铋层结构(Na,Bi)Bi/sub 2/Ta/sub 2/O/sub 9/陶瓷的压电性能及结构表征

Proceedings of the 13th IEEE International Symposium on Applications of Ferroelectrics, 2002. ISAF 2002. Pub Date : 2002-05-28 DOI:10.1109/ISAF.2002.1195931

R. Aoyagi, M. Matsushita, K. Komagata, H. Takeda, S. Okamura, T. Shiosaki

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引用次数: 0

摘要

研究了铋层状结构铁电体Na/sub 0.5-x/Bi/sub 0.5+x/3/Bi/sub 2/Ta/sub 2/O/sub 9/ (NBT(x))致密陶瓷的压电性能，并用Rietveld法分析了合成的NBT(x)粉末的晶体结构。采用常规合成方法制备了NBT(x)粉体和陶瓷。x射线衍射法证实x = 0和x = 0.1的NBT(x)粉末为BLSFs (m = 2)的单相。NBT(x = 0)和NBT(x = 0.1)致密陶瓷的机电耦合系数k/sub p/分别为10%和8.3%。NBT(x = 0)的k/sub p/是已报道的无取向blsf陶瓷中最大的之一。

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Piezoelectric properties and structural characterization of (Na,Bi)Bi/sub 2/Ta/sub 2/O/sub 9/ ceramics with bismuth layer-structure

The piezoelectric properties of bismuth layer-structured ferroelectrics Na/sub 0.5-x/Bi/sub 0.5+x/3/Bi/sub 2/Ta/sub 2/O/sub 9/ (NBT(x)) dense ceramics were investigated, and the crystal structure of synthesized NBT(x) powders was analyzed by the Rietveld method. NBT(x) powder and ceramics were prepared by conventional synthesis method. NBT(x) powder for x = 0 and x = 0.1 was confirmed to be single phase of BLSFs (m = 2) by x-ray diffraction method. The electromechanical coupling coefficients k/sub p/ of NBT(x = 0) and NBT(x = 0.1) dense ceramics were 10% and 8.3%, respectively. The k/sub p/ of NBT(x = 0) was one of the largest in reported non-oriented BLSFs ceramics.

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Proceedings of the 13th IEEE International Symposium on Applications of Ferroelectrics, 2002. ISAF 2002.

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