Abstract
ZrO2 substituted polycrystalline BaTi2O5, Ba(Ti1-yZry)2O5, (BT2Z), was prepared by arc-melting and the dielectric property was investigated by AC impedance spectroscopy. The length of a-axis increased from 1.6895 to 1.6952nm and that of c-axis increased from 0.9411 to 0.9436nm with increasing y up to 0.06. The b-axis was almost independent of ZrO2 content. The solubility limit of ZrO2 (y) in BT2Z can be 0.06. BT 2Z had a strong b-axis orientation at y < 0.06. The permittivity of BT2Z at y = 0.005 showed the highest peak of 3050 at 725 K and the peak temperature decreased from 750 to 465 K with increasing y from 0 to 0.064. A relaxor-like frequency dependence of permittivity was observed at y > 0.06.
| Original language | English |
|---|---|
| Pages (from-to) | 120-124 |
| Number of pages | 5 |
| Journal | Materials Transactions |
| Volume | 49 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2008 Jan |
Keywords
- Arc-melting
- BaTiO
- Dielectric property
- Polycrystals
- ZrO
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering