Evaluation of mechanical properties of SOFC components by nano-indentation tests

Hideaki Ito, Kazuhisa Sato, Atsushi Unemoto, Koji Amezawa, Tatsuya Kawada

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

Abstract

The Young's modulus and the hardness of single crystals and polycrystalline sintered compacts of yttria-stabilized zirconia (YSZ), (Y2O 3)x(ZrO2)1-x (x = 0.08, 0.10) was investigated by using the nano-indentation method. Together with results obtained by the secondary electron microscope observation and the electron backscattering diffraction analysis, the effect of the crystal orientation on the mechanical properties was discussed. It was empirically demonstrated that the Young's modulus of YSZ depends on the crystal orientation. The Young's modulus of YSZ showed the highest value on the (001) surface while the lowest value on the (111) surface. However, the observed anisotropy of the Young's modulus was rather small compared with predicted one from the single crystal elastic constants in literature. Compared with the Young's modulus, the anisotropy of the hardness of YSZ was less significant.

Original languageEnglish
Title of host publicationASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology, FUELCELL 2010
Pages381-385
Number of pages5
DOIs
Publication statusPublished - 2010 Dec 1
EventASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology, FUELCELL 2010 - Brooklyn, NY, United States
Duration: 2010 Jun 142010 Jun 16

Publication series

NameASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology, FUELCELL 2010
Volume2

Other

OtherASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology, FUELCELL 2010
CountryUnited States
CityBrooklyn, NY
Period10/6/1410/6/16

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology

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  • Cite this

    Ito, H., Sato, K., Unemoto, A., Amezawa, K., & Kawada, T. (2010). Evaluation of mechanical properties of SOFC components by nano-indentation tests. In ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology, FUELCELL 2010 (pp. 381-385). (ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology, FUELCELL 2010; Vol. 2). https://doi.org/10.1115/FuelCell2010-33158