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

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

研究成果: Conference contribution

抄録

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.

本文言語English
ホスト出版物のタイトルASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology, FUELCELL 2010
ページ381-385
ページ数5
DOI
出版ステータスPublished - 2010 12 1
イベントASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology, FUELCELL 2010 - Brooklyn, NY, United States
継続期間: 2010 6 142010 6 16

出版物シリーズ

名前ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology, FUELCELL 2010
2

Other

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

ASJC Scopus subject areas

  • エネルギー工学および電力技術
  • 燃料技術

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