Contraction of porous nickel during low temperature oxidation

Y. Morishita, F. Zhao, S. Watanabe, K. Yashiro, T. Kawada

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


Peculiar contraction and creep behavior were investigated with Ni-based anode material upon intermediated temperature oxidation. Volume change of a porous Ni was measured using a laser profilometer in oxidizing atmospheres at elevated temperatures. Contraction occurred in the temperature range around 500°C, and particularly at 473°C, a marked shrinkage of more than 8% was observed. Creep characteristics was tested with a small punch equipment with changing the atmosphere from reducing to oxidizing gases. At 400°C and 500°C, the creep rate dramatically increased when the oxidizing gas was introduced. These results suggest that a reducing atmosphere must be maintained to protect the anode from oxidation in shut-down operation for an anode-supported SOFC.

Original languageEnglish
Title of host publicationSolid Oxide Fuel Cells 16, SOFC 2019
EditorsK. Eguchi, S. C. Singhal
PublisherElectrochemical Society Inc.
Number of pages6
ISBN (Electronic)9781607688747, 9781607688747
Publication statusPublished - 2019
Event16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019 - Kyoto, Japan
Duration: 2019 Sep 82019 Sep 13

Publication series

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


Conference16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019

ASJC Scopus subject areas

  • Engineering(all)


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