Effects of Y2O3 Addition on the Microstructure and Electrical Property of TiO2-Excess BaTiO3


Article Preview

When Y2O3 was added to Ti-excess BaTiO3 ((Ba+Y)/Ti =1), the the area occupied by Y3+ ion was confirmed by its microstructure development, electrical conductivity behavior and lattice constant. Grain growth inhibition was observed when the content of donor dopant exceeded a critical value (x≈0.01) in BaTiO3+x(0.5Y2O3+TiO2) system. A donor-doped behavior was observed at various Y contents (0.2~3.0 mol% Y) when Y2O3 was added to TiO2-excess BaTiO3. As Y content was increased, (002) and (200) peaks shifted to higher angles and the lattice constant (a and c axis) decreased gradually. These results confirms that Y3+ ions preferentially occupy Ba sites when Ba/Ti < 1.



Materials Science Forum (Volumes 534-536)

Edited by:

Duk Yong Yoon, Suk-Joong L. Kang, Kwang Yong Eun and Yong-Seog Kim




J. H. Kim and Y. H. Han, "Effects of Y2O3 Addition on the Microstructure and Electrical Property of TiO2-Excess BaTiO3", Materials Science Forum, Vols. 534-536, pp. 1025-1028, 2007

Online since:

January 2007




[1] Y. Nakano, A. Satoh, A. Hitomo and Nomura : T., Ceramic Trans-actions Vol. 32 (1993), p.119.

[2] Y. Tsur, T. D. Dunbar and C. A. Randall : J. Electroceram. Vol. 7 (2001), p.25.

[3] J. H. Jeong, M. G. Park and Y. H. Han : J. Electroceram. Vol. 13 (2004), p.805.

[4] F. A. Kröger and Vink : Solid State Physics. Academic Press, New York (1956), p.307.

[5] L. A. Xue, Y. Chen and J. Brook : Materials Science and Engineering Vol. B1 (1988), p.193.

[6] M. H. Lin and H. Y. Lu : Mater. Sci. Eng. Vol. A335 (2002), p.101.

[7] C. J. Peng, and H. Y. Lu : J. Am Ceram. Soc. Vol. 71.

[1] (1988), p. C44.

[8] C. J. Ting, C. J. Peng, H. Y. Lu and S. T. Wu : J. Am Ceram. Soc. Vol. 73 (1990), p.329.

[9] J. H. Kim, S. H. Yoon and Y. H. Han : J. Eur. Ceram. Soc. In press.

[10] K. Takada, E. Chang and D. M. Smyth : Adv. in Cera. Vol. 19 (1986), p.147.

[11] N. H. Chan, and D.M. Smyth : J. Am. Ceram. Soc. Vol. 67 (1984), p.285.

[12] J. Daniels and K. H. Härdtl : Philips Res. Repts. Vol. 31 (1976), p.489.

[13] Y. Tsur, A. Hitomi, I. Scrymgeour and C. A. Randall : Jpn. J. Appl. Phys. Vol. 40 (2001).

Fetching data from Crossref.
This may take some time to load.