دورية أكاديمية
Opportunity of metallic interconnects for ITSOFC: Reactivity and electrical property
| العنوان: | Opportunity of metallic interconnects for ITSOFC: Reactivity and electrical property |
|---|---|
| المؤلفون: | Cabouro, G., Caboche, G., Chevalier, Sébastien, Piccardo, R. |
| المساهمون: | Laboratoire de Recherche sur la Réactivité des Solides (LRRS), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), Dipartemento Chim & Chim Ind, University of Genoa (UNIGE) |
| المصدر: | ISSN: 0378-7753. |
| بيانات النشر: | HAL CCSD Elsevier |
| سنة النشر: | 2006 |
| المجموعة: | Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
| مصطلحات موضوعية: | chromia-forming alloy, electrical resistivity, oxidation, SOFC interconnect, MOCVD, screen-printing, [CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry |
| الوصف: | International audience ; Iron-base alloys (Fe-Cr) are proposed hereafter as materials for interconnect of planar-type intermediate temperature solid oxide fuel cell (ITSOFC); they are an alternative solution instead of the use of ceramic interconnects. These steels form an oxide layer (chrornia) which protects the interconnect from the exterior environment, but is an electrical insulator. One solution envisaged in this work is the deposition of a reactive element oxide coating, that slows down the formation of the oxide layer and that increases its electric conductivity. The oxide layer, formed at high temperature on the uncoated alloys, is mainly composed of chromia; it grows in accordance with the parabolic rate law (k(p) = 1.4 x 10(-12) g(2) cm(-4) s(-1)). On the reactive element oxide-coated alloy, the parabolic rate constant, k(p), decreases to 1.3 x 10(-13) g(2) cm(-4) s(-1). At 800 degrees C, the area-specific resistance of Fe-30Cr alloys is about 0.03 Omega cm(2) after 24 h in laboratory air under atmospheric pressure. The Y2O3 coating reduces the electrical resistance 10-fold. This indicates that the application of Y2O3 coatings on Fe-30Cr alloy allows to use it as an interconnect for SOFC. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | hal-00438120; https://hal.archives-ouvertes.fr/hal-00438120Test |
| DOI: | 10.1016/j.jpowsour.2005.08.039 |
| الإتاحة: | https://doi.org/10.1016/j.jpowsour.2005.08.039Test https://hal.archives-ouvertes.fr/hal-00438120Test |
| رقم الانضمام: | edsbas.E3B474E0 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1016/j.jpowsour.2005.08.039 |
|---|