Hostname: page-component-cd9895bd7-8ctnn Total loading time: 0 Render date: 2024-12-28T20:21:26.641Z Has data issue: false hasContentIssue false
  • English
  • Français

Structure-Property Relations in Sol-Coated PMN Ceramics: Microscopy, Dielectric and Electromechanical Response

Published online by Cambridge University Press:  10 February 2011

A. Sehirlioglu  and
S.M. Pilgrim
A. Sehirlioglu
Affiliation:
New York College of Ceramics at Alfred University, Alfred, NY, 14802
S.M. Pilgrim
Affiliation:
New York College of Ceramics at Alfred University, Alfred, NY, 14802
Get access

Abstract

Some of the most promising materials for electrostrictive response are Pb(Mg1/3, Nb2/3)O3 (PMN) - ceramics; however, the properties of a given composition are only optimum in a limited range of temperatures. In a previous study, it was found that sol coating of PMN particles modified and improved the electromechanical and/or dielectric properties of the resulting product--doubling induced strain in some cases. Understanding the origin of these changes will help to produce an optimized PMN ceramic for a given application from a single source powder. This work concentrates on the Ti and Zn coatings which gave superior properties within the concentration matrix. The relation between the structure and the enhanced electrostrictive behavior is studied. Structural characterization is done by XRD, TEM and SEM.Electrical measurements of dielectric constant, loss, polarization and strain, the property determinations needed to complete the structure-property suite.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 606: Symposium NN – Chemical Processing of Dielectrics, Insulators & Electronic Ceramics , 1999 , 286
Copyright
Copyright © Materials Research Society 2000

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

1 Jaffe, B., Cook, W.R. and Jaffe, H.L., Piezoelectric ceramics, (Academic Press, New York, 1971) Chp. 2.Google Scholar
2 Cady, W.G, Piezoelectricity: an introduction to the theory and applications of electromechanical phenomena in crystals, (McGraw-Hill, 1946) pp. 198–199.Google Scholar
3 Nomura, S. and Uchino, K., Ferroelectrics, vol. 41, pp. 117–132, (1982)Google Scholar
4 Brooks, K.G., “A Comparative Study of Bi2O3 and Organometallic Derived Boro-Silicate Sintering Additives as Applied to Li-Zn Microwave Ferrites”; Ph.D. Thesis, Alfred University, NY, USA, 1990 Google Scholar
5 Cho, Y.S., Pilgrim, S.M., Giesche, H. and Bridger, K., accepted J. Amer. Ceram. Soc., October 1999.Google Scholar
6 Uchino, K., Tatsumi, M., Hayashi, I. and Hayashi, T., Jap. J. of App. Phys., Vol. 24 Supplement 24-2, pp.733–735, (1985)Google Scholar
7 Newnham, R.E. and Trolier-McKinstry, S., Ceramic Transactions, Vol 32. Edited by Nair, K.M., Guha, J.P. and Okamoto, A., (The American Ceramic Society, Westerville, Ohio, 1993) pp. 1–18.Google Scholar