Hostname: page-component-8448b6f56d-42gr6 Total loading time: 0 Render date: 2024-04-25T05:51:27.913Z Has data issue: false hasContentIssue false
  • English
  • Français

Dynamic Behavior of Twins In BaTiO3

Published online by Cambridge University Press:  15 February 2011

Kalpana S. Katti  and
Mehmet Sarikaya
Kalpana S. Katti
Affiliation:
Materials Science and Engineering, University of Washington, Seattle WA 98195, USA
Mehmet Sarikaya
Affiliation:
Materials Science and Engineering, University of Washington, Seattle WA 98195, USA
Get access

Abstract

The most prominent lattice defects in barium titanate, i.e., twins on two distinct lattice planes { 111 } and { 110 }, were characterized using dynamic transmission electron microscopy techniques in the image and diffraction modes. In-situ heating experiments from room temperature up to 130°C and then cooling down to -168°C reveal a dependence of { 110 } twins on ferroelectric transition. On the other hand, { 111 } twins are found to be completely stable through the ferroelectric transition and exist in all phases. Streaking is observed in the diffraction spots leading to an estimation of { 1111 twin wall thickness to be about 10Å while no such streaking was observed corresponding to { 1101 twins. Based on these observations and the behavior of the twin boundaries under dynamic heating cycles, an estimate of the twin wall energies indicates that { 111 } walls have three orders of magnitude higher energy than that of { 110 } walls which explains their relative thermal and mechanical stability.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 357: Symposium C – Structure and Properties of Interfaces in Ceramics , 1994 , 121
Copyright
Copyright © Materials Research Society 1995

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. Amin, A., J. Am. Ceram. Soc., 72 [3] 369–376 (1989).Google Scholar
2. Heywang, W. and Thomann, H., in Electronic Ceramics, Steele, B. C. H. (ed.) (Elsevier Applied Science, London and New York, 1991).Google Scholar
3. Yan, M. F., Mater. Sci. Eng., 48, 53–72 (1981).Google Scholar
4. Drofenik, M., J. Am. Ceram. Soc., 76 [1] 123–128 (1993).Google Scholar
5. Miyayama, M., Private communication.Google Scholar
6. Arlt, G., J. Mater. Sci., 25, 2655 (1990).Google Scholar
7. Eible, O., Pongratz, P., and Skalicky, P., Phil. Mag. B., 57, 521 (1988).Google Scholar
8. Sarikaya, M., Kikuchi, R., and Aksay, I. A., Physica C 152 161–170 (1988).Google Scholar
9. Sarikaya, M., Stern, E. A., Phys. Rev. B, 37 [16] 9373–9381 (1988).Google Scholar
10. Jaffe, B., Cook, W. R., and Jaffe, H., Piezoelectric Ceramics (Academic, London, 1971).Google Scholar