Abstract
We have found internal friction measurement is very sensitive to phase transitions in relaxor ferroelectrics.Internal friction of relaxor ceramics（1-x%）Pb(Mg1/3Nb2/3)O3-x%PbTiO3（PMNTx）,（0<x<33） at both low frequency（0.110 Hz） and sonic frequency（1 kHz） has been studied,which clearly exhibits a phase transition close to the freezing temperature of nano-domains.The internal friction peak due to the phase transition shows increasing peak height with the increase of PbTiO3 content.Mechanical response induced by the relaxation of nano-domains has been observed as well,which is consistent with dielectric measurements.
| Original language | English |
|---|---|
| Pages (from-to) | 378-385 |
| Number of pages | 8 |
| Journal | 物理學進展 (Progress in physics) |
| Volume | 26 |
| Issue number | 3 & 4 |
| Publication status | Published - 2006 |
Keywords
- (1-x%)Pb(Mg1/3Nb2/3)O3-x%PbTiO3 ceramics
- Internal friction and modulus
- Relaxation of nano-domains
- Freezing of nano-domains