Abstract
\(Ba_3 M_3 Ti_5 Nb_5 O_{30}\) (M=Sm or Y) compounds were synthesized by the conventional powder compaction and high temperature solid state reaction technique. The calcined compounds were pelletized and sintered in the range 1275–1325 °C for 4 h. The dielectric and ferroelectric properties of the sintered pellets were measured and further characterised by X-ray diffraction and scanning electron microscopy (SEM). Sm and Y substituted compounds were found to have tetragonal structure and shown dielectric constants of 145 and 49 respectively at 1 MHz. The dielectric loss increases with frequency. Samarium compound had undergone a diffuse phase transition in the temperature range 195–210 °C whereas the same with Yttrium had shown the transition at around 25 °C.
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M. Kahn, D. P. Burks, I. Burn and W. Schulze, in “Electronic Ceramics”, edited by L. M. Levinson (Marcel Dekker, New York, 1988) p. 191.
G. Goodman, in “Ceramic Materials for Electronics”, edited by R. C. Buchanan (Marcel Dekker, New York, 1986) p. 79.
J. M. Herbert, “Ceramic Dielectrics and Capacitors” (Gordon & Breach Science Publishers, New York, 1985) p. 188.
D. Liu, Y. Li, S. Q. Huang and X. Yao, J. Amer. Ceram. Soc. 76 (1993) 2129.
Y. Sakabe, Am. Ceram. Soc. Bull. 66 (1987) 1338.
H. Sreemoolanathan, M. T. Sebastian and P. Mohanan, Mater. Res. Bull. 309 (1995) 653.
H. Sreemoolanathan, P. Koshy, J. Isac, M. T. Sebastian, K. A. Jose and P. Mohanan, Br. Ceram. Trans. J. 94 (1995) 157.
S. Kawashima, M. Nishida, I. Ueda and H. Uchi, J. Amer. Cer. Soc. 66 (1983) 421.
D. F. K. Hennings and B. S. Schreinemacher, J. Eur. Ceram. Soc. 14 (1994) 463.
A. Von Hippel, R. G. Breckenridge, F. G. Chesley and L. Tisza, Ind. Eng. Chem. 38 (1946) 1097.
H. M. O'Bryan, J. Thomson and J. K. Ploiurde, J. Am. Ceram. Soc. 57 (1974) 450.
J. P. Guha, ibid. 74 (1991) 878.
X. M. Chen, Y. Suzuki and N. Sato, J. Mat. Sci: Mater. Electron 6 (1995) 10.
P. Koshy, L. Prasannakumari and M. T. Sebastian, ibid. 9 (1998) 43.
K. S. Singh, R. Sati and R. N. P. Choudhary, J. Mater. Sci. Lett. 11 (1992) 788.
N. Setter and L. E. Cross, J. Mater. Sci. 15 (1980) 2478.
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Rao, P.P., Ghosh, S.K. & Koshy, P. Dielectric and ferroelectric properties of Ba3M3Ti5Nb5O30 (M=Sm or Y) ceramics. Journal of Materials Science: Materials in Electronics 12, 729–732 (2001). https://doi.org/10.1023/A:1012944927315
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DOI: https://doi.org/10.1023/A:1012944927315