Hostname: page-component-586b7cd67f-vdxz6 Total loading time: 0 Render date: 2024-11-22T22:15:30.807Z Has data issue: false hasContentIssue false
  • English
  • Français

Dielectric Ceramics with Tungsten-bronze Structure in the BaO–Nd2O3–TiO2–Nb2O5 System

Published online by Cambridge University Press:  31 January 2011

X. H. Zheng  and
X. M. Chen
X. H. Zheng
Affiliation:
Department of Materials Sciences and Engineering, Zhejiang University, Hangzhou 310027, Peoples Republic of China
X. M. Chen
Affiliation:
Department of Materials Sciences and Engineering, Zhejiang University, Hangzhou 310027, Peoples Republic of China
Get access

Abstract

Some tungsten-bronze compounds in the BaO–Nd2O3–TiO2–Nb2O5 system were prepared and characterized. Ba4Nd2Ti4Nb6O30 and Ba5NdTi3Nb7O30 had the filled tetragonal tungsten-bronze structure, and Ba3Nd3Ti5Nb5O30 consisted of the tetragonal tungsten-bronze major phase and a minor amount of secondary phase BaNd2Ti3O10. These compounds had significant relaxor behaviors, and the Curie temperatures (at 1 MHz) were 0 and 55 °C for Ba3Nd3Ti5Nb5O30 and Ba5NdTi3Nb7O30 ceramics, respectively. A high dielectric constant (213) combined with low dielectric loss (0.004 at 1 MHz) was obtained in Ba3Nd3Ti5Nb5O30 ceramics. In addition, the solid-solution range of BapNd6−pTi8−pNb2+pO30 was 3 < p ≤ 6.

Type
Articles
Information
Journal of Materials Research , Volume 17 , Issue 7 , July 2002 , pp. 1664 - 1670
Copyright
Copyright © Materials Research Society 2002

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

Neurgankar, R.I., Hall, W.F., Oliver, J.R., Ho, W.W., and Cory, W.K., Ferroelectrics 87, 167 (1988).CrossRefGoogle Scholar
Bhanumathi, A., Murty, S. Narayana, Umakantham, K., Mouli, K. Chandra, Padmavathi, G., Rao, K. Tirumala, and Syamalamba, V., Ferroelectrics 102, 173 (1990).CrossRefGoogle Scholar
Yano, T., Ohta, T., and Watanabe, A., Jpn. J. Appl. Phys. 9, 1008 (1970).CrossRefGoogle Scholar
Wakiya, N., Wang, J.K., Saiki, A., Shinozaki, K., and Mizutani, N., J. Eur. Ceram. Soc. 19, 1071 (1999).CrossRefGoogle Scholar
Tribotte, B., Haussonne, J.M., and Desgardin, G., J. Eur. Ceram. Soc. 19, 1105 (1990).CrossRefGoogle Scholar
Roberts, G.L., Cava, R.J., Peck, W.F., and Krajewski, J.J., J. Mater. Res. 12, 526 (1997).CrossRefGoogle Scholar
Bhanumathi, A., Murty, S. Narayana, Umakantham, K., Mouli, K. Chandra, Padmavathi, G., Rao, K. Tirumala, and Syamalamba, V., Ferroelectrics 102, 173 (1990).CrossRefGoogle Scholar
Chen, X.M. and Yang, J.S., J. Eur. Ceram. Soc. 19, 139 (1999).CrossRefGoogle Scholar
Chen, X.M., Lü, G.L., Yang, J.S., and Wu, Y.J., J. Solid State Chem. 148, 438 (1999).CrossRefGoogle Scholar
Chen, X.M., Xu, Z.Y., and Li, J., J. Mater. Res. 15, 125 (1990).CrossRefGoogle Scholar
Ikeda, T., Haraguchi, T., Onodera, Y., and Saito, T., Jpn. J. Appl. Phys. 10, 987 (1971).CrossRefGoogle Scholar
Shannigrahi, S.R., Choudhary, R.N.P., Kumar, A., and Acharya, H.N., J. Phys. Chem. Solids 59, 737 (1990).CrossRefGoogle Scholar
Palai, R., Choudhary, R.N.P., and Tewari, H.S., J. Phys. Chem. Solids 62, 695 (2001).CrossRefGoogle Scholar
Zheng, X.H. and Chen, X.M. (unpublished)Google Scholar
Koshy, P., Kumari, K.P., and Sebastian, M.T., J. Mater. Sci. Mater. Electron. 9, 43 (1998).CrossRefGoogle Scholar
JCPDS Card No. 39-1445 (Joint Committee for Powder Diffraction Standards, 1992).Google Scholar
JCPDS Card No. 39-0255 (Joint Committee for Powder Diffraction Standards, 1992).Google Scholar
JCPDS Card No. 78-0102 (Joint Committee for Powder Diffraction Standards, 1999).Google Scholar
JCPDS Card No. 38-1331 (Joint Committee for Powder Diffraction Standards, 1992).Google Scholar
Stephenzon, N.C., Acta Crystall. 18, 496 (1965).CrossRefGoogle Scholar
Megaw, H.D., Proc. Phys. Soc. 58, 133 (1946).CrossRefGoogle Scholar
Shannon, R.D., Acta. Crystall. A32, 751 (1976).CrossRefGoogle Scholar
Lange’s Handbook of Chemistry, 15th ed., edited by Dean, J.A. (McGraw-Hill, New York, 1999).Google Scholar
Zhong, W.L., Zhang, P.L., Chen, H.C., Chen, F.S., and Song, Y.Y., Ferroelectrics 74, 325 (1987).CrossRefGoogle Scholar
Abrahams, S.C., Kurtz, S.K., and Jamieson, P.B., Phys. Rev. 172, 551 (1968).CrossRefGoogle Scholar