Synthesis and densification of nanometric Ce0.8Sm 0.2O1.9-δ

Vincenzo Esposito, Marco Fronzi, Enrico Traversa

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

Nanometric 20% molar Sm-doped ceria (SDC20) powders were synthesized by N, N, N', N' Tetramethylethylendiamine (TMEDA) co-precipitation method. SDC20 was sintered in several conditions to control the final microstructure. Fast firing and conventional sintering were performed and LiNO3 was used as an additive to promote liquid phase sintering of ceria at low temperatures (900-1200°C). Powders and dense pellets were analysed using X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), and transmission electron microscopy (TEM). Electrochemical impedance spectroscopy (EIS) measurements were performed on dense pellets in air to estimate the contribution of grain boundary and bulk to the electrical conductivity. Liquid phase sintering produced the densest samples with the highest conductivity.

本文言語English
ホスト出版物のタイトルSolid-State Ionics-2006
ページ169-174
ページ数6
出版ステータスPublished - 2007
外部発表はい
イベント2006 MRS Fall Meeting - Boston, MA, United States
継続期間: 2006 11 272006 11 30

出版物シリーズ

名前Materials Research Society Symposium Proceedings
972
ISSN(印刷版)0272-9172

Other

Other2006 MRS Fall Meeting
国/地域United States
CityBoston, MA
Period06/11/2706/11/30

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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