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Ordered Structures in Ba(Cd1/3Ta2/3)O3 Microwave Ceramics: A Transmission Electron Microscopy Study

Published online by Cambridge University Press:  01 February 2011

J. Sun,
S. J. Liu,
N. Newman and
David. J. Smith
J. Sun
Affiliation:
Center for Solid State ScienceSchool of Materials Science and Engineering, Shanghai Jiao-tong University, Shanghai 20003, P. R. China
S. J. Liu
Affiliation:
Department of Chemical and Materials Engineering, Materials and Engineering Program
N. Newman
Affiliation:
Department of Chemical and Materials Engineering, Materials and Engineering Program
David. J. Smith
Affiliation:
Center for Solid State ScienceDepartment of Physics and Astronomy, Arizona State University, Tempe AZ 85287, U.S.A.
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Abstract

Ordered structures of Ba(Cd1/3Ta2/3)O3 ceramics with and without boron additive were investigated systemically by electron diffraction and high resolution transmission electron microscopy. The results showed a well-ordered structure of 1:2 with hexagonal symmetry for Ba(Cd1/3Ta2/3)O3 with boron additive. No significant changes in ordered structures were observed after long-period annealing. The 1:2 ordered domain structures (average domain size ∼18 nm) and high-density domain boundaries induced by ordering were observed for Ba(Cd1/3Ta2/3)O3 without boron additive sintered at relatively high temperature. The sintering process has a profound influence on the microstructure of Ba(Cd1/3Ta2/3)O3 ceramics.

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References

REFERENCES

1. Vanderah, T. A., Sceince 298, 1182 (2002).Google Scholar
2. Rong, G., Newman, N., Shaw, B., and Cronin, D., J. Mater. Res. 14, 4011 (1999).Google Scholar
3. Wakino, K., Nishikawa, T., Ishikawa, Y., and Tamura, H, Br. Ceramic. Trans. J. 89, 39 (1990).Google Scholar
4. Galasso, F. and Pyle, J., Inorg. Chem. 2, 482 (1963).Google Scholar
5. Galasso, F. and Pyle, J., J. Phys. Chem. 67, 1561 (1963).Google Scholar
6. Kawashima, S., Nishida, M., Ueda, I., and Ouchi, H., J. Am. Ceram. Soc. 66, 421 (1983).Google Scholar
7. Matsumoto, K., Hiuga, T., Takada, K., and Ichimura, H., Proceedings of the 6th IEEE International Symposium on Application of Ferroelectrics, (1986), p. 118.Google Scholar
8. Liu, S., Taylor, R., Budd, L., Petrovixc, N. S., Schilfgaarde, M. V. and Newman, N., (submitted to J. Am. Ceram. Soc).Google Scholar
9. Ganguii, A. K., Jayadevan, K. P., Subbanna, G. N., and Varma, K. B. R., Solid State Communications 94, 13 (1995).Google Scholar
10. Liu, S., Sun, J., Smith, D. and Newman, N., (unpublished).Google Scholar
11. Jacobson, A. J., Collins, B. M., and Fender, B. E. F., Acta Cryst. B32, 1083 (1976).Google Scholar
12. Woodward, P., Hoffman, R-D., and Sleight, A. W., J Mater Res. 9, 2118 (1994).Google Scholar