소재연구실
3한국에너지기술연구원 연료전지연구실
Properties of Low Temperature Sintering of La0.8Sr0.2Ga0.8Mg0.2-xZnxO2.8 (X = 0.0 - 0.05) Electrolyte
Kyoung Tae Lim, Chung Hwan Lee1, Ji Haeng Yu2, Dong-Hyun Peck3, Kyeong Ho Baik
Department of Nano Material Engineering, Chungnam National University
1Kceracell Co., Ltd.
2Advanced Materials and Devices Laboratory, Korea Institute of Energy Research
3Fuel Cell Laboratory, Korea Institute of Energy Research
ABSTRACT
$La_{0.8}Sr_{0.2}Ga_{0.8}Mg_{0.2-x}Zn_xO_{2.8}$(LSGMZ, X=0-0.05) was prepared using a solid state reaction method. Two secondary phases ($LaSrGaO_4$ and $LaSrGa_3O_7$) of powders were identified by X-ray diffraction analysis. The relative amount of these secondary phases depended on the calcination conditions (temperature and time) and Zn content. The sintering density of LSGMZ was enhanced by increasing the Zn content and calcination temperature at the low sintering temperatures ($1250-1300^{circ}C$). The relationship between the sintering density of LSGMZ and the synthesis conditions was discussed considering the phase analysis results.
Key words: Solid oxide fuel cell, IT-SOFCs, Perovskite-type electrolyte, Sr and Mg doped lanthanum gallate, Low temperature sintering
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