Evaluation of elastic and strength properties of Ni-YSZ cermets for solid oxide fuel cells under redox cycling

K. Sato, T. Miyasaka, S. Watanabe, T. Hashida

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The effects of pore volume in Ni-YSZ cermets on their mechanical properties under redox cycling were examined using a small punch (SP) testing method. The volume fractions of pores Vp in as-sintered NiO-YSZ specimens were in the range of 0-30%, and with the Ni/YSZ mixture ratio of 50:50%. All the measurements were conducted at 800 C. For Vp>20%, the measured Young's modulus and strength of re-oxidized NiO-YSZ cermets were almost close to those of the as-sintered cermets. The experimental result indicates that the appropriate selection of Vp is necessary for ensuring the mechanical properties during redox cycling.

Original languageEnglish
Pages (from-to)753-762
Number of pages10
JournalECS Transactions
Volume57
Issue number1
DOIs
Publication statusPublished - 2013

ASJC Scopus subject areas

  • Engineering(all)

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