Evaluation of mechanical damages in SOFCs during start/stop operation by using acoustic emission technique

K. Kumada, K. Sato, T. Hashida

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

1 Citation (Scopus)

Abstract

This paper presents an acoustic emission (AE) method for detecting the mechanical damage in anode-supported cells (ASCs). Start/stop cycle tests (between RT and 800°C) were carried out using single cells. After 2 cycle start/stop cycles, no damage was induced in the cells and their electrical performances were maintained without degradation. The experimental results indicated that the AE technique employed in this study allowed us to distinguish the damages in the cells from the cracking in the glass seals. In addition to this result, the mechanical damages during redox treatments were evaluated using the AE technique. The electrochemical evaluation performed concurrently with the redox treatments demonstrated the validity and significance of AE monitoring for detecting mechanical damages in SOFCs.

Original languageEnglish
Title of host publicationECS Transactions
EditorsT. Kawada, S. C. Singhal
PublisherElectrochemical Society Inc.
Pages2355-2363
Number of pages9
Edition1
ISBN (Electronic)9781607685395
DOIs
Publication statusPublished - 2017 May 30
Event15th International Symposium on Solid Oxide Fuel Cells, SOFC 2017 - Hollywood, United States
Duration: 2017 Jul 232017 Jul 28

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
Period17/7/2317/7/28

ASJC Scopus subject areas

  • Engineering(all)

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    Kumada, K., Sato, K., & Hashida, T. (2017). Evaluation of mechanical damages in SOFCs during start/stop operation by using acoustic emission technique. In T. Kawada, & S. C. Singhal (Eds.), ECS Transactions (1 ed., pp. 2355-2363). (ECS Transactions; Vol. 78, No. 1). Electrochemical Society Inc.. https://doi.org/10.1149/07801.2355ecst