Non-stoichiometrically activated sintering of Ca_<0.8>Sr_<0.2>TiO_3

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概要

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• The two dissimilar dopants, Li2Si2O5 with small ionic sizes and inert Ag with a large atomic size were selected to understand the effects of activators on non-stoichiometrically activated sintering of Ca0.8Sr0.2TiO3 by doping with Ag, or co-doping with Ag and Li2Si2O5. The solubility limit of Ag+ in Ca0.8Sr0.2TiO3 was ca. 7.0 mass%. The optimum sintering temperature was as low as 1353 K by co-doping of 5.0 mass% Ag and 0.5 mass% Li2Si2O5. This firing temperature was lower than that of 1623 K using 5.0 mass% Ag, and 1473 K for 0.5 mass% Li2Si2O5, respectively. The fracture strength of 363 MPa attained by co-doping was much high than the values of 291 and 292 MPa using 5.0 mass% Ag and 0.5 mass% Li2Si2O5, respectively.

• 公益社団法人 日本セラミックス協会の論文
• 2009-04-01

著者

• 佐藤 次雄

  Institute Of Multidisciplinary Research For Advanced Materials Tohoku University

• Takahashi Masatoshi

  Institute Of Multidisciplinary Research For Advanced Materials Tohoku University

• YIN Shu

  Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

• SATO Tsugio

  Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

• Yin Shu

  Inst. Of Multidisciplinary Res. For Advanced Materials Tohoku Univ.

• Yin Shu

  Institute For Chemical Reaction Science Tohoku University

• Sato Tsugio

  Inst. Of Multidisciplinary Res. For Advanced Materials Tohoku Univ.

• LI Ruixing

  Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials S

• TANG Qing

  Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

• Sato Tsugio

  Institute For Chemical Reaction Science Tohoku University

• Tang Q

  Institute Of Multidisciplinary Research For Advanced Materials Tohoku University

• LI Ruixing

  Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University

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