Dielectric Property of Poly- and Single-Crystalline BaTi2O5 Co-Substituted with SrO and ZrO2

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Poly- and single-crystalline BaTi2O5 co-substituted with SrO and ZrO2, Ba0.99Sr0.01(Ti1-xZrx)2O5 (BT2SZ) were prepared by arc-melting and floating-zone (FZ) melting, respectively. The specimens showed a significant (020) orientation. The highest permittivity of poly-crystalline BT2SZ was 3880 at x = 0.005 and that of single-crystal was 27000 at x = 0.005. The Curie temperature (Tc) of poly-crystals decreased from 750 to 640 K with increasing x from 0 to 0.026 and that of single-crystals decreased from 750 to 710 K with increasing x from 0 to 0.008. The highest remnant polarization of single crystalline BT2SZ was 7.8×10-2 Cm-2 at x = 0.008, higher than that of the poly-crystal.

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Edited by:

Kazumi Kato, Tadashi Takenaka, Masasuke Takata and Kazuo Shinozaki

Pages:

217-220

DOI:

10.4028/www.scientific.net/KEM.388.217

Citation:

X. Y. Yue et al., "Dielectric Property of Poly- and Single-Crystalline BaTi2O5 Co-Substituted with SrO and ZrO2", Key Engineering Materials, Vol. 388, pp. 217-220, 2009

Online since:

September 2008

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$38.00

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