Glass shape change during firing for improving the seal of planar SOFCs

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Secure sealing is vital for planar type SOFCs to avoid the performance degradation and achieve long-term stable operation. Here we focus on the sheet type glass sealing which is produced by tape-casting method. High wettability of the glass is essential to avoid the stress concentration because low wettability increases the contact angle of the glass and makes the notch at the edge of glass sealing interface. We have evaluated the effect of temperature rising rate on the wettability of the sealing glass and the edge shape of it using the visualization test system. High temperature rising rate led to small contact angle of the sealing glass in some cases and can mitigate the stress concentration.

Original languageEnglish
Title of host publicationECS Transactions
EditorsT. Kawada, S. C. Singhal
PublisherElectrochemical Society Inc.
Pages1731-1737
Number of pages7
Edition1
ISBN (Electronic)9781607685395
DOIs
Publication statusPublished - May 30 2017
Event15th International Symposium on Solid Oxide Fuel Cells, SOFC 2017 - Hollywood, United States
Duration: Jul 23 2017Jul 28 2017

Publication series

NameECS Transactions
Number1
Volume78
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

Other15th International Symposium on Solid Oxide Fuel Cells, SOFC 2017
CountryUnited States
CityHollywood
Period7/23/177/28/17

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Wakita, Y., Tachikawa, Y., Nakajima, H., & Ito, K. (2017). Glass shape change during firing for improving the seal of planar SOFCs. In T. Kawada, & S. C. Singhal (Eds.), ECS Transactions (1 ed., pp. 1731-1737). (ECS Transactions; Vol. 78, No. 1). Electrochemical Society Inc.. https://doi.org/10.1149/07801.1731ecst