Influential parameters and performance of a glass-ceramic sealant for solid oxide fuel cells
Küçük Resim Yok
Tarih
2015
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
ELSEVIER SCI LTD
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Glass-ceramic composites are among the few materials suitable for solid oxide fuel cell (SOFC) sealing application due to their high operating temperatures (600-850 degrees C). Glass-ceramics can chemically bond to both the metallic interconnector and the ceramic electrolyte and provide a gas-tight connection. However, a careful manufacturing procedure, which includes several stages, is required to obtain a gas-tight seal. In this study, the joint strength of the glass-ceramic sealant between two metallic interconnectors is experimentally investigated for different surface properties of the metallic interconnector. According to the experimental results, the optimum sintering temperature and pressure are found to be 870 degrees C and 0.5 kg cm(-2), respectively. In addition, the best bonding strength among the support materials considered is obtained for NiO. Furthermore, the sealing thickness is optimized as 0.6 mm. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
Açıklama
Anahtar Kelimeler
Solid oxide fuel cells, Glass-ceramic sealant, Joint strength, Sintering temperature, Interconnector coating
Kaynak
CERAMICS INTERNATIONAL
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
41
Sayı
2
