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HomeKey Engineering MaterialsKey Engineering Materials Vol. 320Electrical Properties of Grain-Oriented...

Electrical Properties of Grain-Oriented SrBi₂Nb_2-xV_xO₉ Ceramics

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Abstract:

Vanadium-substituted strontium bismuth niobate, SrBi2Nb2-xVxO9 (SBNVx), ceramics were synthesized by a low-temperature ceramic fabrication process; their electric properties were characterized, and grain orientation effects on their electric properties were also investigated using a hot-forging (HF) method. Resonance characteristics of the (33) and (15) modes of grain-oriented SBNV0.1 (HF) showed relatively high electromechanical coupling factors of k33=0.272 and k15=0.151 as well as piezoelectric constants of d33=31.7 pC/N and d15=24.8 pC/N. The temperature dependences of the resonance frequency (TC-f) of the (33) and (15) modes of the SBNV0.1(HF) ceramics were -16.5 ppm/°C and –25.5 ppm/°C, respectively.

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Electroceramics in Japan IX

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Periodical:

Key Engineering Materials (Volume 320)

Pages:

31-34

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.320.31

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Online since:

September 2006

Authors:

Shinya Inai, Yuji Hiruma, Rintaro Aoyagi, Hajime Nagata, Tadashi Takenaka

Keywords:

Bismuth Layer Structured Ferroelectrics, Grain Orientation, Low Temperature Sintering, Piezoelectric Properties, Strontium Bismuth Niobate, Temperature Coefficient of Resonance Frequency

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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[7] F. K. Lotgering: J. Inorg. Nucl. Chem. 9 (1959), 113. e-mail: tadashi@ee. noda. tus. ac. jp Table 1 Pizoelectric properties of each mode for SBN and SBNV0. 1 ceramics.

[10] 0.

[24] 8.

[15] 2.

[31] 7.

[17] 4.

[14] 9 d (pC/N) -84. 2.

[3] 3 6450.

[5] 2 24(HF) -25. 5.

[26] 0 4420.

[15] 1 15(HF) -48. 6.

[11] 7 4600.

[9] 52 15(OF) -16. 5.

[52] 1 (2010).

[27] 2 33(HF) -44. 7.

[31] 8 5500.

[16] 9 33(OF) SBNV0. 1 -34. 6.

[6] 7 (1900).

[14] 3 33(OF) SBN TC-fr (ppm/�) Qe Qm k (%) mode composition.

[10] 0.

[24] 8.

[15] 2.

[31] 7.

[17] 4.

[14] 9 d (pC/N) -84. 2.

[3] 3 6450.

[5] 2 24(HF) -25. 5.

[26] 0 4420.

[15] 1 15(HF) -48. 6.

[11] 7 4600.

[9] 52 15(OF) -16. 5.

[52] 1 (2010).

[27] 2 33(HF) -44. 7.

[31] 8 5500.

[16] 9 33(OF) SBNV0. 1 -34. 6.

[6] 7 (1900).

[14] 3 33(OF) SBN TC-fr (ppm/�) Qe Qm k (%) mode composition -1 -0. 8 -0. 6 -0. 4 -0. 2 0.

2.

4.

6-50 0 50 100 150 15 mode (OF) 15 mode (HF) 24 mode (HF) temperature (ºC) (fr-fr25ºC)/fr25ºC (%) -1 -0. 8 -0. 6 -0. 4 -0. 2 0.

2.

4.

6-50 0 50 100 150 15 mode (OF) 15 mode (HF) 24 mode (HF) temperature (ºC) (fr-fr25ºC)/fr25ºC (%) Fig. 7 Temperature dependence of resonant frequency, TC-f.