Mechanical properties of Ce 0.9Gd 0.1O 2-δat high temperatures under controlled atmospheres

Takuto Kushi, Kazuhisa Sato, Atsushi Unemoto, Koji Amezawa, Tatsuya Kawada

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

4 Citations (Scopus)

Abstract

Young's modulus of Ce 0.9Gd 0.1O 2-δ (GDC) has been investigated as a function of temperature from room temperature to 1273 K and of p(O 2) from 10 -24 to 10 -2 bar by using a resonance method. It was found that the Young's modulus of GDC under oxidizing conditions gradually decreased with increasing temperature and was almost independent of p(O 2) at a constant temperature. However, under reducing conditions, it apparently decreased as p(O 2) decreased even at a constant temperature in response to the increase in the oxygen nonstoichiometry δ. Such p(O 2) and temperature dependencies of the Young's modulus can be explained by a change in the interatomic distance due to chemical and/or the thermal expansion.

Original languageEnglish
Title of host publicationSolid Oxide Fuel Cells 12, SOFC XII
Pages1145-1149
Number of pages5
Edition2 PART 2
DOIs
Publication statusPublished - 2011 Dec 1
Event12th International Symposium on Solid Oxide Fuel Cells, SOFC-XII - 219th ECS Meeting - Montreal, QC, Canada
Duration: 2011 May 12011 May 6

Publication series

NameECS Transactions
Number2 PART 2
Volume35
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

Other12th International Symposium on Solid Oxide Fuel Cells, SOFC-XII - 219th ECS Meeting
CountryCanada
CityMontreal, QC
Period11/5/111/5/6

ASJC Scopus subject areas

  • Engineering(all)

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