TY - GEN
T1 - Development of in-situ mechanical testing method for SOFC components
AU - Watanabe, Satoshi
AU - Sato, Kazuhisa
AU - Takeyama, Yohei
AU - Iguchi, Fumitada
AU - Yashiro, Keiji
AU - Hashida, Toshiyuki
AU - Mizusaki, Junichiro
AU - Kawada, Tatsuya
PY - 2010/12/1
Y1 - 2010/12/1
N2 - For the commercialization of solid oxide fuel cell (SOFC), in addition to the electrical reliability, it is also important to ensure the mechanical reliability of SOFC. Thus, the establishment of a suitable mechanical testing method under various temperatures and oxygen partial pressure conditions is a prerequisite for the development of reliable SOFCs. This paper presents the experimental results of the investigation of elastic modulus and fracture strength on the SOFC components under reducing conditions. An in-situ mechanical testing method was developed in order to investigate the elastic modulus and fracture strength of solid oxide fuel cells components under high oxidizing/reducing environments. The elastic modulus was shown to change under reducing condition, and the behavior was most likely due to non-stoichiometry. It was demonstrated that the in-situ mechanical testing method enabled us to estimate the internal stress in the SOFC cell and stack.
AB - For the commercialization of solid oxide fuel cell (SOFC), in addition to the electrical reliability, it is also important to ensure the mechanical reliability of SOFC. Thus, the establishment of a suitable mechanical testing method under various temperatures and oxygen partial pressure conditions is a prerequisite for the development of reliable SOFCs. This paper presents the experimental results of the investigation of elastic modulus and fracture strength on the SOFC components under reducing conditions. An in-situ mechanical testing method was developed in order to investigate the elastic modulus and fracture strength of solid oxide fuel cells components under high oxidizing/reducing environments. The elastic modulus was shown to change under reducing condition, and the behavior was most likely due to non-stoichiometry. It was demonstrated that the in-situ mechanical testing method enabled us to estimate the internal stress in the SOFC cell and stack.
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U2 - 10.1115/FuelCell2010-33294
DO - 10.1115/FuelCell2010-33294
M3 - Conference contribution
AN - SCOPUS:84860313112
SN - 9780791844052
T3 - ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology, FUELCELL 2010
SP - 417
EP - 420
BT - ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology, FUELCELL 2010
T2 - ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology, FUELCELL 2010
Y2 - 14 June 2010 through 16 June 2010
ER -