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Ultrahigh temperature Bi3Ti0.96Sc 0.02Ta0.02NbO9-based piezoelectric ceramics

Journal Article


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 �� 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. �� 2008 American Institute of Physics.

Publication Date


  • 2008

Citation


  • Gai, Z. G., Wang, J. F., Sun, W. B., Wang, C. M., Zhao, M. L., Sun, S. Q., . . . Shrout, T. R. (2008). Ultrahigh temperature Bi3Ti0.96Sc 0.02Ta0.02NbO9-based piezoelectric ceramics. Journal of Applied Physics, 104(2). doi:10.1063/1.2949269

Scopus Eid


  • 2-s2.0-48849090554

Volume


  • 104

Issue


  • 2

Place Of Publication


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 �� 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. �� 2008 American Institute of Physics.

Publication Date


  • 2008

Citation


  • Gai, Z. G., Wang, J. F., Sun, W. B., Wang, C. M., Zhao, M. L., Sun, S. Q., . . . Shrout, T. R. (2008). Ultrahigh temperature Bi3Ti0.96Sc 0.02Ta0.02NbO9-based piezoelectric ceramics. Journal of Applied Physics, 104(2). doi:10.1063/1.2949269

Scopus Eid


  • 2-s2.0-48849090554

Volume


  • 104

Issue


  • 2

Place Of Publication