Hostname: page-component-78c5997874-g7gxr Total loading time: 0 Render date: 2024-11-11T01:35:41.015Z Has data issue: false hasContentIssue false
  • English
  • Français

Electron microscopy characterization of Ba(Cd1/3Ta2/3)O3 microwave dielectrics with boron additive

Published online by Cambridge University Press:  03 March 2011

J. Sun ,
Shaojun Liu ,
N. Newman ,
M.R. McCartney  and
David. J. Smith
J. Sun
Affiliation:
Center for Solid State Science, Arizona State University, Tempe, Arizona 85287; and School of Materials Science and Engineering, Shanghai Jiao-tong University, Shanghai 20003, People’s Republic of China
Shaojun Liu
Affiliation:
Department of Chemical and Materials Engineering, Science and Engineering Materials Program, Arizona State University, Tempe, Arizona 85287
N. Newman
Affiliation:
Department of Chemical and Materials Engineering, Science and Engineering Materials Program, Arizona State University, Tempe, Arizona 85287
M.R. McCartney
Affiliation:
Center for Solid State Science, Arizona State University, Tempe, Arizona 85287
David. J. Smith
Affiliation:
Center for Solid State Science, and Department of Physics and Astronomy, Arizona State University, Tempe, Arizona 85287
Get access

Abstract

The microstructure of Ba(Cd1/3Ta2/3)O3 ceramics with boron additive was investigated by high-resolution and analytical electron microscopy. Superlattice reflections were present at positions of (h ± 1/3, k ± 1/3, l ± 1/3) away from the fundamental reflections in the [110] zone diffraction pattern for the pseudocubic perovskite unit cell. Lattice images showed a well-ordered structure with hexagonal symmetry. No boron segregation and amorphous phase was observed along grain boundaries. An amorphous phase rich in boron-oxide was observed to form pockets partially penetrating along multiple grain junctions.

Keywords

CeramicMicrostructureTransmission electron microscopy (TEM)
Type
Articles
Information
Journal of Materials Research , Volume 19 , Issue 5 , May 2004 , pp. 1387 - 1391
Copyright
Copyright © Materials Research Society 2004

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1Wakino, K., Nishikawa, T., Ishikawa, Y. and Tamura, H, Br. Ceramic. Trans. J. 89, 39 (1990).Google Scholar
2Rong, G., Newman, N., Shaw, B. and Cronin, D., J. Mater. Res. 14, 4011 (1999).CrossRefGoogle Scholar
3Vandreah, T. A., Science 298, 1182 (2002).Google Scholar
4Galasso, F. and Pyle, J., Inorg. Chem. 2, 482 (1963).CrossRefGoogle Scholar
5Kawashima, S., Nishida, M., Ueda, I. and Ouchi, H., J. Am. Ceram. Soc. 66, 421 (1983).CrossRefGoogle Scholar
6 K. Matsumoto, T. Hiuga, K. Takada, and H. Ichimura: Proceedings of the 6th IEEE International Symposium on Application of Ferroelectrics (IEEE, 1986), p. 118.Google Scholar
7Galasso, F. and Pyle, J., J. Phys. Chem. 67, 1561 (1963).CrossRefGoogle Scholar
8 S. Liu and N. Newman: (unpublished).Google Scholar
9Ganguii, A.K., Jayadevan, K.P., Subbanna, G.N. and Varma, K.B.R., Solid State Commun. 94, 13 (1995).CrossRefGoogle Scholar
10 S. Liu, J. Sun, D.J. Smith, and N. Newman: (unpublished).Google Scholar
11Davies, P. and Tong, J., J. Am. Ceram. Soc. 80, 1727 (1997).CrossRefGoogle Scholar
12Chai, L., Akbas, M.A., Davies, P.K. and Parise, J.B., Mater. Res. Bull. 32, 1261 (1997).Google Scholar
13Jacobson, A.J., Collins, B.M. and Fender, B.E.F., Acta Cryst. B32, 1083 (1976).CrossRefGoogle Scholar
14Ho, I.C., J. Am. Ceram. Soc. 77, 829 (1994).Google Scholar
15Lee, J.H., Heo, Y.W., Lee, J.A., Ryoo, Y.D., Kim, J.J. and Cho, S.H., Solid State Ionics 101–103, 787 (1997).Google Scholar
16Rhim, S.M., Bak, H., Hong, S. and Kim, O.K., J. Am. Ceram. Soc. 83, 3009 (2000).Google Scholar
17Levin, E.M. and McMurdie, H.F., Phase Diagram for Ceramists Supplement (American Ceramics Society Inc, 1975), p. 97.Google Scholar
18Subbarao, E.C. and Hummel, F.A., Phase Diagram for Ceramists (American Ceramics Society Inc., 1964), p. 109.Google Scholar