PZT系圧電体の焼結挙動に及ぼすNb2O5とMnOの添加効果

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タイトル別名
  • Influence of Nb2O5 and MnO Dope on the Sintering Behavior of PZT Ceramics.
  • PZTケイ アツデンタイ ノ ショウケツ キョドウ ニ オヨボス Nb2O5

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抄録

The mechanism of shrinkage during sintering was investigated on PZT ceramics. Nb2O5 and MnO was added to PZT calcined powder. The mechanism of shrinkage was determined from the shrinkage-time curves. The mechanism of shrinkage and grain growth changed depending on the Nb2O5/MnO ratio. The dominant mechanism was volume diffusion when the Nb2O5/MnO ratio was larger than 6. On the other hand, the volume diffusion was inhibited when the Nb2O5/MnO ratio was less than 4. The grain growth was inhibited in the former conditions, while it was promoted in the latter conditions.

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