CAJ | 학술논문

以Al2O3和Al微粉为主要原料，制备了适用于固体氧化物燃料电池(SOFC)的Al2O3基压密封材料，包括流延带和浆料两类。通过添加2wt.%鯡鱼油作分散剂使浆料获得最佳流动性和分散效果。通过流延带和浆料的密封组合方式降低SOFC电堆的装配难度，提高其密封可靠性，并模拟实际工作环境进行了密封材料测试。实验结果表明，在1psi的通气压力下，这种组合式Al2O3基密封材料的漏气率为0.016 sccm/cm，满足密封性要求。在工作温度下其电阻率为7.5×104Ω·cm，满足绝缘性要求。通过扫描电镜和X射线衍射对测试后的密封材料进行微观形貌和相结构分析。
이Al2O3화Al미분위주요원료，제비료괄용우고체양화물연료전지(SOFC)적Al2O3기압밀봉재료，포괄류연대화장료량류。통과첨가2wt.%비어유작분산제사장료획득최가류동성화분산효과。통과류연대화장료적밀봉조합방식강저SOFC전퇴적장배난도，제고기밀봉가고성，병모의실제공작배경진행료밀봉재료측시。실험결과표명，재1psi적통기압력하，저충조합식Al2O3기밀봉재료적루기솔위0.016 sccm/cm，만족밀봉성요구。재공작온도하기전조솔위7.5×104Ω·cm，만족절연성요구。통과소묘전경화X사선연사대측시후적밀봉재료진행미관형모화상결구분석。
The Al2O3-based compressive seal is mainly composed of Al2O3 and Al ifne powders for SOFC, including seal tape and paste. The seal paste gets best lfuidity and dispersity with 2wt.%menhaden oil as dispersant. The lfexible seal that combines seal tape and paste can effectively reduce the dififculty level of assembling the SOFC stack and improve the reliability of seal. The real operation situation is simulated and the leakage test is done. The results show that the leak rate of this combination seal is 0.016sccm/cm under 1 psi input gas pressure and it can meet the requirement for seal. The resistivity is about 7.5×104Ω?cm at operation temperature and meets the requirement for insulation. Microstructure and phase structure of seal are tested through SEM and XRD.