Effect of grain size on electrical properties of scandia-stabilized zirconia
スポンサーリンク
概要
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10 mol % Sc2O3-stabilized ZrO2 (10ScSZ) was sintered by several processes including spark plasma sintering, milliwave sintering and conventional sintering. The electrical conductivity of the sintered 10ScSZ samples was obtained by AC impedance spectra, and compared with grain size and the crystal phase. As average grain size decreased, the electrical conductivities decreased and increased at temperatures higher and lower than the phase transition point, respectively. These trends suggested that the fraction of a low conductivity rhombohedral phase increases with increasing grain size at a temperature lower than the phase transition point, and that the total thickness of the grain boundary affects the electrical conductivity at a temperature higher than the phase transition point.
著者
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SAKKA Yoshio
Nano Ceramics Center, National Institute for Materials Science
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Sakka Y
National Inst. Materials Sci. Tsukuba Jpn
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Sakka Yoshio
Nano Ceramics Center And Wpi Centr Initiative For Materials Nanoarchitronics (mana) National Institu
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Sakka Yoshio
Fine Particle Processing Group National Institute For Materials Science
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Shimonosono Taro
Nano Ceramics Center, National Institute for Materials Science (NIMS)
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Kimura Haruki
Nano Ceramics Center, National Institute for Materials Science (NIMS)
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Sakka Yoshio
Wpi Research Center Initiative On Materials Nanoarchitectonics National Institute For Materials Scie
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Sakka Yoshio
National Reserch Institute For Metals
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Sakka Yoshio
Nano Ceramics Center National Institute For Materials Science (nims)
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Sakka Yoshio
Materials Processing Division National Research Institute For Metals
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Sakka Yoshio
Fine Particle Processing Group Materials Engineering Laboratory National Institute For Materials Sci
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Sakka Yoshio
National Research Institute For Metals
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