Effects of substitution in A- and B-site cations of Bi0.5Na0.5TiO3

A. Herabut; Ahmad Safari

Effects of substitution in A- and B-site cations of Bi_0.5Na_0.5TiO₃

A. Herabut, Ahmad Safari

School of Engineering, Materials Science & Engineering

Research output: Contribution to conference › Paper › peer-review

9 Scopus citations

Abstract

Bismuth sodium titanate (Bi_0.5Na_0.5TiO₃), BNT, with a small amount of additives including La, Sm, Nd, and Nb were prepared by a conventional mixed oxide method. Powders of all compositions were calcined at 800 °C for 2 hrs to form a pure perovskite phase. All specimens were sintered at 1150 °C for 2 hrs to achieve at least 95% theoretical densities. Samples of the BNT with La modification exhibited a dielectric permittivity of 515, electromechanical coupling factors k_t of 45% and k_p of 13%, and a piezoelectric charge coefficient d₃₃ of 100. The properties of the La-modified BNT suggest that these compositions are potential candidates for hydrophone applications.

Original language	English (US)
Pages	775-778
Number of pages	4
State	Published - Dec 1 1996
Event	Proceedings of the 1996 10th IEEE International Symposium on Applications of Ferroelectrics, ISAF. Part 1 (of 2) - East Brunswick, NJ, USA Duration: Aug 18 1996 → Aug 21 1996

Other

Other	Proceedings of the 1996 10th IEEE International Symposium on Applications of Ferroelectrics, ISAF. Part 1 (of 2)
City	East Brunswick, NJ, USA
Period	8/18/96 → 8/21/96

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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title = "Effects of substitution in A- and B-site cations of Bi0.5Na0.5TiO3",

abstract = "Bismuth sodium titanate (Bi0.5Na0.5TiO3), BNT, with a small amount of additives including La, Sm, Nd, and Nb were prepared by a conventional mixed oxide method. Powders of all compositions were calcined at 800 °C for 2 hrs to form a pure perovskite phase. All specimens were sintered at 1150 °C for 2 hrs to achieve at least 95% theoretical densities. Samples of the BNT with La modification exhibited a dielectric permittivity of 515, electromechanical coupling factors kt of 45% and kp of 13%, and a piezoelectric charge coefficient d33 of 100. The properties of the La-modified BNT suggest that these compositions are potential candidates for hydrophone applications.",

author = "A. Herabut and Ahmad Safari",

year = "1996",

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day = "1",

language = "English (US)",

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note = "Proceedings of the 1996 10th IEEE International Symposium on Applications of Ferroelectrics, ISAF. Part 1 (of 2) ; Conference date: 18-08-1996 Through 21-08-1996",

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T1 - Effects of substitution in A- and B-site cations of Bi0.5Na0.5TiO3

AU - Herabut, A.

AU - Safari, Ahmad

PY - 1996/12/1

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N2 - Bismuth sodium titanate (Bi0.5Na0.5TiO3), BNT, with a small amount of additives including La, Sm, Nd, and Nb were prepared by a conventional mixed oxide method. Powders of all compositions were calcined at 800 °C for 2 hrs to form a pure perovskite phase. All specimens were sintered at 1150 °C for 2 hrs to achieve at least 95% theoretical densities. Samples of the BNT with La modification exhibited a dielectric permittivity of 515, electromechanical coupling factors kt of 45% and kp of 13%, and a piezoelectric charge coefficient d33 of 100. The properties of the La-modified BNT suggest that these compositions are potential candidates for hydrophone applications.

AB - Bismuth sodium titanate (Bi0.5Na0.5TiO3), BNT, with a small amount of additives including La, Sm, Nd, and Nb were prepared by a conventional mixed oxide method. Powders of all compositions were calcined at 800 °C for 2 hrs to form a pure perovskite phase. All specimens were sintered at 1150 °C for 2 hrs to achieve at least 95% theoretical densities. Samples of the BNT with La modification exhibited a dielectric permittivity of 515, electromechanical coupling factors kt of 45% and kp of 13%, and a piezoelectric charge coefficient d33 of 100. The properties of the La-modified BNT suggest that these compositions are potential candidates for hydrophone applications.

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T2 - Proceedings of the 1996 10th IEEE International Symposium on Applications of Ferroelectrics, ISAF. Part 1 (of 2)

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