Electric Properties of Sr1-xBi2+xTa2-yNbyO9 Ceramics

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The dielectric, ferroelectric and piezoelectric properties of strontium bismuth tantalate niobate, Sr1-xBi2+xTa2-yNbyO9 [SBTN10x(y)] ceramics were investigated. The samples were fabricated by a conventional ceramic fabrication technique. Curie temperature, Tc, increased with an increase in Nb concentration y, and Tc of SBTN2(y) showed two regions with different slopes that divided near y=1.0. The coercive field, Ec, of SBTN2(y) increased with the increase in y and the highest Ec of 90 kV/cm was obtained. SBTN2(0.6) and SBTN2(1.0) showed the highest coupling factor k33 of 0.17 in the SBTN2(x) system.

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Edited by:

Masaru Miyayama, Tadashi Takenaka, Masasuke Takata and Kazuo Shinozaki

Pages:

11-14

DOI:

10.4028/www.scientific.net/KEM.301.11

Citation:

T. Takenaka "Electric Properties of Sr1-xBi2+xTa2-yNbyO9 Ceramics", Key Engineering Materials, Vol. 301, pp. 11-14, 2006

Online since:

January 2006

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$35.00

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