Abstract
Lead zirconium titanate (PZT) perovskite powders were synthesized without using any excess lead content by microwave hydrothermal method (M-H) at 122°C and conventional hydrothermal (C-H) method at 138°C. PZT powders prepared by both methods showed a particle size of less than 4 μm. Pellets prepared from these powders and sintered at 1250°C for 4 h, without any additives or sintering aids, showed densities in the range of 92-95% of theoretical density. Variation of relative permittivity and dissipation factor with temperature of these PZT pellets was studied. A maximum permittivity of 20,570, low dissipation factor of 0.002, and Curie temperature of 373°C were observed for sintered pellets prepared from PZT powders obtained by microwave hydrothermal method. The pellets prepared from PZT powders obtained by the conventional hydrothermal method showed a relative permittivity of 16,310, dissipation factor of 0.001, and Curie temperature of 351°C.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1411-1419 |
| Number of pages | 9 |
| Journal | Materials Research Bulletin |
| Volume | 34 |
| Issue number | 9 |
| DOIs | |
| State | Published - Jul 1 1999 |
All Science Journal Classification (ASJC) codes
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering