TY - JOUR
T1 - Modeling of the effective elastic and thermal properties of glass-ceramic solid oxide fuel cell seal materials
AU - Milhans, J.
AU - Ahzi, S.
AU - Garmestani, H.
AU - Khaleel, M. A.
AU - Sun, X.
AU - Koeppel, B. J.
PY - 2009/5
Y1 - 2009/5
N2 - In this study, the effective elastic properties and coefficients of thermal expansion (CTE) of a glass-ceramic were predicted using homogenization techniques. Using G18, a glass-ceramic solid oxide fuel cell (SOFC) sealant as an initial reference material, the effectiveness of different homogenization models was investigated for a two-phase glass-ceramic. The elastic properties and CTEs of the G18 amorphous phase are currently unknown. Thus, estimated values were used as an input to the models. The predictive model offers accurate macroscopic values on both the elastic modulus and the CTE of glass-ceramic materials, providing the estimated amorphous values are reasonable. This model can be used in designing glass-ceramic SOFC seal materials for its specific operation conditions.
AB - In this study, the effective elastic properties and coefficients of thermal expansion (CTE) of a glass-ceramic were predicted using homogenization techniques. Using G18, a glass-ceramic solid oxide fuel cell (SOFC) sealant as an initial reference material, the effectiveness of different homogenization models was investigated for a two-phase glass-ceramic. The elastic properties and CTEs of the G18 amorphous phase are currently unknown. Thus, estimated values were used as an input to the models. The predictive model offers accurate macroscopic values on both the elastic modulus and the CTE of glass-ceramic materials, providing the estimated amorphous values are reasonable. This model can be used in designing glass-ceramic SOFC seal materials for its specific operation conditions.
KW - Effective properties
KW - Glass ceramic
KW - Homogenization
UR - http://www.scopus.com/inward/record.url?scp=60249085051&partnerID=8YFLogxK
U2 - 10.1016/j.matdes.2008.07.014
DO - 10.1016/j.matdes.2008.07.014
M3 - Article
AN - SCOPUS:60249085051
SN - 0264-1275
VL - 30
SP - 1667
EP - 1673
JO - Materials and Design
JF - Materials and Design
IS - 5
ER -