| Gd-Doped CeO2 분말의 마이크로파 소결 |
| 김영균, 김석범 |
| 경기대학교 재료공학과 |
| Microwave Sintering of Gd-Doped CeO2 Powder |
| Young-Goun Kim, Seuk-Buom Kim |
| Department of Materials Science and Engineering, Gyeonggi University |
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| ABSTRACT |
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10 mol% $Gd_{2}O_{3}-CeO_{2}$ powder was sintered by microwave in a 2.45 GHz multimode cavity to develop a dense electrolyte layer for intermediate temperature solid oxide fuel cells (IT-SOFCs). Samples were sintered from $1100^{circ}C$ upto $1500^{circ}C$ by $50^{circ}C$ difference and kept for 10 min and 30 min at the maximum temperature respectively. Theoretical density of the sample sintered at $1200^{circ}C$ for 10 min was 95.4% and increased gradually upto 99% in the sample sintered at $1500^{circ}C$ for 30 min. All of sintered samples showed very fine microstructures and the maximum average grain size of the sintered sample at $1500^{circ}C$ for 30 min was $(0.87{pm}0.42){mu}m$. Ionic conductvity of the samples were measured by DC 4 probe method. |
| Key words:
SOFC, Gd-doped, $CeO_{2}$, Microwave process, Ceramic electrolyte, Sintering SOFC, Gd-doped |
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