Lee, Jae Chun Park, Sung Yu, Jun Suh Lee, Jong Ho Kim, Joo Sun Lee, Hae-Won 2024-01-21T02:35:04Z 2024-01-21T02:35:04Z 2021-09-02 2006-08 1013-9826 https://pubs.kist.re.kr/handle/201004/135285 Porous composites containing ceramic fiber have been developed for the fabrication of SOFC seals. They were fabricated using glass powder and alumino-silicate chopped fibers. Effect of mixing ratios of ceramic fiber and glass on the leak rates and strength of the composite seals was investigated, In addition, seat performance of commercial glasses was compared with that of SiO2-BaO-B2O3 glass synthesized in this work. The leak rate of the composite seals containing 55 vol% glass was seven times higher than the one containing 75 vol% glass. The flexural strength of the composite seals was reduced to one fourth of the initial value as the porosity increased from 1 to 29%. The incorporation of alumino-silicate chopped fibers into a seating glass degraded room temperature strength and increased leak rates due to increase in porosity with increasing fiber content. The viscosity of glass at the seal test temperature is presumed to affect the leak rate of the glass seal. English TRANS TECH PUBLICATIONS LTD OXIDE FUEL-CELLS Sealing behavior of visco-elastic composite seals for SOFC applications Article 10.4028/www.scientific.net/KEM.317-318.921 1 SCIENCE OF ENGINEERING CERAMICS III, v.317-318, pp.921 - 924 SCIENCE OF ENGINEERING CERAMICS III 317-318 921 924 scie scopus 000240097700216 2-s2.0-33746065235 Materials Science, Ceramics Materials Science, Composites Materials Science Article; Proceedings Paper OXIDE FUEL-CELLS solid oxide fuel cell seal glass ceramic fiber composite leak rate