Abstract
The effect of (Sc,Ta,Ce) doping on the properties of Bi3 TiNbO9 (BTNO)-based ceramics was investigated. The cerium modification greatly improves the piezoelectric activity of Bi3(Ti0.96Sc 0.02Ta0.02)NbO9-based ceramics and significantly decreases the dielectric dissipation. The d33 of Bi3Ti0.96Sc0.02Ta0.02NbO 9 +x wt % CeO2 (x=0.35) was found to be 18 pC/N, the highest value among the BTNO-based ceramics and almost three times as much as the reported d33 values of the pure BTNO ceramics (∼6 pC/N). The modification increased the resistivity ρ of the samples extremely, resolving the low resistivity problem for high temperature applications. The dielectric spectroscopy shows that the TC for all the ceramics is higher than 900°C. The mechanical quality factor Q and planar coupling factors k p and kt of Bi3Ti0.96Sc 0.02Ta0.02NbO9 +0.35 wt % CeO2 ceramic were found to be 2835, 9%, and 23%, respectively, and it has high T C and stable piezoelectric properties, demonstrating that the (Sc,Ta,Ce) modified BTNO-based material is a wonderful candidate for high temperature applications.
| Original language | English (US) |
|---|---|
| Article number | 024106 |
| Journal | Journal of Applied Physics |
| Volume | 104 |
| Issue number | 2 |
| DOIs | |
| State | Published - Aug 12 2008 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
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Ultrahigh temperature Bi3Ti0.96Sc 0.02Ta0.02NbO9-based piezoelectric ceramics. / Gai, Zhi Gang; Wang, Jin Feng; Sun, Wen Bin; Wang, Chun Ming; Zhao, Ming Lei; Sun, Shang Qian; Ming, Bao Quan; Qi, Peng; Zheng, Li Mei; Du, Juan; Zhang, Shujun; Shrout, Thomas R.
In: Journal of Applied Physics, Vol. 104, No. 2, 024106, 12.08.2008.Research output: Contribution to journal › Article
TY - JOUR
T1 - Ultrahigh temperature Bi3Ti0.96Sc 0.02Ta0.02NbO9-based piezoelectric ceramics
AU - Gai, Zhi Gang
AU - Wang, Jin Feng
AU - Sun, Wen Bin
AU - Wang, Chun Ming
AU - Zhao, Ming Lei
AU - Sun, Shang Qian
AU - Ming, Bao Quan
AU - Qi, Peng
AU - Zheng, Li Mei
AU - Du, Juan
AU - Zhang, Shujun
AU - Shrout, Thomas R.
PY - 2008/8/12
Y1 - 2008/8/12
N2 - The effect of (Sc,Ta,Ce) doping on the properties of Bi3 TiNbO9 (BTNO)-based ceramics was investigated. The cerium modification greatly improves the piezoelectric activity of Bi3(Ti0.96Sc 0.02Ta0.02)NbO9-based ceramics and significantly decreases the dielectric dissipation. The d33 of Bi3Ti0.96Sc0.02Ta0.02NbO 9 +x wt % CeO2 (x=0.35) was found to be 18 pC/N, the highest value among the BTNO-based ceramics and almost three times as much as the reported d33 values of the pure BTNO ceramics (∼6 pC/N). The modification increased the resistivity ρ of the samples extremely, resolving the low resistivity problem for high temperature applications. The dielectric spectroscopy shows that the TC for all the ceramics is higher than 900°C. The mechanical quality factor Q and planar coupling factors k p and kt of Bi3Ti0.96Sc 0.02Ta0.02NbO9 +0.35 wt % CeO2 ceramic were found to be 2835, 9%, and 23%, respectively, and it has high T C and stable piezoelectric properties, demonstrating that the (Sc,Ta,Ce) modified BTNO-based material is a wonderful candidate for high temperature applications.
AB - The effect of (Sc,Ta,Ce) doping on the properties of Bi3 TiNbO9 (BTNO)-based ceramics was investigated. The cerium modification greatly improves the piezoelectric activity of Bi3(Ti0.96Sc 0.02Ta0.02)NbO9-based ceramics and significantly decreases the dielectric dissipation. The d33 of Bi3Ti0.96Sc0.02Ta0.02NbO 9 +x wt % CeO2 (x=0.35) was found to be 18 pC/N, the highest value among the BTNO-based ceramics and almost three times as much as the reported d33 values of the pure BTNO ceramics (∼6 pC/N). The modification increased the resistivity ρ of the samples extremely, resolving the low resistivity problem for high temperature applications. The dielectric spectroscopy shows that the TC for all the ceramics is higher than 900°C. The mechanical quality factor Q and planar coupling factors k p and kt of Bi3Ti0.96Sc 0.02Ta0.02NbO9 +0.35 wt % CeO2 ceramic were found to be 2835, 9%, and 23%, respectively, and it has high T C and stable piezoelectric properties, demonstrating that the (Sc,Ta,Ce) modified BTNO-based material is a wonderful candidate for high temperature applications.
UR - http://www.scopus.com/inward/record.url?scp=48849090554&partnerID=8YFLogxK
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U2 - 10.1063/1.2949269
DO - 10.1063/1.2949269
M3 - Article
VL - 104
JO - Journal of Applied Physics
JF - Journal of Applied Physics
SN - 0021-8979
IS - 2
M1 - 024106
ER -