| Numéro |
J. Phys. IV France
Volume 129, October 2005
|
|
|---|---|---|
| Page(s) | 185 - 187 | |
| DOI | https://doi.org/10.1051/jp4:2005129039 | |
J. Phys. IV France 129 (2005) 185-187
DOI: 10.1051/jp4:2005129039
Mechanical loss associated with the grain size in lead zirconate titanate ceramics
R. Zachariasz, M. Czerwiec, J. Ilczuk, B. Brus, A. Zarycka and J. BartkowskaDepartment of Material Science, Faculty of Computer and Material Sciences, University of Silesia, 3 Zeromskiego St., 41-200 Sosnowiec, Poland
Abstract
The mechanical loss (Q-1) and Young's modulus (E)
were measured as a function of temperature in the range 293K<T<750K on
rectangular bar samples of ferroelectric PbZr
Ti
O3
ceramics. There are two mechanical loss peaks, which are located below the
phase transition point in coarse grained samples and they seem to be
associated with the motion of domain walls. One of these peaks are not
observed in fine grained undoped ceramics. The use of dopants such as Ge,
Bi, Nb produces an attenuation of mechanical loss, a smoothing of elastic
modulus anomalies, and a shifting of the phase transition temperatures.
© EDP Sciences 2005