M<sub>0.5</sub>Bi<sub>2.5</sub>Ta<sub>2</sub>O<sub>9</sub> (M=Na, K) セラミックスの合成及び強誘電特性
書誌事項
- タイトル別名
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- Synthesis and Ferroelectric Properties of M0.5Bi2.5Ta2O9 (M=Na,K) Ceramics.
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Bismuth layer-structured ferroelectrics (BLSFs), M0.5Bi2.5Ta2O9 (M=Na, K) were synthesized using a solidstate reaction. Na0.5Bi2.5Ta2O9 (NBT) single phase polycrystals were obtained by heating raw material powders at 1100°C. On the other hand, K0.5Bi2.5Ta2O9 (KBT) powder contained KTaO3 as a main impurity phase. Dense ceramics of NBT were prepared by considering Bi2O3 vaporization and using a binder. Result of dielectric and ferroelectric characterizations of the NBT ceramic were as follows: Curie temperature, TC=780°C, dielectric constant, εs=158, dielectric loss factor, tan δ=0.011 as measured at room temperature and 1MHz and the remanent polarization, Pr=15-18μC·cm-2. The Pr value is the largest among reported BLSFs that are composed of two perovskite layers.
収録刊行物
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- Journal of the Ceramic Society of Japan (日本セラミックス協会学術論文誌)
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Journal of the Ceramic Society of Japan (日本セラミックス協会学術論文誌) 110 (1280), 255-258, 2002
公益社団法人 日本セラミックス協会
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詳細情報 詳細情報について
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- CRID
- 1390001205248007424
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- NII論文ID
- 110002291590
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- NII書誌ID
- AN10040326
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- ISSN
- 18821022
- 09145400
- http://id.crossref.org/issn/09145400
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- NDL書誌ID
- 6126895
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可
